Cost to Paint a Room Calculator (2026)
Find out exactly how much it costs to paint a room in 2026 — whether you do it yourself or hire a professional. Enter your room dimensions below for an instant estimate based on current US average paint and labor prices.
🧮 Your Room Details
🎨 Paint Quality
$35/gal
$50/gal
$65/gal
📊 Your Estimate
How we calculate
Wall area = 2 × (length × height + width × height), minus 21 sq ft per door and 15 sq ft per window. One gallon covers ~350 sq ft per coat. DIY adds ~$50 for rollers, tape, and drop cloths. Pro pricing uses the 2026 US average labor rate you set above (typical range $2–$6 per sq ft of wall area).
Frequently asked questions
How much does it cost to paint a 12×12 room in 2026?
A standard 12×12 room with 8-ft ceilings has about 380 sq ft of paintable wall area. DIY costs roughly $120–$200 (2–3 gallons + supplies), while hiring a pro typically runs $900–$1,600 at average labor rates.
How many gallons of paint do I need for one room?
Divide your wall square footage by 350 (coverage per gallon per coat), then multiply by the number of coats and round up. Most bedrooms need 2–3 gallons for two coats.
Is it cheaper to paint a room yourself?
Yes — DIY usually saves 60–75%. You pay only for paint (~$35–$65/gallon) and about $50 in supplies, while pro labor is the biggest cost driver at $2–$6 per square foot.
How much do painters charge per square foot in 2026?
The 2026 US national average is $2–$6 per square foot of wall area, with most homeowners paying around $3.50. Rates run higher in major metros and for detailed trim work.
Do I really need two coats of paint?
For color changes or darker shades, yes — two coats give even coverage and durability. If you’re repainting the same or a similar light color over a sound surface, one quality coat can be enough.