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A collection of 41 free construction material calculators with inspectable formulas plus five browser-local project guides, keeping quantity math separate from supplier prices, labor, and permits.
FreeNo sign-up
What to know▼
How it works
Each calculator exposes its formula, editable assumptions, ordering rounds, worked examples, and sources; project data stays in the browser.
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A free calculator that converts your lawn, garden bed, or truckload dimensions into cubic yards, bags, or tons of topsoil needed — no sign-up, quick answer for a one-off project.
FreeNo sign-up
What to know▼
How it works
Converts lawn, garden bed, or truckload dimensions into the exact cubic yards, bags, or tons of topsoil needed.
Pricing
Free, no sign-up needed.
Best for
Anyone doing a one-off landscaping or gardening project who needs a quick topsoil estimate.
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Overlays a reference photo's outline on your live iPhone camera so you can line up the exact same shot again, for before/after, fitness or renovation progress photos. Free, no account.
Watch out · iPhone only. Photos never leave the device, per the product's own claim.
FreeNo sign-upNo ads
What to know▼
How it works
Overlays a chosen reference photo's outline on the live iPhone camera viewfinder so the user can move the phone until the edges snap onto the same scene, recreating the same angle and framing.
What's different
Traces the exact contours of a prior photo onto the live camera view instead of relying on rough visual matching.
Pricing
Free, no account, no ads, no in-app purchases.
Best for
People taking recurring before/after shots — fitness progress, plant growth, home renovations, or recreating travel photos.
Watch out
iPhone only. Photos never leave the device, per the product's own claim.
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.
FreeNo sign-up
What to know▼
How it works
Provides 60 free calculators for finance, health, math, construction, conversions and science, each showing its formula and a worked example alongside the result.
What's different
Shows the formula and worked example instead of just a black-box answer.
Pricing
Free, no sign-up.
Best for
People who want to understand how a calculation was reached, not just the result.
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Rates how exposed your specific day-to-day tasks are to AI automation, not just your job title, and gives you a plan — a personal AI-job-risk check.
FreeNo sign-up
What to know▼
How it works
You enter your job title, it pulls the actual tasks that make up that role, you rate how much time you spend on each with a quick tap scale, and it scores your specific AI exposure and gives you a plan.
What's different
Scores exposure at the task level based on how you actually spend your time, rather than scoring by job title alone.
Pricing
Free, no login or signup required.
Best for
Workers who want to know how much of their specific day-to-day work AI can already do, in about 60 seconds.
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A browser-based receipt generator with 100+ templates you fill in and download in three steps, no accounting software needed. Aimed broadly at freelancers, contractors and small sellers, not full bookkeeping.
FreeNo sign-upNothing to install
What to know▼
How it works
A browser-based receipt generator with 100+ customizable templates (modeled after brands like Amazon, Costco, Starbucks) where you pick a template, add details, and download.
Pricing
Free.
Best for
Freelancers, contractors and small sellers who need a quick, professional-looking receipt without accounting software.
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A desktop PDF editor built to stay smooth on huge CAD and construction drawing exports from AutoCAD, Revit and ArchiCAD, running fully offline so drawings never leave your machine.
FreeNo sign-upWorks offline
What to know▼
How it works
A desktop PDF editor for Windows and Mac built to stay smooth on scroll, zoom and pan across heavy AutoCAD, Revit and ArchiCAD exports and project sets of 50-200MB or more. It runs locally on the user's machine.
What's different
Targets the specific failure mode of general PDF tools — stalling and stuttering on dense CAD/construction drawings with heavy vector line work and hatches — and processes files fully offline.
Best for
Architects, structural/civil engineers, MEP professionals and construction teams working with large, heavy drawing sets.
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Lets field-service workers (cleaners, handymen, landscapers, painters, inspectors) fill in a job template with before/after photos and a signature, then send a branded PDF proof-of-work report with GPS and weather stamped in. Works offline, no account needed.
No sign-upWorks offline
What to know▼
How it works
Field-service workers fill in a job template with before/after photos and a signature, then send a branded PDF proof-of-work report with GPS and weather stamped in before leaving the job.
What's different
Works offline and needs no account.
Best for
Cleaners, handymen, detailers, landscapers, pet sitters, inspectors and painters who need proof-of-work for every job.
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A free calculator that estimates how much bitumen a road job needs from your inputs, built for civil engineers and contractors, not software developers, despite the mismatched tags.
FreeNo sign-up
What to know▼
How it works
Estimates the amount of bitumen required for a given road area from your inputs, without needing a sign-up.
Pricing
Free.
Best for
Civil engineers, contractors and road construction professionals estimating materials for project planning and quoting.
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A paid WCAG accessibility audit delivered as a report within 24 hours, no account or install needed. For any site owner who needs a compliance check, not ongoing monitoring.
No sign-upNothing to install
What to know▼
How it works
You submit your website and get back a 16-point WCAG accessibility audit as a styled report within 24 hours.
Pricing
Paid audit; delivered per request rather than as a subscription.
Best for
Site owners who need a one-off compliance check, not ongoing accessibility monitoring.
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Free engineering calculator for civil engineers, paving contractors and quantity surveyors — bitumen quantity, asphalt mix weight, aggregate weight, project volume, material cost and unit conversions, using industry-standard formulas instead of spreadsheets.
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An AI tool that turns a plain-English project description into a material list, cut list, and cost estimate for DIY woodworking.
FreeNo sign-up
What to know▼
How it works
Turns a plain-English project description into a material list, cut list with exact dimensions, hardware list, and cost estimate, with items linked to Amazon for price checking.
Pricing
Free, no credit card, no account.
Best for
Woodworkers, makers, and DIY enthusiasts planning a project.
