Paint Cost Calculator

How many gallons and the cost to paint

Advanced — coverage & price
$
Total paint cost
$0
0 gallons

Paint Cost Calculator — guide & how to use

What it does

The Paint Cost Calculator tells you how many gallons of paint you need and the total cost for your project. Enter your wall area, the number of coats, and your paint price — calculated privately in your browser, free. Great for rooms, whole-home repaints, and renovation budgeting.

How to use it

  1. Enter the total wall area in square feet (room perimeter × ceiling height).
  2. Enter the number of coats (usually 2).
  3. Open Advanced to set coverage per gallon and your paint price.
  4. Read the gallons needed and total cost.

How to embed this tool on your website

No account, no coding. Copy the embed code and paste it where you want it to appear:

<iframe src="https://snaptoolsuite.com/paint-cost-calculator/?embed=1"
  style="width:100%;max-width:560px;height:820px;border:0;"
  title="Paint Cost Calculator" loading="lazy"></iframe>
<p>Free <a href="https://snaptoolsuite.com/paint-cost-calculator/">Paint Cost Calculator</a> by Snap Tool Suite</p>
2 Paste it on your page
3 It just works

See it live: view a real embed example →

Frequently asked questions

How much paint do I need?

Gallons = area × coats ÷ coverage (~350 sq ft/gal), rounded up. This tool multiplies by your price for total cost.

How much does a gallon cover?

About 350–400 sq ft per coat on smooth surfaces; less on rough or porous walls.

Is it really free?

Yes. 100% free, everything runs in your browser.

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🔒 Everything is calculated in your browser. We don't store or sell your data.