How much does interior painting cost in 2026?
Interior painting runs $2.75 to $4.70 per square foot in 2026 ($2.75/sf for walls only, $4.70/sf with walls + ceiling + trim). Most rooms cost $300-$1,500 each; whole-floor projects run $3,000-$8,500.
| Project | Wall area | Gallons | Installed cost |
|---|
| 12x12 bedroom (walls + ceiling) | ~528 sf | 3-4 | $400 – $900 |
| 16x18 living room (9 ft walls + ceiling + trim) | ~900 sf | 5-6 | $800 – $1,800 |
| 8x10 bathroom (semi-gloss + primer) | ~368 sf | 2-3 | $300 – $700 |
| Whole floor 1500 sf (walls + ceilings + trim) | ~2000 sf | 11-13 | $3,500 – $7,500 |
| Single accent wall (12 ft x 9 ft, premium) | 108 sf | 1 | $120 – $300 |
Paint finishes by room
- Flat / matte — ceilings, low-traffic walls. Hides drywall imperfections; not washable.
- Eggshell — living rooms, dining rooms, bedrooms. Slight sheen, mostly washable.
- Satin — hallways, kid's rooms, family rooms. Mild sheen, very washable.
- Semi-gloss — kitchens, bathrooms, laundry rooms, trim. Durable, scrubable.
- Gloss — doors, trim, accent surfaces. Most durable but reveals every imperfection.
Frequently asked questions
How much does interior painting cost in 2026?
Interior painting runs $2.75-$4.70 per square foot installed in 2026 (walls only, $4.70 with walls + trim + ceilings). A 12x12 bedroom runs $400-$900. Whole-floor 1500 sf paint job runs $4,500-$8,500.
How many gallons of paint do I need?
One gallon covers 350-400 sq ft per coat. For two coats on a typical 12x12 room (walls + ceiling, ~528 sf), you need 3-4 gallons. Add 5% extra for waste and touch-ups.
What's the best paint finish for interior walls?
Flat / matte hides imperfections but isn't washable - good for ceilings and low-traffic walls. Eggshell is the most popular for living areas. Satin is durable for bedrooms and hallways. Semi-gloss for kitchens, bathrooms, and trim. Gloss only for trim, doors, and accents.
Do I need to prime?
Prime when going over bare drywall, dramatically lighter paint over dark, stains (water, smoke), or after major drywall repair. Existing painted walls in a similar color usually don't need primer. Primer adds ~$0.50-$1.00/sf material + labor.
Can I paint over wallpaper?
Yes but the result is rarely good. Seams show through. Better to remove wallpaper, repair any drywall damage, prime, then paint. The labor saved by painting over is usually offset by needing extra coats.
How long does painting a room take?
A pro crew finishes a 12x12 bedroom in half a day (4-6 hours). DIY typically 2-3x as long, especially with cutting in trim.
Why does the calculator show a price range?
Paint labor varies 30-50% by region, painter skill, prep level, and brand of paint. A range gives an honest planning estimate.
