Paint Estimator

Use our free paint coverage calculator to find out how much paint you need for your house. Calculate paint and primer for rooms with windows and doors.

Wall Area

Paint Details

About Paint Estimator

Paint Calculator — Estimate the total liters or gallons of paint and primer needed for your interior or exterior walls. Ensure you buy the right amount by deducting doors and windows from the total area.

How to use the Paint Estimator

  1. Enter the total wall area to be painted.
  2. Enter the total area of doors and windows to deduct.
  3. Input the number of coats required (usually 2 for paint, 1 for primer).
  4. Specify the paint coverage (sq.ft per liter or gallon) based on your paint brand.
  5. Click Calculate to get the required amount of paint.

FAQs

How many gallons of paint for one room?
On average, a standard 12x12 foot room with an 8-foot ceiling requires about 1.5 to 2 gallons of paint for two coats on the walls, not including the ceiling or trim.
How many coats of paint are needed?
It is generally recommended to apply two coats of paint for a durable and even finish. If you are painting over a dark color with a lighter one, you may need a coat of primer followed by two to three coats of paint.

About Paint Estimator

Paint Calculator — Estimate the total liters or gallons of paint and primer needed for your interior or exterior walls. Ensure you buy the right amount by deducting doors and windows from the total area.

How to use the Paint Estimator

  1. Enter the total wall area to be painted.
  2. Enter the total area of doors and windows to deduct.
  3. Input the number of coats required (usually 2 for paint, 1 for primer).
  4. Specify the paint coverage (sq.ft per liter or gallon) based on your paint brand.
  5. Click Calculate to get the required amount of paint.

FAQs

How many gallons of paint for one room?
On average, a standard 12x12 foot room with an 8-foot ceiling requires about 1.5 to 2 gallons of paint for two coats on the walls, not including the ceiling or trim.
How many coats of paint are needed?
It is generally recommended to apply two coats of paint for a durable and even finish. If you are painting over a dark color with a lighter one, you may need a coat of primer followed by two to three coats of paint.