Estimate what it costs to paint a room or whole house — DIY materials only, or fully professional labor and materials.
Professional painters price by square foot of wall area, not by room or by gallon. Wall area is roughly room perimeter × wall height (minus large openings), and most quotes assume two coats since one coat rarely gives even, opaque coverage — especially over a darker existing color. Going from one coat to two roughly doubles paint usage but doesn't double labor cost, since setup, taping, and cut-in work happens once regardless of coat count.
| Service Level | Cost / Sq Ft | What's Included |
|---|---|---|
| DIY — Materials Only | $0.50 – $1.00 | Paint, primer, tape, rollers, and brushes. You provide all labor and time. |
| Professional — Standard | $2.50 – $4.50 | Standard-grade paint, basic prep (light patching, taping), 2-coat application. |
| Professional — Premium | $4.00 – $6.00 | Premium paint, full surface prep (sanding, caulking, priming stains), 2-coat finish. |
Ceilings, trim, and doors are typically quoted separately and can add 20–40% to a whole-room project total.
A standard 10×12 bedroom (about 280 sq ft of wall area) typically costs $150–$280 in DIY materials, or $700–$1,260 for professional labor and materials at standard quality.
For an average 2,000 sq ft home (roughly 2,400–3,000 sq ft of interior wall area), professional interior painting typically runs $6,000–$13,500 depending on quality level and prep needed.
Measure your room's perimeter (sum of all wall lengths) and multiply by wall height, then subtract roughly 20 sq ft per standard door and 15 sq ft per standard window. Use our Paint & Primer Calculator for the exact gallon count once you know your area.
DIY materials cost roughly 60-80% less than hiring a professional, but professional painters typically finish 3-5x faster and include surface prep, which is the step most DIYers underestimate and rush.