Optracs tools: free calculators for contractors
The numbers you work out every week.
Free to use. No sign-in. Nothing you type here is saved. Download it if you want to keep it.
Each result is an estimate from the numbers you enter. Check your own figures.
The tools
- Markup and marginPrice a line from its cost at the margin or markup you want, or see the margin in a price you already have.
- Roof squares from pitchTurn a footprint and a pitch into roof area and squares.
- Concrete volumeCubic yards for a slab, footings and walls.
- Paver base and excavationThe base to order and the soil to dig out under a paver patio or walk.
- Paint by coatsGallons for the walls, ceilings or exterior, by coats and the coverage on your can.
- Labor burden and overheadWhat an hour of a person's work costs you, with overhead on top.
Do it on the real job
Everything about the job in one no-BS app.
Built for contractors in every trade.
One plan. Every feature we sell, included. No charge per person.
$129 a month, or $1,290 a year, which is 2 months free, for a company that subscribes by December 31, 2026. From January 1, 2027, a new company starts at $179 a month, or $1,790 a year.
Prices are in US dollars.