Painting Cost Calculator
Estimate total painting cost - DIY vs professional
Length of the room
Width of the room
Height of walls
Affects per-gallon price
Wall Area
—
sq ft
Paint Needed
—
gallons
DIY Cost
—
USD
Professional Cost
—
USD
How to Use This Calculator
Our calculator estimates both DIY and professional costs so you can make an informed decision.
- Measure room dimensions
- Select paint quality
- Use the calculator
- Compare DIY vs professional costs
AI Insights
Smart analysis for your project
Smart Estimates
Our AI cross-references material costs, regional pricing, and project complexity for more accurate estimates.
Waste Optimization
AI-calculated waste factors based on project type, not flat percentages. Saves 5-15% on material costs.
Best Practices
Recommendations derived from building codes, contractor data, and thousands of completed projects.
Calculation Formula
Wall area = 2 x (L + W) x H
Gallons = Wall area x 2 coats / 350
DIY = Gallons x Price + $75 supplies
Pro = Wall area x $2.50/sqft
Frequently Asked Questions
How much does it cost to paint a room professionally?
Professional painting costs $1.50-$3.50 per square foot. A standard 12x10 room costs $380-$790.
Is it cheaper to paint yourself?
DIY costs $100-$250 for a 12x10 room. That is 50-70% less than hiring a pro.