Paint Calculator

Calculate paint quantity, costs & generate shopping lists

Free • Multiple Rooms • Cost Comparison • Shopping List

Step 1: Room Details

Room Name

Length

Width

Height

Door Size

Custom Door Size (sq ft)

Number of Doors

Number of Windows

Window Size

Custom Window Size (sq ft)

Include Ceiling in Calculation

Step 2: Paint Specifications

Paint Type

Paint Finish

Custom Coverage (sq ft per gallon)

Surface Type

Number of Coats

Color Name (Optional)

Color Change

Tip: Dark to light colors typically need primer + 2-3 coats for full coverage.

Include Primer

Add 10% Waste Factor (Recommended)

Step 3: Cost Estimation

Paint Brand

Brand Name (Optional)

Price per Gallon ($)

Copied to clipboard!

Your Results

Gallons Needed

Total Area (sq ft)

Total Cost

Calculation Details

Coverage Rate: sq ft per gallon

Waste Factor:

Estimated Time: hours

Brand Price Comparison

Compare costs across different paint brands:

Complete Shopping List

Why Use Our Paint Calculator?

Accurate estimates • Cost savings • Professional results

Accurate Calculations

Get precise paint quantities for your project

Save Money

Compare brands and avoid overbuying

Shopping List

Get a complete list of supplies needed

Multiple Rooms

Calculate entire house projects easily