Ceiling Paint Calculator

Calculate the amount of paint needed for your ceiling. Enter room dimensions and number of coats for accurate gallon estimates.

Enter Your Measurements

Room Length(ft)

Room Width(ft)

Coats

Results

Paint Needed

0.7

gallons

Ceiling Area

144

sq ft

Cost Estimate

Cost per gallon

per gallon

Estimated Cost

$25.20

Formula

Gallons = (Length × Width × Coats) ÷ 400

How to Use This Calculator

How to Use

1
Enter the room length and width.
2
Set the number of coats (1-2 for ceilings).
3
Ceiling paint coverage estimated at 400 sq ft per gallon.
4
Use flat ceiling paint for best results.

Frequently Asked Questions

What type of paint is best for ceilings?

Flat or matte finish ceiling paint is ideal because it hides imperfections and reduces glare. Ceiling-specific paint is thicker to reduce dripping.

In-Depth Guides

📖

How Much Paint Do You Need? Room-by-Room Guide

Calculate exactly how many gallons of paint you need for any room. Covers wall measurement, door/window deductions, coats, primer, and paint sheen selection.

Related Calculators

Paint Calculator

Exterior Paint Calculator

About This Calculator

This calculator uses the formula: Gallons = (Length × Width × Coats) ÷ 400. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.

Built and maintained by the CalcSmart team. Last updated March 2026.

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