How much does it cost to paint a room?

A typical bedroom costs $100–$300 for DIY (paint and supplies) or $300–$800 for professional painting. The exact cost depends on room size, paint quality, number of coats, and local labor rates.

How much does professional interior painting cost?

Professional painters charge $2–$6 per square foot of wall area, which translates to about $200–$800 per room. Whole-house interior painting for a 2,000 sq ft home typically costs $3,000–$7,000 including labor and materials.

Is expensive paint worth it?

Generally yes. Premium paints ($40–$70/gal) have higher pigment concentration, better coverage (sometimes 1 coat is sufficient), more durability, and longer lifespan. Cheap paint may cost less per gallon but require more coats and more frequent repainting.

What supplies do I need for painting?

Basic supplies include: roller frame and covers, paint tray, painter's tape (1–2 rolls per room), drop cloths, angled brush (for cutting in), stir sticks, and a paint can opener. Add sandpaper, spackle, and caulk for prep work.

How much does exterior painting cost?

Exterior painting typically costs $1,500–$5,000 for a single-story home and $3,000–$10,000 for a two-story home when professionally done. DIY exterior painting costs $200–$600 in materials for a typical home.

Should I hire a professional or paint myself?

DIY saves 60–75% on cost but requires your time (a room takes 4–8 hours). Professionals deliver faster, more uniform results and can handle difficult areas like high ceilings, stairwells, and exteriors more safely.

How much primer do I need?

Primer typically covers 300–400 sq ft per gallon. You need primer for new drywall, stains, bare wood, and dramatic color changes. On previously painted walls in good condition with a similar color, you can usually skip primer.

Do professional painters include materials in their quote?

Most professional painting quotes include both labor and materials. Some painters offer a labor-only rate allowing you to provide the paint. Ask for an itemized quote to see the breakdown.

Paint Cost Calculator

Estimate the total cost of a painting project including paint, primer, supplies, and labor. Enter gallons needed and prices for a full budget breakdown.

Room Length (ft)

Room Width (ft)

Ceiling Height (ft)

Number of Doors

Number of Windows

Paint Quality

Number of Coats

Gross Wall Area

416.00 sq ft

Perimeter × height before deductions

Paintable Area

365.00 sq ft

Minus 51 sq ft for 1 doors & 2 windows

Paint Gallons

1.95 gal exact

Paint Cost

$80.00

2 gal × $40.00/gal

Primer Cost

$25.00

1 gal × $25.00/gal

Total Cost

$105.00

Paint + Primer combined

Cost per Sq Ft

$0.29

Total cost ÷ paintable area

Cost Breakdown

Paint$80.00 (76.2%)

Primer$25.00 (23.8%)

Paint Quality Comparison

Quality	Price/Gal	Coverage	Primer Price	Best For
Economy	$25	350 sq ft/gal	$18	Rentals, storage, quick touch-ups
Standard	$40	375 sq ft/gal	$25	Bedrooms, hallways, general use
Premium	$60	400 sq ft/gal	$30	Living rooms, main areas
Designer	$85	425 sq ft/gal	$35	Feature walls, high-end finishes

Standard Opening Deductions

Opening	Standard Size	Deduction
Interior Door	3′ × 7′	21 sq ft
Standard Window	3′ × 5′	15 sq ft
Sliding Door	6′ × 7′	42 sq ft
Picture Window	5′ × 4′	20 sq ft
Double Window	5′ × 5′	25 sq ft
French Door	5′ × 7′	35 sq ft

Paint Buying Tips

Tip	Details
Buy extra	Keep 10-15% extra for touch-ups and future repairs
One-gallon minimum	Stores sell gallons and quarts — round up to nearest gallon
Same batch number	Buy all cans from same lot for consistent color
Test before committing	Buy a sample quart and paint a 2×2 ft test patch first
Primer saves paint	Priming porous surfaces prevents extra paint coats

Planning notes, formulas, and examples

About the Paint Cost Calculator

Budgeting for a painting project involves more than just the cost of paint. You need primer, brushes, rollers, tape, drop cloths, and possibly a sprayer rental. If you're hiring professionals, labor often represents 70–85% of the total cost. Understanding all these cost components helps you plan a realistic budget and decide between DIY and professional painting.

This paint cost calculator breaks down the full expense of your project. Enter the gallons of paint needed, the price per gallon, primer costs, supply costs, and optional labor. The calculator provides a comprehensive cost breakdown so you can compare options and plan your budget with confidence.

Whether you're painting a single accent wall or an entire house exterior, starting with a clear cost estimate helps prevent budget surprises and lets you allocate funds appropriately across all the materials and labor involved.

When This Page Helps

Paint prices vary dramatically by brand and quality, from $20 to $80+ per gallon. When combined with primer, supplies, and potential labor costs, a painting project can add up quickly. It gives a complete cost picture so you can make informed decisions about product quality and DIY vs. professional work.

How to Use the Inputs

Enter the total gallons of paint needed (use our paint gallons calculator to determine this).
Enter the price per gallon for your chosen paint.
Enter the gallons of primer needed (if applicable) and the primer price per gallon.
Estimate your supply costs (brushes, rollers, tape, drop cloths).
Optionally enter labor cost if hiring a professional painter.
Review the total project cost breakdown.

Formula used

Paint Cost = Gallons × Price per Gallon
Primer Cost = Primer Gallons × Primer Price per Gallon
Total = Paint Cost + Primer Cost + Supply Cost + Labor Cost

Example Calculation

Result: $615.00

Paint: 10 gal × $45 = $450. Primer: 3 gal × $30 = $90. Supplies: $75 for brushes, rollers, tape, and drop cloths. Total: $450 + $90 + $75 = $615 for a DIY project.

Tips & Best Practices

Premium paints ($50–$70/gal) often cover better and last longer, potentially saving money over time.
Budget $50–$100 for basic painting supplies (brushes, rollers, tape, drop cloths) per project.
Professional painters typically charge $2–$4 per square foot for walls or $25–$50 per hour.
Buy in 5-gallon buckets for 10–20% savings compared to individual gallons.
Self-priming paints can eliminate the need for separate primer on previously painted surfaces.
Get multiple quotes from professional painters and check references before hiring.

Breaking Down Painting Project Costs

Every painting project has four main cost components: paint, primer, supplies, and labor (if not DIY). Paint is typically 15–30% of a professional job's total cost, with labor making up the remaining 70–85%.

Paint Price Tiers

Budget paints ($15–$25/gal) have lower solids content and may need 3+ coats. Mid-range paints ($30–$45/gal) offer good coverage in 2 coats. Premium paints ($50–$75/gal) often achieve excellent coverage in 1–2 coats with superior durability and washability.

DIY vs. Professional Painting

DIY painting is best for simple rooms with standard ceilings and minimal prep work. Hire professionals for high/vaulted ceilings, extensive repair work, exterior painting, or when time is a constraint. The quality difference between skilled and unskilled painting is significant.

Saving Money on Painting Projects

Do your own prep work (cleaning, sanding, taping) even if hiring painters for the actual painting. Buy paint during holiday sales for 25–40% off. Use paint-and-primer combos to reduce the number of coats. And always get three quotes from professional painters before committing.

Sources & Methodology

Last updated: February 8, 2026

Frequently Asked Questions

A typical bedroom costs $100–$300 for DIY (paint and supplies) or $300–$800 for professional painting. The exact cost depends on room size, paint quality, number of coats, and local labor rates.