Interior Painting Cost Calculator
Estimate US interior painting costs in USD from room size, openings, coats, prep, paint quality, and local price levels for DIY or professional work.
Uses United States cost data. All estimates are shown in US dollars (USD).
Frequently Asked Questions
How is the paintable wall area calculated?
The calculator uses the perimeter of one rectangular room multiplied by wall height, then subtracts 21 square feet per standard door and 15 square feet per standard window. Ceiling area is added only when selected.
How much does it cost to paint a room professionally?
Professional prices vary with room size, prep, coat count, access, finish quality, and local labor. This calculator applies disclosed low-to-high labor allowances to paintable surface area so the result remains a planning range rather than a false fixed quote.
Does the estimate include trim or major wall repairs?
No — the estimate covers walls and an optional ceiling, standard painting supplies, and ordinary prep at the selected level. Trim, cabinets, lead or asbestos work, water damage, texture removal, and structural repairs need separate pricing.
Related Calculators
Ready to See These Colors in Your Room?
Upload a photo of your room and see it transformed with AI. Try different colors, styles, and layouts - get instant results.
Try AI Room Designer - Free