Calculator Search
Search and find calculators
Calculate exactly how much paint you need for your walls to avoid waste or shortages.
Choose from 5 specialized versions of this calculator, each optimized for specific use cases and calculation methods.
Specialized calculation methods for specific needs
A waste factor accounts for paint that will be spilled, left in containers, or used for touch-ups. We recommend 10-15% for most projects.
No, our calculator allows you to enter window and door dimensions which are automatically subtracted from the wall area.
For most projects, two coats are standard. However, if painting over a dark color with a light one, you may need three or more coats. New drywall often requires a primer plus two coats.
Explore more construction calculators