easyhometasks

Free tool

Paint calculator

How much paint do you need? Enter the room, the doors and windows and how many coats, and we'll work out the gallons. It works without JavaScript and nothing is stored.

Walls

2 gallons

Wall area
334 sq ft
Paint needed
1.9 gal

Allows about 20 sq ft per door and 15 sq ft per window. Rounded up to the nearest quart; buying a gallon is often cheaper than three quarts. Add primer for patches, bare drywall or big color changes.

Getting it right

  • Measure walls, not floors. Use the length of each wall and the height from floor to ceiling.
  • Two coats give a more even finish, and you usually need them when changing color.
  • Keep a little extra for touch-ups, labeled with the room and date.
  • Trim and doors are usually a different finish. A quart covers the trim in most rooms.

Next: paint a room, start to finish and choose the right finish.