Paint Calculator

• Free online paint calculator
• Calculate the paint needed for interior, exterior, and primer based on room dimensions or wall area

1. Open the tool page — no installation needed
2. Choose a mode (by room dimensions or by wall area), then enter length, width, height or wall area, door & window deduction, paint type, coverage rate, coats, and can size
3. Click "Calculate" to see the total wall area, paint needed, and recommended can count — or click "Load Example" to fill in sample data

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device
• Get recommended can counts for your painting project

Free online paint calculator. Calculate paint quantity needed for interior walls, exterior walls, and primer based on room dimensions or wall area. Get recommended can counts for your painting project. Perfect for home renovation and wall refinishing.

Open the tool page — no installation needed Choose a mode (by room dimensions or by wall area), then enter length, width, height or wall area, door & window deduction, paint type, coverage rate, coats, and can size Click "Calculate" to see the total wall area, paint needed, and recommended can count — or click "Load Example" to fill in sample data

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device Get recommended can counts for your painting project

Yes, Paint Calculator is completely free. No download or installation required — it runs right in your browser.