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House Paint Cost Calculator: How Much Does It Cost to Paint a House?

Whether you’re repainting a single room or doing a full exterior respray, the biggest question is always the same: how much will it cost? House paint costs depend on several variables working together — square footage, paint quality, number of coats, labor rates, and prep work. This guide breaks all of it down with real 2026 pricing, room-by-room estimates, and a full walkthrough of how our house paint cost calculator works.

House Paint Cost Calculator

How to Calculate House Paint Cost

Our house paint cost calculator uses a straightforward formula:

Total Cost = (Wall Area × Cost Per Square Foot) + Prep Work + Materials

For interior projects, cost per square foot typically covers labor and paint combined. For exterior projects, it also factors in prep work like power washing, scraping, and priming.

Paintable Wall Area Formula (Interior)

For a single room:

Wall Area = 2 × (Length + Width) × Ceiling Height − Door/Window Area

Standard deductions: one door = 20 sq ft, one window = 15 sq ft.

For a 12×12 room with 9-foot ceilings and one door + two windows:

Wall Area = 2 × (12 + 12) × 9 − (20 + 30) = 432 − 50 = 382 sq ft

At $3/sq ft: ~$1,145 for a 12×12 room, including labor and paint.


Interior House Paint Cost: By Room and Home Size

Interior painting costs an average of $2 to $6 per square foot, covering walls only. Adding trim and ceilings can raise the price to $4.70 per square foot.

Cost by Room Size

Room SizeWall Area (approx.)Budget ($2/sq ft)Mid-Range ($4/sq ft)Premium ($6/sq ft)
Small bedroom (10×10)300 sq ft$600$1,200$1,800
Standard bedroom (12×12)380 sq ft$760$1,520$2,280
Living room (15×20)600 sq ft$1,200$2,400$3,600
Kitchen (10×14)380 sq ft$760$1,520$2,280
Bathroom (5×8)180 sq ft$360$720$1,080

Interior Paint Cost by Home Size

Most professional painters charge $2 to $6 per square foot for basic wall painting. When you add ceilings, trim, and doors, expect $3.50 to $7 per square foot.

Home SizeLow EstimateMid EstimateHigh Estimate
600 sq ft apartment$1,200$2,400$3,600
1,000 sq ft house$2,000$4,000$6,000
1,200 sq ft house$2,400$4,800$7,200
1,500 sq ft house$3,000$6,000$9,000
2,000 sq ft house$4,000$8,000$12,000
3,000 sq ft house$6,000$12,000$18,000

Estimates include walls, trim, and ceilings. Labor accounts for 60–70% of the total.


Exterior House Paint Cost: By Size and Siding Type

Exterior painting ranges from $1.50 to $4 per square foot in 2026, with most single rooms ranging from $400 to $1,200 and full exterior repaints of 1,500–2,000 sq ft homes commonly falling between $3,000 and $8,000.

Exterior Paint Cost by Home Size

Home SizeLow EstimateMid EstimateHigh Estimate
1,000 sq ft$1,500$2,750$4,000
1,500 sq ft$2,250$4,125$6,000
2,000 sq ft$3,000$5,500$8,000
2,500 sq ft$3,750$6,875$10,000
3,000 sq ft$4,500$8,250$12,000

Exterior Paint Cost by Siding Type

Siding material significantly affects cost because different materials require different primers, coatings, and prep techniques:

Siding TypeCost Per Square FootNotes
Vinyl$1.25 – $3.00Affordable, minimal prep
Wood$1.00 – $3.00Needs sealant, periodic maintenance
Brick$1.50 – $4.50Porous, needs masonry primer
Stucco$2.50 – $5.50Textured, higher paint consumption
Metal / Aluminum$1.00 – $3.50Rust-resistant primer required
Concrete$1.00 – $3.50Porous, needs primer

Labor is the largest component of the exterior house painting cost calculation. In most cases, labor accounts for 70% to 85% of the total price, with the average labor cost ranging from $1.25 to $3.00 per square foot.


What Factors Affect House Paint Cost?

1. Number of Stories

Multi-story homes require scaffolding, boom lifts, and more time at height. Multi-story homes increase labor costs by up to 50% compared to single-story properties of the same footprint.

2. Surface Condition and Prep Work

Prep work can add $500 to $2,000 to the total cost depending on how much work is needed. Peeling paint must be scraped off, cracks in stucco or wood need repairs, and surfaces often require power washing to remove dirt and mold.

Common prep costs:

  • Sanding and patching: $0.50–$0.75 per sq ft
  • Power washing: $150–$400
  • Paint stripping: $0.50–$2.00 per sq ft
  • Primer coat: $15–$80 per gallon (often included in labor quote)

3. Paint Quality

Paint GradeCost Per GallonCoverageNotes
Budget$20 – $40300–350 sq ftFades faster, less washable
Mid-range$40 – $70350–400 sq ftGood balance of durability and cost
Premium$70 – $100+400+ sq ftLongest lasting, best coverage

Premium paint costs more upfront but typically extends repaint intervals from 5–7 years to 10–15 years for exteriors.

4. Ceiling Height

High ceilings add $0.75 to $1.25 per square foot. Textured walls increase costs by 15–25%.

