How do painters calculate the cost of a job?

Professional painters calculate job cost by: (1) measuring total paintable square footage (walls + ceiling, minus doors and windows), (2) estimating labor hours based on sq ft and condition (typically 150–200 sq ft/hr for walls), (3) calculating paint needed (1 gallon covers ~350 sq ft per coat), (4) adding prep time for patching, taping, and cleanup, (5) allocating overhead, then (6) dividing by (1 − target margin) to set the customer price. Most painters target 35–50% gross margin.

How much should painters charge per square foot?

Interior painting rates typically run $1.50–$4.00 per paintable square foot for labor only, or $3–$6 per sq ft for a full job including paint and materials. Higher rates apply for high ceilings, detailed trim work, multiple colors, or heavy prep required. As a painter, your target should be to earn at least $60–$90/hr in effective revenue — use that as your minimum rate check, not the per-sq-ft number alone.

What is a good profit margin for a painting business?

A healthy gross margin for a painting business is 40–55% after labor and materials but before overhead. Net profit margin (after all overhead) typically runs 15–30% for well-run painting businesses. If you're doing the labor yourself, treat your own labor as a cost separate from profit — otherwise you're confusing your wage with your business margin. Price to a 40%+ gross margin to have room to cover overhead and still take home a real profit.

SmartBizCalc

Interior Painting Estimate Calculator

Build a profitable painting job quote — room dimensions, labor, paint, prep, and overhead — so you know your margin before you give the customer a price.

Job Scope

Paintable Wall Area (sq ft)

Surfaces

Number of Coats

Condition / Prep

Labor

Labor Rate ($/hr)

Number of Painters

Materials

Paint Cost ($/gallon)

Sq Ft per Gallon

Other Supplies (tape, drop cloths, etc.) ($)

Pricing

Overhead (%)

Target Margin (%)

Job Estimate

Est. Labor Hours—

Labor Cost—

Paint Needed—

Paint + Supplies Cost—

Overhead—

Total Job Cost—

Your Quote

Recommended Customer Price—

Gross Profit—

Price per Sq Ft—

Effective Hourly Rate—

Labor time estimated at 175 sq ft/hr painting rate, adjusted for coats, surfaces, and condition. Actual time varies by crew experience and job complexity. Always walk the job before quoting.

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