1. What is the Interior Paint Calculator?

The Interior Paint Calculator estimates the amount of paint needed to cover interior walls based on the total square footage of the area to be painted.

2. How Does the Calculator Work?

The calculator uses the standard paint coverage formula:

Where:

• 350 sq ft/gal — Standard coverage rate for interior paint
• Interior Sq Ft — Total square footage of walls to be painted

Explanation: This calculation assumes one gallon of paint covers approximately 350 square feet of wall space with one coat.

3. Importance of Accurate Paint Calculation

Details: Proper paint estimation helps avoid purchasing too much or too little paint, saving time and money on your painting project.

4. Using the Calculator

Tips: Measure the length and height of each wall to calculate total square footage. Don't forget to subtract areas not being painted (windows, doors).

5. Frequently Asked Questions (FAQ)

Q1: Does this account for multiple coats?
A: No, this calculates for one coat. Multiply the result by the number of coats you plan to apply.

Q2: How do I calculate square footage?
A: Measure wall length and height, multiply to get area for each wall, then sum all wall areas.

Q3: What if my walls have texture?
A: Textured walls may require 10-20% more paint than smooth walls.

Q4: Does paint type affect coverage?
A: Yes, higher quality paints often have better coverage. Check the manufacturer's specifications.

Q5: Should I buy extra paint?
A: It's recommended to purchase 10% extra for touch-ups and to ensure color consistency.