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Square foot calculator for estimates that hold up on site

HammerCalc’s square foot calculator helps you turn room and slab dimensions into clear area numbers — with visual layout helpers built for estimators, tile setters and general contractors.

Try free for 7 days See all features

What this square footage calculator does

Use HammerCalc to calculate square footage from real construction dimensions — including feet, inches and fractions. Pair area math with the same mixed-unit keypad you use for takeoffs, so you’re not bouncing between apps mid-estimate.

  • Square footage and area math for rooms, slabs and layouts
  • Works with feet, inches, fractions and metric when plans mix units
  • Built for estimators, flooring, drywall and general contracting takeoffs
  • Save results into notes with full calculation history

Why HammerCalc beats a basic sq ft calculator

A one-purpose square foot calculator can’t finish the rest of the job. HammerCalc is the best construction calculator app when your estimate also needs stairs, rafters, drywall counts and mixed imperial/metric math.

FAQ

Is there a square foot calculator in HammerCalc?

Yes. HammerCalc includes square footage tools with visual layout helpers for job-site area math.

Can I mix units when calculating area?

Yes. Enter feet, inches, millimeters and meters in the same workflow and convert results with one tap.

Get this tool on your iPhone, iPad & Mac

Stairs, square footage, feet & inches, metric & imperial — all in HammerCalc.

Download on the App Store ← Back to home