How to use
- 1
Enter the room length, width and wall height in feet.
- 2
Enter the number of doors and windows and coats.
- 3
Read the paintable area, gallons needed and cost.
When to use it
Bedroom repaint
Enter the room size and two coats before going to the store.
Ceiling too
Switch to walls and ceiling to buy both colors at once.
Budgeting a project
Add the price per gallon for a cost estimate.
Good to know
- A gallon covers about 350–400 sq ft per coat.
- New drywall or a big color change usually needs two coats plus primer.
- Round up and buy quarts for small remainders.
FAQ
How much paint for a 12×12 room?
With 8 ft walls, one door and two windows, roughly 1 gallon per coat.
Is the ceiling included?
Choose "Walls and ceiling" to add it.
Why does coverage vary?
Texture and porous surfaces absorb more paint.