Paint Calculator
Whether you are planning to repaint your bedroom or painting all rooms in your brand new house, this paint calculator is here to help you determine how much paint you need. You will be able to customize the paint estimation basing on the amount of openings or paint coats. You can also calculate the final cost of paint required!
Formulas used
Total room area
2 (Room length Room width + Room length Room Height + Room width Room Height) - (Room length Room width) 2
Total doors area
(Door height Door width) Number of doors
Total windows area
(Windows height Windows width) Numbers of windows
Total wall area
Total room area - Total doors area - Total windows area
Amount of paint
(Total wall area / Paint efficiency) * Number of coats
Total cost
Amount of paint * Cost per unit
Works best for
Paint calculator helps you calculate the amount and cost of paint needed to paint the walls of a room.
Or create your custom calculator edit