SqftKit
SqftKit · Square footage

Square footage estimator

Multi-room length × width · feet

Add rooms, enter length and width in feet, and get a total floor area. Optional wall-area helper uses height × perimeter.

Inputs

Wall area helper (optional)

Wall area ≈ height × perimeter (paint estimate). Not added to floor total.

Result

Add room dimensions and calculate.

Disclaimer: Simple rectangle math only — an estimate, not a survey, appraisal, or construction takeoff. Irregular shapes, stairs, and finished vs. unfinished areas need professional measurement.

About SqftKit. A single-purpose square footage tool. Simple rectangle math for quick estimates — not a survey or appraisal. Full tool suite: clearquip.com.
More free calculators on ClearQuip — snow load, loan payoff, BMI, burn lookup.