About HardHat Calc
HardHat Calc is 40 field calculators built by people who order the material. Concrete, stone, asphalt, pipe trench, pavers, topsoil, demolition and more, each one set up the way a foreman actually thinks about the job: dimensions in, tons and yards and truck loads out.
How it works
- Everything runs on your phone. It works in the hole, in the truck, and in the basement with no signal.
- No account, no login, no ads. Saved jobs stay on your device.
- Every calculator shows its assumptions. Change the factors if your spec or supplier says different.
Pro
A one-time Pro unlock is coming: unlimited saved jobs, PDF share with your company name on it, and your own unit prices so every calculator also prices the job. The calculators themselves stay free.
Accuracy
These are planning numbers built on common industry factors. Confirm quantities against your supplier, your spec, and site conditions before you order. If a factor looks wrong for your area, change it in the calculator.
Who makes this
HardHat Calc is made by HardHatOps, part of Iron & Oak, from Rochester, New York. We build software for crews and the offices behind them.