Paint Calculator
Calculate the exact amount of paint needed for your walls. Get accurate estimates for gallons, coverage, and total cost.
Room Dimensions
Enter your room measurements
Advertisement
Paint Calculator Guide
How to Calculate Paint Coverage
Calculating the right amount of paint for your project is essential to avoid waste and ensure you have enough coverage. Our paint calculator considers room dimensions, doors, windows, paint type, and number of coats to give you accurate estimates.
Paint Coverage by Type
- Latex Paint: Covers approximately 350 square feet per gallon
- Oil-Based Paint: Covers approximately 400 square feet per gallon
- Primer: Covers approximately 300 square feet per gallon
Factors Affecting Paint Coverage
Several factors can affect how much paint you'll need:
- Surface Texture: Rough surfaces require more paint than smooth ones
- Paint Quality: Higher quality paints often have better coverage
- Color Change: Going from dark to light colors may require additional coats
- Application Method: Brush, roller, or spray application affects coverage
Painting Tips
- Always buy 10-15% extra paint to account for touch-ups and waste
- Use primer when changing colors dramatically or painting over stains
- High-quality brushes and rollers improve coverage and finish
- Apply thin, even coats rather than one thick coat
- Allow proper drying time between coats
Cost-Saving Tips
Save money on your painting project with these tips:
- Buy paint in larger quantities for better per-gallon pricing
- Look for sales and promotions at paint stores
- Consider paint and primer in one for some projects
- Properly prepare surfaces to ensure good adhesion and coverage