Home Renovation Tools

Paint Calculator

Calculate paint quantity needed for walls and ceilings.

Tool Type
Calculator
Skill Level
Beginner
Difficulty
🧮

Paint Calculator

About This Tool

Professional Paint Calculator - Accurate Paint Quantity Estimation

Our professional paint calculator helps you determine exactly how much paint you need for any interior or exterior painting project. Whether you're planning to refresh a single room or tackle your entire home, accurate paint calculations save you time, money, and multiple trips to the store.

How to Use the Paint Calculator

  1. Measure Your Room: Enter the room length, width, and height in feet
  2. Count Openings: Include the number of doors and windows to subtract from total area
  3. Choose Options: Select whether you're painting the ceiling and how many coats you need
  4. Set Coverage Rate: Use 350 sq ft per gallon for most quality paints, or check your paint can label
  5. Add Waste Factor: Include extra paint for touch-ups and application waste

Paint Coverage Guidelines

  • Premium Paints: 400-450 sq ft per gallon
  • Standard Quality: 350-400 sq ft per gallon
  • Budget Paints: 250-350 sq ft per gallon
  • Primer: 200-300 sq ft per gallon

Professional Tips for Paint Calculation

Standard Door Size: 20 square feet
Standard Window Size: 15 square feet
Waste Factor: Always add 10-15% extra for touch-ups and waste

Related Paint Products

Once you know how much paint you need, explore our extensive selection of premium paints and coatings. We carry:

Additional Painting Tools

Complete your painting project planning with these helpful tools:

Paint Finish Selection Guide

Flat/Matte: Best for ceilings and low-traffic areas
Eggshell: Ideal for living rooms and bedrooms
Satin: Great for kitchens, bathrooms, and high-traffic areas
Semi-Gloss: Perfect for trim, doors, and moisture-prone areas
Gloss: Excellent for doors, trim, and areas requiring frequent cleaning

How to Use

Enter your room dimensions, count doors and windows, select coating options, and choose your waste factor. The calculator will determine exact paint quantities needed, including primer if required.

Tool Details

Type: Calculator
Category: Home Renovation Tools
Complexity: Basic
Skill Level: Beginner
Units: Square feet

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