What does it cost to paint a room?

The short answer: $300–$1,400 per room, depending on size, ceiling height, surface count, prep needs, and your local labor market. The long answer — the one that actually helps you price work or evaluate a quote — requires breaking the job into its components: materials, labor, and prep.

This guide provides room-by-room cost benchmarks, then shows you how to calculate a custom estimate for any room using the same math professional estimators use. For a deeper dive into each component, see our Painting Estimating Software Guide.

Room-by-room cost ranges

The table below shows typical cost ranges for interior painting. These assume walls and ceiling, two coats of standard-quality latex paint, basic prep (light patching, taping), and professional labor at mid-market rates. Trim, doors, and cabinets are listed separately because not every job includes them.

Room Type Typical Size Ceiling Cost Range
Bedroom (standard) 12 × 12 ft 8 ft $400–700
Master bedroom 14 × 16 ft 9 ft $600–1,000
Living room 16 × 20 ft 9 ft $800–1,400
Kitchen (walls only) 12 × 14 ft 9 ft $500–900
Bathroom 8 × 10 ft 8 ft $300–500
Hallway 4 × 20 ft 8 ft $200–400
Dining room 12 × 14 ft 9 ft $500–850
Home office 10 × 12 ft 8 ft $350–600

What's included in these ranges

What's extra

How to calculate your specific room

Room-by-room ranges are useful for quick ballparks, but every room is different. Here's how to calculate a custom estimate using a 12 × 15 ft room with 9 ft ceilings as a worked example.

Step 1: Calculate paintable wall area

Perimeter = (12 + 15) × 2 = 54 ft
Gross wall area = 54 × 9 = 486 ft²
Openings = 2 windows (21 ft² each) + 1 door (19 ft²) = 61 ft²
Net wall area = 486 − 61 = 425 ft²

Step 2: Calculate ceiling area

Ceiling area = 12 × 15 = 180 ft²

Step 3: Calculate material cost

Using a coverage rate of 375 ft²/gal for smooth drywall (brush/roll), 2 coats, and 10% waste. For a full coverage reference by substrate, see our Paint Coverage Rates by Surface guide.

Wall paint = (425 ÷ 375) × 2 × 1.10 = 2.49 gal → 3 gallons
Ceiling paint = (180 ÷ 375) × 2 × 1.10 = 1.06 gal → 2 gallons (or 1 gal + 2 qt)
Material cost = 5 gallons × $40/gal = $200

Step 4: Calculate labor cost

Using production rates from our Painting Labor Rates Guide: walls at 175 ft²/hr, ceiling at 125 ft²/hr, plus 20 min setup and 15 min cleanup.

Wall painting = (425 ÷ 175) × 2 = 4.86 hr
Ceiling painting = (180 ÷ 125) × 2 = 2.88 hr
Setup/cleanup = 0.58 hr
Total labor = 8.32 hr → rounded to 8.5 hr
Labor cost = 8.5 hr × $50/hr = $425

Step 5: Add prep

Prep Task Time Cost (@ $50/hr)
Masking and protection 1.5 hr $75
Light patching (nail holes) 0.5 hr $25
Caulking baseboard (~50 LF) 1.0 hr $50
Prep total 3.0 hr $150

Step 6: Total estimate

Component Cost
Materials (paint) $200
Labor (painting) $425
Labor (prep) $150
Subtotal (cost) $775
Margin (40%) $310
Selling price ~$1,085

This 12 × 15 room with walls and ceiling, standard prep, and a 40% gross margin lands at roughly $1,085 — well within the master-bedroom range in the benchmark table above. Adjusting any input (coverage, labor rate, margin) shifts the price proportionally.

Factors that increase cost

Factors that decrease cost

Whole-house discount: When painting 5+ rooms on the same job, many contractors offer a 5–10% volume discount. The efficiency gains from bulk paint purchasing, reduced mobilization, and continuous workflow often cover the discount while maintaining margins.

Get an instant estimate

Rather than running these calculations by hand for every room, try our free painting calculator. Enter room dimensions, select surfaces, and get material quantities, labor hours, and cost estimates in seconds. It uses the same coverage and production-rate math described in this guide.

How PriceTable automates room-by-room estimation

PriceTable's site walkthrough lets you capture every room in a home — dimensions, surfaces, ceiling type, prep needs — and converts the walkthrough into a professional estimate with a single click. Materials are calculated per surface using your coverage rates. Labor is derived from your production rates with appropriate multipliers. Prep is scoped explicitly per room.

The result is a room-by-room estimate you can present on-site, adjust in real time, and convert to an invoice once the work is complete. No spreadsheets, no second trips, no guessing.

For a step-by-step guide to the full bidding process, see How to Bid a Painting Job.