# OnSite Calculator

> Free construction calculators and reference charts for contractors, tradespeople, and estimators at https://onsitecalculator.com.

All tools are free, require no signup, and run entirely in the browser. Results are estimates intended to assist with material takeoffs and project planning. Calculators cover concrete, paint, gravel, mulch, roofing, drywall, and flooring. Reference charts cover fraction-to-decimal conversion and lumber dimensions.

## Calculators

- [Concrete Slab Calculator](https://onsitecalculator.com/calculators/concrete-slab/): Calculates concrete volume in cubic yards for slabs, pads, and footings based on length, width, and thickness
- [Paint Calculator](https://onsitecalculator.com/calculators/paint/): Estimates gallons of paint and primer for interior and exterior walls, ceilings, doors, and windows
- [Gravel Calculator](https://onsitecalculator.com/calculators/gravel/): Estimates cubic yards and tons of gravel for driveways, walkways, and fill based on area, depth, and gravel type
- [Mulch Calculator](https://onsitecalculator.com/calculators/mulch/): Computes cubic yards, cubic feet, and bags of mulch for landscape beds based on area and depth
- [Roofing Calculator](https://onsitecalculator.com/calculators/roofing/): Estimates shingle bundles, squares, ridge cap, starter strip, underlayment, and cost from roof area or footprint with pitch
- [Drywall Calculator](https://onsitecalculator.com/calculators/drywall/): Estimates sheets, joint compound, tape, screws, weight, and cost with quick area, room-by-room, and whole-house takeoff modes
- [Flooring Calculator](https://onsitecalculator.com/calculators/flooring/): Measures square footage and estimates boxes, planks, and cost with waste factor for LVP, laminate, hardwood, and tile

## Reference Charts

- [Fraction to Decimal Chart](https://onsitecalculator.com/charts/fraction-to-decimal/): Interactive conversion table from fractional inches to decimal and metric (mm) equivalents, from 1/64 to 1 inch
- [Lumber Dimensions Chart](https://onsitecalculator.com/charts/lumber-dimensions/): Nominal vs actual lumber sizes, weight per foot, and cost estimates for common dimensional lumber and beam sizes

## Optional

- [All Calculators](https://onsitecalculator.com/calculators/): Hub page listing every available calculator with descriptions
- [All Charts](https://onsitecalculator.com/charts/): Hub page listing all reference charts
- [About](https://onsitecalculator.com/about/): Background on the site and its purpose
- [Privacy Policy](https://onsitecalculator.com/privacy/): Data handling and privacy information