Free Construction Calculators
Quick, accurate estimates for gravel, concrete, paint, and more. Built for contractors and builders.
Construction Calculators
Material Volume
Surface Area
Structural
Your Go-To Construction Calculator
NumberPunch provides free, instant construction calculators designed for professionals in the field. Whether you are estimating gravel for a driveway, calculating concrete for a foundation, or figuring out how much paint you need for a room, our tools give you accurate results in seconds.
Every calculator is built mobile-first so you can get answers on the job site without pulling out a laptop. Enter your dimensions, choose your materials, and get volume, weight, and cost estimates that you can copy, text to your supplier, or print for your records.
Use the standard calculator above for quick math, or tap any of the specialized construction calculators to get detailed material estimates with preset dimensions for common projects like driveways, patios, and walkways.