Paint Coverage Converter
Calculate paint needed in liters and gallons from wall area, number of coats, and coverage rate.
Accounts for door and window deductions.
Enter your wall area and number of coats to calculate paint needed.
Paint coverage depends on the paint type and surface texture.
Typical coverage rates:
- Standard interior paint: 10-12 sq m per liter (350-400 sq ft per gallon)
- Primer: 8-10 sq m per liter (300-350 sq ft per gallon)
- Exterior paint: 8-10 sq m per liter (300-350 sq ft per gallon)
The formula:
- Paint needed (liters) = Area (sq m) / Coverage rate × Number of coats
- Paint needed (gallons) = Area (sq ft) / Coverage rate × Number of coats
Unit conversions:
- 1 gallon (US) = 3.785 liters
- 1 sq meter = 10.764 sq feet
- 1 liter covers about 10 sq m = 107.6 sq ft (at standard rate)
Tips:
- Most walls need 2 coats for good coverage.
- Dark-to-light color changes may need 3 coats.
- Textured surfaces use 20-30% more paint.
- Always buy 10% extra for touch-ups and waste.