Paint Coverage Calculator
Work out how many gallons of paint you need based on wall area, number of coats, and the coverage rating on the can.
Inputs explained
- Wall Area (sq ft) — Total surface area to paint, in square feet. Measure wall height × width and add them up.
- Coats — How many coats you plan to apply. Two coats is typical for good coverage.
- Coverage / Gallon — Square feet one gallon covers — check the paint can. A common value is 350 sq ft per gallon.
How to use it
- Fill in the fields above — each input has a hint describing exactly what to enter
- Press Calculate to get your result instantly, right on this page
- Copy the result, save the tool to favorites, or share and embed it anywhere
Understanding the result
Example: 400 sq ft, 2 coats, 350 sq ft/gallon needs about 2.3 gallons.
Frequently asked questions
Is the Paint Coverage Calculator free to use? Yes — it is completely free, with no sign-up, no download and no usage limits. You can use it as often as you need.
Is my data private? Yes. The calculation runs entirely in your browser — the values you enter are never sent to our servers, stored or shared with anyone.
What information do I need? Just the following: Wall Area (sq ft), Coats, Coverage / Gallon. Each field includes a hint explaining exactly what to enter.
Can I use it on my phone? Yes — the tool is fully responsive and works on any device, and the same calculator is available in the EasyWorkCalcs mobile app.
Privacy
Everything you enter into the Paint Coverage Calculator is processed entirely in your browser. Nothing is uploaded, stored or shared — your data stays on your device.