5. Location

California, New York, and Massachusetts have the highest painting labor costs at $2.50 to $4.50 per square foot. Midwest and Southern states average $1.50 to $3 per square foot. Rural regions typically run 20–30% below urban averages.


How Much Paint Do You Need? Gallons by Home Size

For interior projects, a gallon of paint covers approximately 350–400 square feet per coat. Here’s how many gallons you need for a complete interior job (walls + ceilings, 2 coats):

Home SizeApprox. Paintable Wall AreaGallons Needed (2 coats)
1,000 sq ft house2,000 – 2,500 sq ft walls12 – 15 gallons
1,500 sq ft house3,000 – 3,750 sq ft walls17 – 22 gallons
2,000 sq ft house4,000 – 5,000 sq ft walls22 – 30 gallons
3,000 sq ft house6,000 – 7,500 sq ft walls34 – 44 gallons

For exterior projects, it takes about 12 gallons of paint to complete an average-sized exterior. Brick and stucco consume 20–30% more paint due to their porous surfaces.


Interior vs. Exterior Paint Cost Comparison

FactorInterior PaintingExterior Painting
Average cost/sq ft$2 – $6$1.50 – $4
Average full-home cost$2,000 – $12,000$3,000 – $10,000
Labor share of total60–70%70–85%
Paint type neededLatex, eggshell, satinAcrylic latex, oil-based
Typical prep time1–4 hours per room1–3 days
Repainting interval5–10 years5–15 years
Best seasonAny (year-round)Late spring – early fall

Is It Cheaper to Paint a House or Put Siding On It?

Painting is almost always significantly cheaper in the short term. A full exterior repaint costs $3,000–$10,000. New vinyl siding on the same home typically runs $8,000–$20,000+. Fiber cement siding can cost $15,000–$40,000 depending on the home size.

However, new siding lasts 20–40 years with minimal maintenance, while paint needs reapplication every 5–15 years. Over a 30-year period, the total cost of repeated repaints can approach or exceed siding installation. The right choice depends on your current siding condition, your timeline, and whether you’re planning to sell. For homes with sound, structurally solid siding, painting almost always wins as the more cost-effective near-term solution.


How to Reduce Your House Painting Cost

Do your own prep. Handling preparation yourself — washing walls, moving furniture, removing outlet covers, and applying painter’s tape — can save $300 to $800 by reducing labor hours.

Paint in the off-season. Interior painting rates drop 15–25% between November and February, when contractor demand is lower and exterior work slows down.

Buy paint during sales. Big-box stores regularly discount paint during major holiday weekends. Buying during Memorial Day or Labor Day sales can save 20–40% on premium paint.

Get at least three quotes. Contractor pricing for identical jobs can vary 30–40% depending on their overhead, experience level, and current schedule. Use your house paint cost calculator estimate as a baseline to evaluate each quote.

Paint fewer accent walls or colors. Every color change adds prep time (masking, cleaning equipment between colors). Sticking to one or two colors per project meaningfully reduces labor time.


Frequently Asked Questions

How Much Should It Cost to Paint the Exterior of a 2,000 Square Foot House?

The cost to paint 2,000 sq ft house exterior averages between $4,500 and $6,500. A single-story home in good condition with vinyl or wood siding lands at the lower end; a two-story home needing significant prep work sits at the higher end.

How Much Paint Costs for a 1,000 sq ft House?

A 1,000 sq ft house exterior costs $1,500 to $4,000 to paint, with variations based on siding material and prep work. For interior painting of a 1,000 sq ft home, budget $2,000 to $6,000 for a full paint job including walls, trim, and ceilings.

How Much Paint Costs for a 1,500 sq ft House?

A 1,500 sq ft house exterior typically costs $2,250 to $6,000. The final price depends on the home’s height, surface condition, and paint quality. Interior painting of a 1,500 sq ft home runs $3,000 to $9,000.

How Much Should It Cost to Paint the Interior of a 3,000 sq ft House?

At standard rates of $2–$6 per square foot, painting the full interior of a 3,000 sq ft home — walls, trim, and ceilings — costs between $6,000 and $18,000. A mid-range estimate using quality paint and professional labor lands around $10,000–$12,000.

How Many Gallons of Paint for a 2,000 sq ft House Interior?

A 2,000 sq ft home has approximately 4,000–5,000 square feet of paintable wall surface (accounting for ceiling height and room count). At 350 sq ft per gallon with two coats, you need roughly 22–30 gallons for a complete interior repaint including walls and ceilings.

Is It Cheaper to Paint a House or Put Siding On It?

Painting is cheaper upfront by a significant margin — typically $3,000–$10,000 versus $8,000–$40,000+ for new siding. Over 30 years, repeated repaints may approach siding costs, but painting wins for near-term budgets and homes with structurally sound existing siding.


How Our House Paint Cost Calculator Works

Our free painting estimate calculator asks for:

  • Project type — interior, exterior, or both
  • Square footage — total floor area or wall area
  • Number of rooms — for room-by-room interior estimates
  • Paint quality — budget, mid-range, or premium
  • Number of coats — typically 2 for walls, 1–2 for ceilings
  • Prep condition — good, fair, or poor (affects labor estimate)

It then outputs a total cost estimate broken down by materials and labor, plus a gallon count so you know exactly what to buy. Use it as your baseline before requesting contractor quotes — or as a free painting estimate calculator to validate quotes you’ve already received.