Home Improvement Calculators
Free calculators for paint, concrete, flooring, framing, roofing and renovation costs. Work out what a job needs — and what it will cost — before you buy anything.
- Paint Calculator
- Wall Paint Calculator
- Drywall Calculator
- Square Footage Calculator
- Room Area Calculator
- Flooring Calculator
- Tile Calculator
- Concrete Calculator
- Mulch Calculator
- Topsoil Calculator
- Gravel Calculator
- Lumber Calculator
- Fence Calculator
- Deck Calculator
- Roofing Calculator
- HVAC Size Calculator
- Solar Panel Calculator
- Kitchen Remodel Cost Calculator
- Bathroom Remodel Cost Calculator
- Home Renovation Cost Calculator
Nothing matched
Try a shorter word — “paint”, “roof”, “cost”.
Everything runs in your browser
No account, no upload, no waiting. Nothing you type is sent to a server — the maths happens on your own device.
Metric and imperial
Feet and inches or metres and millimetres, whichever you measured in. Results come with the waste allowance trades actually use.
An estimate, not a quote
These give you a materials list and a realistic budget so you can check a quote before you sign it. Prices vary by region and by supplier.