PAINT CALCULATOR

Paint Quantity Calculator

Use the Interior Tailor paint quantity calculator to estimate how much paint you may need for your next painting project.

Enter your room dimensions, doors, windows, ceiling measurements, number of coats and expected paint coverage. The calculator uses these details to estimate the paintable area and the amount of paint required.

Start by entering your measurements below.

Understanding Your Paint Estimate

Your result is based on the measurements and paint information you provide. The calculation can account for wall area, openings such as doors and windows, ceiling area, number of coats, coverage and waste allowance.

For the most useful result, use the coverage information provided on the label or technical documentation of the paint you intend to purchase. Actual paint consumption may differ because surfaces can absorb paint differently and application methods can affect coverage.