How accurate are painting cost estimates?

Our calculator uses industry-standard formulas and regional pricing data. Accuracy depends on correct measurements and honest assessment of surface conditions. Professional quotes may vary by ±15%.

How much paint do I need for a room?

As a general rule, one gallon covers 350-400 square feet with one coat. Most projects require two coats. Our calculator factors in your specific room dimensions and paint quality.

What's the difference between paint finishes?

Flat/matte hides imperfections but is less washable. Eggshell and satin offer a balance of durability and appearance. Semi-gloss and gloss are highly durable but highlight surface flaws. Choose based on room usage and surface condition.

Should I hire a professional painter or DIY?

Consider your experience level, time constraints, and project complexity. DIY saves 40-60% on labor costs but requires time, tools, and skill. Professional painters provide expertise, efficiency, and warranties on their work.

How much does prep work add to the cost?

Poor surface conditions can increase costs by 30-50%. Significant repairs, extensive sanding, or wallpaper removal substantially increase both time and materials needed.

What additional costs should I consider?

Factor in primer costs for new drywall or dramatic color changes, specialty paints for kitchens/bathrooms, equipment rental (scaffolding, sprayers), and disposal fees for old materials.

How long will my painting project take?

A standard bedroom takes 1-2 days DIY or 4-6 hours professionally. Larger rooms, multiple coats, and complex prep work extend the timeline. Our calculator provides estimated hours based on your specific inputs.

Painting & Decorating Cost Calculator

Estimate the total cost of your painting and decorating project with precision. Our calculator accounts for room dimensions, surface conditions, material quality, and labor options to provide a comprehensive budget breakdown. Whether you're planning a DIY refresh or hiring professionals, get accurate cost projections for any interior or exterior painting project.

By CalculatorBolt Team | Published: January 15, 2025 | Updated: January 15, 2025 | Reviewed by: Home Improvement Expert

Explore more tools on free calculators on CalculatorBolt.

How it works

Our calculator determines project costs by analyzing surface area, material requirements, and labor factors. It calculates paint quantities based on coverage rates, adjusts for surface conditions requiring extra preparation, and compares DIY versus professional costs. The tool provides a detailed breakdown of every cost component, helping you make informed decisions about your painting project.

Project Calculator

Quick Room Templates (Optional)

Room Dimensions

Room Type

Select room type for recommendations

Measurement Units

Wall Height (ft)

Standard ceiling height

Wall Length (ft)

Wall Width (ft)

Number of Windows

Number of Doors