Measure the project
Enter real dimensions with imperial or metric units. Split irregular shapes into simple sections.
Built for the job before the job
Measure once.
Estimate right.
Fast, transparent material calculators for homeowners, contractors and serious DIYers. Every result shows the math—and every assumption stays in your control.
No sign-upImperial + metricRuns in your browser
12 ft4 in20 ft
Order estimate3.26 yd³includes 10% waste
60 lb bags196
Approx. weight6.4 tons
20job-ready calculators
5project categories
0measurements uploaded
100%free to use
01 / POPULAR TOOLSStart with the project
Start with the project
in front of you.
Materials are expensive. A useful estimate should show more than one mystery number.
01
Concrete Calculator
Estimate cubic yards, ready-mix volume, weight and cost for a rectangular concrete pour.
Yards, bags & cost02
Gravel Calculator
Estimate gravel volume, weight and delivered material cost for a rectangular area.
Tons, yards & cost03
Paint Calculator
Estimate wall paint gallons from room size, openings, coats and product coverage.
Gallons, coats & cost04
Flooring Calculator
Estimate flooring area, waste, boxes and material cost for a rectangular room.
Area, boxes & cost05
Roofing Calculator
Estimate sloped roof area, roofing squares and bundles for a simple gable roof.
Roof area & squares06
Mulch Calculator
Estimate cubic yards and 2 cu ft bags of mulch for a landscape bed.
Bags, yards & cost02 / THE BUILDCALC STANDARDUseful numbers.
Useful numbers.
Visible assumptions.
Every tool follows the same practical workflow so you can check the result before you order.
Adjust the assumptions
Control waste, coverage, density, bag yield and price instead of accepting hidden defaults.
Verify before buying
Review the formula and confirm product-specific values with the manufacturer or supplier.
03 / CATEGORIESFrom foundation
From foundation
to finish.
A focused library for material quantities, coverage, packaging and preliminary cost.
04 / EDITORIAL STANDARDCheckable by design,
Checkable by design,
not a black box.
Google can find a page; people still need a reason to trust it. BuildCalc publishes the formula, assumptions, limitations and a worked example with every calculator.
Transparent calculation method
Measurements are converted to consistent internal units before geometry, waste and whole-package rounding are applied. Read the complete calculation methodology.
Maintained by EasyTool.me
BuildCalc is published by EasyTool.me for homeowners, contractors and DIY project planning. See who maintains the calculators or report a reproducible correction.
Every result is a preliminary quantity estimate. Product coverage, density, structural requirements, local code and supplier order rules must be verified before purchase. Site and calculator guidance last materially reviewed August 16, 2026.
READY WHEN YOU AREPut a number
Put a number
on the next project.
Choose a calculator, enter the measurements, and get an editable planning estimate in seconds.
Browse all calculators →