Paint Calculator

A gallon of paint covers about 350-400 sqft. A typical 12x12 room with 8ft ceilings needs about 1.5 gallons for one coat or 3 gallons for two coats.

Use primer when painting over dark colors, new drywall, stains, or switching between paint types. Self-priming paints can skip this step for minor color changes.

Most colors need 2 coats for full coverage. Light over dark or dark over light may need 3 coats. Quality paints with high pigment may only need 1 coat.

The Paint Calculator is a free online tool that lets you calculate paint needed for rooms with coverage estimates and cost breakdown. It is part of NexTool's collection of free tools designed to help you work faster and more efficiently.

Using the Paint Calculator is simple: visit the tool page, enter your data or input into the provided fields, and get instant results. No downloads, installations, or sign-ups are required. The tool runs directly in your web browser for maximum convenience.

Yes, the Paint Calculator is 100% free to use with no limitations. There is no registration required, no daily usage caps, and no hidden fees. You can use it as many times as you need.

The Paint Calculator uses industry-standard formulas and algorithms to deliver reliable results. While the tool is designed for accuracy, results should be used as estimates and guidance. For critical decisions, always consult a qualified professional.

Yes, the Paint Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. Simply open NexTool in your mobile browser and navigate to the tool — no app download required.