Floor Area
A rectangular floor area is the starting point for many material takeoffs. Record each irregular section separately and add the areas.
Floor Area
Surfaces · 2 inputs
How to use this calculator
- Enter room length in m.
- Enter room width in m.
- Select Calculate and keep the output unit with the answer.
Before you use the answer
Keep a measurement sheet separate from the purchasing allowance. Record which dimensions are internal, which openings were subtracted and which items must be bought as full packs. These are material and schedule estimates; they do not establish structural adequacy or building-code compliance.
Use internal dimensions. Alcoves and cutouts need their own adjustments.
Does it save my inputs?
No calculation history is stored by this website. The calculator works locally in your browser. See the privacy policy for hosting and contact details.
Why might a result be approximate?
Measurement uncertainty, ideal-model assumptions and floating-point rounding can all matter. Displaying more digits does not improve the original measurement.
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