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Room Size Calculator

Floor, walls, ceiling, volume and perimeter — instantly.

Length (ft)

Width (ft)

Height (ft)

Floor Area

120 ft²

Ceiling Area

120 ft²

Wall Area

440 ft²

Volume

1,200 ft³

Perimeter

44 ft

Diagonal

15.62 ft

Cross-unit equivalents

Floor: 120 sq.ft

Floor: 11.15 sq.m

Volume: 1,200 cu.ft

Volume: 33.98 cu.m

Want a closer look at your room size calculator numbers?

This is an estimate to plan with, not a loan offer. Compare it against the other calculators before you commit to anything.