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Paint Calculator

This paint calculator will help you estimate the amount of paint needed to paint a room, per coat. For example, if the calculator indicates you need 2 gallons, then you will need to order 4 gallons for two coats. Contact [email protected] or 973-863-2639 for painting project assistance.

These are some common rules of thumb:

  • 1 Gallon of wall paint typically covers 400 square feet in one coat (or all 4 walls in a standard 12' x 12' room)
  • 1 Quart will cover about 100 square feet (or a 10' x 10' area)
  • 4 Quarts are in 1 Gallon; 2 Pints are in 1 quart; 4 sample jars are in 1 Pint


Enter the Dimensions of your Room, to Estimate the Amount of Paint Required:

Room Length
Room Width
Room Height
Height of baseboard  
How Many?
Width of Trim (inches)
Height (inches)
Width (inches)
Square feet per gallon  

This calculator will help you determine the amount of paint you need. Remember it is calculating square footage based on your measurements. Please contact [email protected] or call us at
973-863-2639 if you need assistance determining the amount or type of paint for your project.