Skip to main content
Utilnivo

Everyday Tools

Utilnivo

Paint Calculator

Estimate gallons of paint for walls and optional ceiling.

No registration
  • On your device

Browse more in Everyday Tools or all tools.

Private on your device

Your information stays on your device and is not uploaded.

Related tools

Enter room dimensions, door and window counts, coats, and coverage per gallon to estimate paintable square footage and gallons needed. Processing runs on your device.

How to use this tool

1. Enter room length, width, and wall height in feet. 2. Toggle ceiling if painting it. 3. Enter door and window counts and number of coats. 4. Adjust coverage per gallon if your paint label differs from 350 sq ft. 5. Click Calculate and round up when buying.

Worked example

Example: a 12×10 ft room with 8 ft walls, one door, one window, and two coats needs roughly 1–2 gallons at 350 sq ft/gal coverage.

How it works

Estimates wall (and optional ceiling) square footage, subtracts standard door and window areas, and divides by coverage per gallon and number of coats to suggest gallons of paint. Runs on your device.

Limitations

Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.

Privacy and file handling

Your data stays on your device and is not uploaded.

FAQ

Frequently asked questions

Is Paint Calculator free?

Yes. It is free to use and you do not need to sign in or create an account.

Is my data private?

See the privacy note on this page. Many tools run on your device; some heavier file tools may use secure temporary processing when required.

Can I use Paint Calculator on mobile?

Yes. Open this page on your phone or tablet, enter your inputs, and use the on-screen controls.

Related pages

Page last reviewed: