How Much Paint?

You've picked your colour, but how many litres will you need for your room? Calculate the wall area of the room; you'll need one litre for 12 square metres.

To determine the wall area, multiply the height of each wall by its width (don't subtract for doors and windows unless they take up more than half the wall); total the figures for the walls. Add 10 percent for future touch-ups. For two coats, double the number.