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INTERIOR PAINTING

Interior Painting Cost Calculator

Estimate the cost of interior painting: paint and labor per square foot, with U.S. prices. Your entries stay on this device.

JOB INPUTS

Enter your numbers

Loading saved values

Wall and trim area in sq ft

sq ft
Wall and trim area in sq ft

Paint, primer and supplies per sq ft

$
Paint, primer and supplies per sq ft

Prep, cutting and rolling per sq ft

$
Prep, cutting and rolling per sq ft
Results update automatically
CALCULATED RESULTUSD
Total interior painting cost$2,400.00
Paint and supplies$800.00
Labor$1,600.00
Installed per sq ft$3.00
Total cost$2,400.00
FORMULA USED800 × ($1.00 + $2.00) = $2,400.00

HOW TO USE IT

How to use the Interior Painting Cost Calculator

  1. 1

    Measure the wall and trim surface to paint in square feet.

  2. 2

    Choose the paint and supplies price per sq ft.

  3. 3

    Enter labor per sq ft and review the total.

THE MATH

Interior painting formula

Total cost = area × (paint + labor)

Interior painting is priced per square foot and includes paint, primer and supplies plus labor: prep, cutting in and rolling.

PRACTICAL EXAMPLE

A 800 sq ft interior

800 sq ft × ($1/sq ft paint + $2/sq ft labor) = $2,400.

FAQ

Frequently asked questions

What finish should I choose?

Flat hides wall imperfections; eggshell/satin suits high-traffic rooms and is washable; semi-gloss works for trim and kitchens.

Do I need a primer?

Yes on bare drywall, stains or after sanding — primer seals the surface and improves topcoat adhesion and coverage.

How long does it take?

A standard room takes 1-2 days of prep and 1-2 days of painting depending on wall condition and number of coats.