60
match your filters
60
answered today
5
arrived this week
2
stopped answering
What we measured
We check every product on this page once a day and record whether it still answers.
Free calculator that tells you the right rug size for any room, for anyone furnishing a space without hiring a stylist.
What we measured
We check every product on this page once a day and record whether it still answers.
Editable-tape calculator app where changing one line recomputes everything below it, for people who need to fix mistakes mid-calculation.
What we measured
We check every product on this page once a day and record whether it still answers.
A set of free browser-only calculators (VAT, invoice, tax, break-even) for freelancers with no account or server upload.
What we measured
We check every product on this page once a day and record whether it still answers.
Calculator for Pakistan property owners to estimate annual property tax based on Excise and Taxation rates and DC values.
What we measured
We check every product on this page once a day and record whether it still answers.
A free set of browser-based calculators and converters, including state-by-state paycheck calculators, with no signup or download.
What we measured
We check every product on this page once a day and record whether it still answers.
Free, browser-only financial calculators (mortgage, debt, retirement) that never send your numbers to a server.
What we measured
We check every product on this page once a day and record whether it still answers.
A free, no-signup calculator that turns Saudi high-school/Qudurat/Tahsili/STEP scores into weighted university admission scores, for students comparing program eligibility instead of doing the math by hand.
What we measured
We check every product on this page once a day and record whether it still answers.
Excel-based analytics portal for tracking restaurant sales and optimizing payroll/labor cost percentage.
What we measured
We check every product on this page once a day and record whether it still answers.
Máy tính online is a free web-based calculator for basic to advanced math, usable instantly without installation.
What we measured
We check every product on this page once a day and record whether it still answers.
A collection of free health, finance, and everyday calculators with no sign-up required.
What we measured
We check every product on this page once a day and record whether it still answers.
A free online calculator that instantly computes profit margin, revenue and costs — a general business math tool, not industry-specific.
What we measured
We check every product on this page once a day and record whether it still answers.
Gives people needing quick calculations 200+ free calculators with formulas shown instead of a bare answer with no explanation.
What we measured
We check every product on this page once a day and record whether it still answers.
A free web calculator that converts hourly wages to salary and estimates take-home pay after federal/state taxes and 401k — no signup needed.
What we measured
We check every product on this page once a day and record whether it still answers.
Free take-home-pay and financial calculators — salary, FIRE, mortgage, compound interest — for the US and several European countries in five languages. A general personal-finance calculator hub.
What we measured
We check every product on this page once a day and record whether it still answers.
A free fan-made hub of how-to-play guides and 13 interactive calculators/trackers for 46 popular games like Elden Ring and Stardew Valley.
What we measured
We check every product on this page once a day and record whether it still answers.
A free calculator platform that shows the actual formula and worked example behind every result, for people who want to verify a calculation instead of just copying a number.
What we measured
We check every product on this page once a day and record whether it still answers.
A grab-bag of 110+ generic calculators and converters for finance, engineering, science and daily tasks — built for everyone, not specifically students, teachers or developers.
What we measured
We check every product on this page once a day and record whether it still answers.
An educational platform teaching personal finance, investing, mutual funds, taxes, and retirement through data-driven content.
What we measured
We check every product on this page once a day and record whether it still answers.
Free gross-to-net salary, VAT, and finance calculators for 28 European countries, with side-by-side comparisons, PDF export, and no signup.
What we measured
We check every product on this page once a day and record whether it still answers.
Calculator for medical billing RVUs (work, practice expense, malpractice) and payment amounts from CPT/HCPCS codes.
What we measured
We check every product on this page once a day and record whether it still answers.
Trip-cost calculator showing the real round-trip cost (gas, tolls, entry fees) for day trips across 25,000+ places in Chile, expanding to Argentina and Mexico.
Watch out · currently strongest in Chile, expanding elsewhere
What we measured
We check every product on this page once a day and record whether it still answers.
A calm, step-by-step guide to using the TI-Nspire CAS calculator across Analysis, Algebra, Statistics and Geometry, for upper-secondary students stuck with a 300-page manual and scattered tutorials.
What we measured
We check every product on this page once a day and record whether it still answers.
A free library of 500+ online calculators covering math, engineering, finance, and unit conversions.
What we measured
We check every product on this page once a day and record whether it still answers.
