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Paint Coverage Calculator

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Estimate how many cans of paint you need from area, coats, and label coverage.

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Client-Side
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Use the same area unit as your paint can label (sq ft or m²).

Paint needed

Buy (rounded up)
3 units
Exact units needed2.51
Paintable area (with waste)880

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<iframe
  src="https://tools.town/embed/paint-coverage-calculator/"
  width="100%"
  height="600"
  style="border:none; border-radius:12px;"
  loading="lazy"
  title="Paint Coverage Calculator">
</iframe>

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How to Use

  1. 1 Enter surface area in the same units as the can label
  2. 2 Set coats and coverage per can
  3. 3 Adjust waste % if needed
  4. 4 Buy the rounded-up unit count

Features

  • Multi-coat support
  • Waste allowance
  • Exact + rounded-up units
  • Client-side

Why it Matters

DIY painters overbuy or underbuy when they ignore coats and waste. This does the can math.

★★★★★

Figure out how many paint cans to buy from wall area, coats, and the coverage printed on the label.

Frequently Asked Questions

Sq ft or m²?
Match whatever unit is printed on the paint can.
What waste %?
10% is a common default for cuts and touch-ups.
Ceilings and doors?
Measure each surface and add the areas, or run the tool twice.
📖

Want to understand the math?

Browse all guides →
Estimate Paint Cans for a Room
paint

Estimate Paint Cans for a Room

Measure wall area, set coats and can coverage, and buy the rounded-up number of paint units.

16 Aug 2026

5 min read

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