Paint Coverage Calculator

Calculate the precise amount of paint needed for your project to avoid buying too much or running short.

Why Use This Calculator?

Accurate paint calculations help you:

• Buy the right amount of paint
• Avoid unnecessary expenses
• Ensure complete coverage
• Plan for multiple coats
• Reduce paint waste

How to Use It

1. Enter room dimensions (length, width, height)
2. Specify number of doors and windows
3. Select surface type (smooth, textured, new drywall)
4. Choose paint type (flat, eggshell, semi-gloss)
5. Indicate number of coats needed
6. Get paint quantity recommendation

Understanding Results

The calculator provides:

• Total wall area to be painted
• Paint needed in gallons/liters
• Number of cans recommended
• Coverage per coat
• Extra amount for touch-ups

Tips for Accurate Measurement

• Measure each wall separately for irregular rooms
• Include trim and ceiling if needed
• Account for all doors and windows
• Consider surface porosity
• Add extra for touch-ups

Common Use Cases

• Room repainting
• New construction
• Accent walls
• Multi-room projects
• Commercial spaces

Frequently Asked Questions

Q: How much extra paint should I buy for touch-ups? A: We recommend adding 10% extra for future touch-ups and corrections.

Q: Do I need primer? A: Yes, for new drywall, dark color changes, or porous surfaces. The calculator will indicate when primer is recommended.

Q: How many coats do I need? A: Typically 2 coats for most colors, but may need more for dark colors or significant color changes.

Technical Notes

• Calculations based on standard paint coverage rates
• Adjustments made for surface texture and paint type
• Includes industry-standard waste factors
• Accounts for standard door/window sizes

Remember: These calculations are estimates. Actual paint needed may vary based on application method, surface condition, and color changes.