Free paint calculator

Buy the right amount of paint.

Enter a few simple room measurements and get a clear estimate in seconds.

No sign-up
Metric and imperial
Instant result

Step 1 of 3

Measure your room

Room length m Room width m Wall height m

Step 2 of 3

Tell us about the surface

Wall surface Number of coats Doors Uses a standard-size estimate Windows Uses a standard-size estimate

Advanced settings (optional)

Paint label coverage m²/L

You usually do not need to change this. If your paint can or product page lists a coverage rate, enter that number here.

Include the ceilingUses the room length and width already entered, with the same number of coats. Estimate wall primerUseful for new, bare, patched or stained walls, or a major colour change.

Estimate paint cost

Optional. Enter the actual pack size and price of the paint you are considering.

Currency Pack size L Price per pack RM Leave blank if you do not need a budget estimate.

Changing the currency converts the entered price using the latest available reference rate.

Step 3 of 3

Estimated paint needed

8.7 L 2.3 US gal

43.7 m² paintable area 10% extra included

Buy at least 8.7 litres in total. Check the label because real coverage varies by paint and surface.

Suggested purchase

2 × 5 L cans

Practical planning range: 8.7–9.6 L

Simple by design

How the estimate works

Measure

Enter the length, width and wall height of one rectangular room.

Adjust

Choose the wall condition and number of coats. Doors and windows are deducted.

Check

Use the optional coverage setting only when your paint label provides one.

New practical guide

How far does one litre of paint go?

Compare typical coverage for smooth, porous, rough and masonry surfaces, then see the calculation with real examples.

Read the coverage guide

Room-by-room examples

How much paint does a room need?

See calculated examples for a small bedroom, medium bedroom and living room, including doors, windows, two coats and practical pack sizes.

See room examples

A practical estimate

Simple for beginners, adjustable when needed.

PaintSimple automatically chooses a practical coverage rate from the wall surface you select. Paint product, texture, surface condition and application method can change real coverage, so an optional label setting is available for users who need it.