Paint Quantity and Cost Calculator
Get precise paint estimates for your project in seconds
1. Room Dimensions
2. Doors & Windows
Standard sizes (21 sq ft per door, 12 sq ft per window) are used for calculations.
3. Paint Details
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877-796-5799Frequently Asked Questions
How accurate is this paint calculator?
Our calculator provides professional-grade accuracy when you input correct measurements. It accounts for multiple coats, door/window deductions, and different paint coverage rates.
How do I calculate how much paint I need?
Measure the length and height of each wall, subtract areas not being painted (like windows/doors), then divide total area by your paint’s coverage rate (usually 350-400 sq ft per gallon). Our calculator automates this process.
Does the calculator account for multiple coats?
Yes! Simply enter how many coats you plan to apply and we’ll calculate the total paint needed accordingly.
Can I use this for both interior and exterior paint?
Absolutely. The calculator works for any painting project. Just be sure to select the appropriate paint type as coverage rates may differ.
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