A free, no-signup collection of 90+ calculators for finance, construction, payroll and health, organized so you get an instant answer instead of digging through search results.
What we measured
We check every product on this page once a day and record whether it still answers.
A free, no-login set of 17 Hong Kong-specific financial calculators covering property, tax, retirement, and investing, instead of generic US-centric calculators.
What we measured
We check every product on this page once a day and record whether it still answers.
Gives people needing quick math or conversions thousands of free calculators instead of installing an app or creating an account.
What we measured
We check every product on this page once a day and record whether it still answers.
Tool that simplifies trigonometric expressions and identities for algebra and trig problems.
What we measured
We check every product on this page once a day and record whether it still answers.
100+ free offline browser tools spanning PDF, image, developer, finance and niche calculators, no ads or signup.
What we measured
We check every product on this page once a day and record whether it still answers.
Free browser-based toolkit with calculators, converters, text and image utilities, PDF merge, and developer tools.
What we measured
We check every product on this page once a day and record whether it still answers.
A developer API that resolves and calculates EU VAT rates and generates audit-ready records for e-commerce sellers, instead of maintaining country-by-country tax spreadsheets or plugins.
Watch out · Currently in alpha.
What we measured
We check every product on this page once a day and record whether it still answers.
German property tax and cashflow calculator for investors
What we measured
We check every product on this page once a day and record whether it still answers.
Offline ballistics calculator app for precision rifle shooters computing bullet drop and trajectory.
What we measured
We check every product on this page once a day and record whether it still answers.
Lets Indian business owners and salaried individuals calculate EMI, GST and tax instead of hiring an accountant for simple math.
What we measured
We check every product on this page once a day and record whether it still answers.
A normal iPhone calculator app skinned with cat themes and customizable colors, for people who want a calculator with personality.
What we measured
We check every product on this page once a day and record whether it still answers.
A free set of keto calculators and a 268-food database for tracking macros, net carbs and ketosis timing.
What we measured
We check every product on this page once a day and record whether it still answers.
A free bundle of 332 small web utility tools pitched as secure and privacy-first, though the listing gives no detail on what each tool does or how it handles data.
What we measured
We check every product on this page once a day and record whether it still answers.
A free calculator that turns your exam marks into a percentage instantly — built for students who don't want to do the math by hand.
What we measured
We check every product on this page once a day and record whether it still answers.
A calculator that estimates an email warmup timeline by reading your domain's SPF/DKIM/DMARC records.
What we measured
We check every product on this page once a day and record whether it still answers.
A set of offline machinist calculators for iPhone and iPad that work without a cloud connection.
Watch out · Works offline, iPhone/iPad only.
What we measured
We check every product on this page once a day and record whether it still answers.
A free hub of everyday calculators (finance, health, education, utilities) for people who don't want to sign up just to do a quick calculation.
What we measured
We check every product on this page once a day and record whether it still answers.
A free online calculator that solves linear programming problems using the simplex method with step-by-step tableau iterations.
What we measured
We check every product on this page once a day and record whether it still answers.
A free calculator for computing high school, college, and cumulative GPA from entered grades and credit hours.
What we measured
We check every product on this page once a day and record whether it still answers.
A free, no-signup collection of online calculators and productivity tools, from GPA to unit converters.
What we measured
We check every product on this page once a day and record whether it still answers.
Splits shared bills among friends and works out the fewest payments needed to settle up, entirely on-device with no account; supports 150+ currencies and 11 languages.
What we measured
We check every product on this page once a day and record whether it still answers.
A free site with 140+ calculators covering finance, health, education, and business.
What we measured
We check every product on this page once a day and record whether it still answers.
A free collection of 59 browser-based calculators and utilities across health, SEO, and everyday tasks.
What we measured
We check every product on this page once a day and record whether it still answers.
A free set of GPA, CGPA, and grade conversion calculators for students.
What we measured
We check every product on this page once a day and record whether it still answers.
A boat loan calculator that shows monthly payments and affordability based on price, term, and credit.
Watch out · No sign-up required.
What we measured
We check every product on this page once a day and record whether it still answers.
A free calculator site (finance, health, math, construction) that shows the underlying formula and worked example, not just an answer.
What we measured
We check every product on this page once a day and record whether it still answers.
A free French-language site offering 88 calculators with step-by-step explanations.
What we measured
We check every product on this page once a day and record whether it still answers.
