Paint Calculator

Paint Calculator

The Paint Calculator helps users accurately estimate the amount of paint required for painting interior walls based on room dimensions, wall height, number of doors and windows, paint type, surface type, and number of coats. By entering simple room measurements, users can instantly calculate total paint volume, primer requirement, and overall painting costs.

This calculator is ideal for homeowners, painters, contractors, and interior designers who want to plan painting work efficiently. It reduces paint wastage, avoids over-buying, and provides a clear cost estimate, making budgeting and material planning simple and reliable.

Formula Used for ROI Calculation

Total Wall Area
Wall Area = 2 × (Length × Height) + 2 × (Width × Height)

Door Area
Door Area = Number of Doors × 2 m²

Window Area
Window Area = Number of Windows × 1.5 m²

Paintable Area
Paintable Area = Wall Area − Door Area − Window Area

Adjusted Coverage (Rough Surface)
Adjusted Coverage = Paint Coverage × 0.8

Paint Volume Required
Paint Volume (Liters) = (Paintable Area ÷ Coverage) × Number of Coats × Wastage Factor

Primer Volume
Primer Volume = Paint Volume × Primer Ratio

Number of Paint Cans
Paint Cans = Ceiling(Paint Volume ÷ 5)

Paint Cost
Paint Cost = Paint Volume × Cost per Liter

Primer Cost
Primer Cost = Primer Volume × Primer Cost per Liter

Labor Cost
Labor Cost = Paint Volume × Labor Cost per Liter

Total Estimated Cost
Total Cost = Paint Cost + Primer Cost + Labor Cost

Key Features of This Car Loan Calculator

1. Calculates wall paint quantity
2. Calculates primer requirement
3. Calculates number of paint cans
4. Estimates total painting cost
5. Supports multiple paint types
6. Supports smooth and rough surfaces

What This Calculator Shows

• Total paint required (liters)
• Number of paint cans
• Primer volume
• Number of coats applied
• Paint cost
• Primer cost
• Labor cost
• Total estimated cost