A free Indonesian relationship-duration calculator that accounts for leap years and time zones.
What we measured
We check every product on this page once a day and record whether it still answers.
A free set of 30 browser-based calculators (loans, BMI, mortgages, etc.) with no signup or data upload.
What we measured
We check every product on this page once a day and record whether it still answers.
207 free browser-based calculators for manufacturing and industrial work, in 10 languages.
What we measured
We check every product on this page once a day and record whether it still answers.
Digital crop planning and profit calculator for farmers and gardeners.
What we measured
We check every product on this page once a day and record whether it still answers.
Free date/age/business-day calculator with holiday-aware calculations.
What we measured
We check every product on this page once a day and record whether it still answers.
Conversational carbon footprint calculator that lets you offset emissions with verified carbon credits.
What we measured
We check every product on this page once a day and record whether it still answers.
Private, offline zakat calculator covering wealth, Ushr and Fitr with sourced rulings, bilingual English/Urdu.
Watch out · Runs entirely in the browser with no account or server.
What we measured
We check every product on this page once a day and record whether it still answers.
Chinese-language collection of free, no-login browser tools spanning quizzes, calculators, image processing and dev utilities.
What we measured
We check every product on this page once a day and record whether it still answers.
A Windows tray app showing live battery percentages for connected Bluetooth and wireless devices.
Watch out · Windows only.
What we measured
We check every product on this page once a day and record whether it still answers.
A free collection of 10 fitness calculators (calories, macros, BMI, and more) with no sign-up required.
What we measured
We check every product on this page once a day and record whether it still answers.
A calculator for estimating your salary.
What we measured
We check every product on this page once a day and record whether it still answers.
Free collection of 60+ chemistry calculation/reference tools with no signup or tracking.
Watch out · No tracking.
What we measured
We check every product on this page once a day and record whether it still answers.
A calculator app that also solves equations.
What we measured
We check every product on this page once a day and record whether it still answers.
A free collection of calculators for finance, health, education, construction, and travel — BMI, GPA, salary, loans, Zakat, fuel costs, concrete — with no account required.
What we measured
We check every product on this page once a day and record whether it still answers.
A free collection of everyday online conversion, calculation, and utility tools — unit converters, finance calculators, JSON formatting, word counting — with no signup required.
What we measured
We check every product on this page once a day and record whether it still answers.
Sells a paid step-by-step guide on how to buy, fix, and flip undervalued websites for profit, with a bonus valuation calculator.
Watch out · Sales-page framing around large profit multiples ('$800 to $6,000') is typical of income-claim products.
What we measured
We check every product on this page once a day and record whether it still answers.
A free directory of online calculators for finance, health, fitness, time, date, and everyday utility calculations, aimed at individuals in India.
What we measured
We check every product on this page once a day and record whether it still answers.
Generates and validates Italian tax codes (Codice Fiscale) from personal details online instead of calculating them by hand. A general utility for admin, healthcare, business or school paperwork.
What we measured
We check every product on this page once a day and record whether it still answers.
What we measured
We check every product on this page once a day and record whether it still answers.
What we measured
We check every product on this page once a day and record whether it still answers.
What we measured
We check every product on this page once a day and record whether it still answers.
What we measured
We check every product on this page once a day and record whether it still answers.
What we measured
We check every product on this page once a day and record whether it still answers.
What we measured
We check every product on this page once a day and record whether it still answers.
What we measured
We check every product on this page once a day and record whether it still answers.
What we measured
We check every product on this page once a day and record whether it still answers.
A free hub of 200+ online calculators covering math, finance and health, no signup required — a general-purpose calculator site rather than anything specialized.
What we measured
We check every product on this page once a day and record whether it still answers.
Free hub offering a collection of online calculators.
What we measured
We check every product on this page once a day and record whether it still answers.
A grab-bag of 21 free browser calculators, converters and generators with no sign-up — a general utility toolkit, not built for one specific job.
What we measured
We check every product on this page once a day and record whether it still answers.
A free Polish-language calculator that computes daily, weekly, or monthly work hours, subtracting breaks and calculating overtime.
What we measured
We check every product on this page once a day and record whether it still answers.
A free, no-tracking bundle of 15 browser-based calculators — compound interest, BMI, TDEE, tip, password generator and more — running entirely client-side in five languages.
What we measured
We check every product on this page once a day and record whether it still answers.
A free calculator for macros, BMR, TDEE, ideal weight and water intake with no ads or sign-up -- a general fitness tool, not tied to any specific diet program.
What we measured
We check every product on this page once a day and record whether it still answers.
A free calculator for square footage and material costs (flooring, paint, landscaping) — a general area tool useful to DIYers, real estate pros and contractors alike.
What we measured
We check every product on this page once a day and record whether it still answers.
Free EMI, SIP, GST and income-tax calculators plus invoice and payslip generation for India, no signup needed — aimed at freelancers and small businesses doing their own finances.
What we measured
We check every product on this page once a day and record whether it still answers.
A free collection of 10 browser-based everyday utilities like a word counter and QR generator, with nothing stored.
What we measured
We check every product on this page once a day and record whether it still answers.
An engineering utility for calculating trench excavation and material layer volumes for construction jobs.
8 of 125
What we measured
We check every product on this page once a day and record whether it still answers.
A free collection of browser-based fitness and nutrition calculators, including TDEE, one-rep max, and restaurant menu tracking, with no signup required.
What we measured
We check every product on this page once a day and record whether it still answers.
A free suite of calculators (financial, health, math, unit conversion) that runs offline in the browser with step-by-step answers.
What we measured
We check every product on this page once a day and record whether it still answers.
A free calculator that tells college students their current attendance percentage and how many classes they can safely skip.
What we measured
We check every product on this page once a day and record whether it still answers.
Anime tracker that calculates how many actual hours are left in your backlog based on remaining episodes, not just a list.
What we measured
We check every product on this page once a day and record whether it still answers.
Offline mobile app bundling 11 electrical calculators, a reference library, and PDF report generation for electricians on the job site.
What we measured
We check every product on this page once a day and record whether it still answers.
Calculates a seller's real ecommerce profit after marketplace fees, ad spend, and shipping costs, instead of estimating margins from gross revenue alone.
What we measured
We check every product on this page once a day and record whether it still answers.
A set of 7 free betting calculators covering parlay, arbitrage, hedge, Kelly staking, and odds conversion.
What we measured
We check every product on this page once a day and record whether it still answers.
A privacy-first collection of 21+ free browser calculators and converters offered in 8 languages.
Watch out · Available in 8 languages; also includes 16 in-depth tech reviews with comparison tables.
8 of 66
What we measured
We check every product on this page once a day and record whether it still answers.
A free toolbox of calculators, visa/expat guides, and file converters that requires no signup and runs in the browser.
What we measured
We check every product on this page once a day and record whether it still answers.
A free collection of 50+ browser-based tools for compressing images, merging PDFs, generating QR codes, and calculating GST, EMI, SGPA, or attendance, with no signup or file uploads required.
What we measured
We check every product on this page once a day and record whether it still answers.
A calculator that estimates the revenue value of your Google Maps direction-request clicks.
What we measured
We check every product on this page once a day and record whether it still answers.
A free library of over 100 browser calculators, converters and utilities spanning finance, health, SEO and text tasks, no login needed. A general toolbox site, not built for any one profession.
What we measured
We check every product on this page once a day and record whether it still answers.
A set of free calculators, trade-value tools, and guides for making decisions in popular Roblox games.
What we measured
We check every product on this page once a day and record whether it still answers.
A set of free legal and tax calculators where every figure is cited directly to the underlying statute.
What we measured
We check every product on this page once a day and record whether it still answers.
A free set of no-signup personal finance calculators (budget, debt payoff, savings, compound interest) paired with plain-language explainer articles.
What we measured
We check every product on this page once a day and record whether it still answers.
A free calculator showing today's astrological planetary hours and ruling planet for any location.
5 of 7
What we measured
We check every product on this page once a day and record whether it still answers.
A free suite of 70+ browser-based financial calculators that run locally without signup.
What we measured
We check every product on this page once a day and record whether it still answers.
An offline financial calculator for Indian users covering SIP returns, EMIs, fixed deposits, and GST, with no login or data collection.
What we measured
We check every product on this page once a day and record whether it still answers.
Free everyday calculators — zakat, BMI, age, currency, Hijri date, loan/EMI, water intake, percentage and more — in English, Urdu, Arabic, Hindi, French and others with full RTL support, installable as an offline app.
What we measured
We check every product on this page once a day and record whether it still answers.
What we measured
We check every product on this page once a day and record whether it still answers.