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Convert AEC units without breaking the conversation.
Length and area conversions for scope calls, markups, model reviews and international project briefs.
AEC unit converter
Fast length and area conversions for briefs, markups and scope calls.
Length factors use the international metre: 1 in = 0.0254 m and 1 ft = 0.3048 m. Area conversions use the squared factors; 1 acre = 4,046.8564224 m² and 1 hectare = 10,000 m². Match displayed precision to the source measurement.
How to use the result
Turn the output into a better project question.
- 01
Choose length or area before entering a value.
- 02
Match the source unit to the drawing, brief or model you received.
- 03
Copy the converted value with enough precision for the decision—but not more precision than the source supports.
Check before relying
The inputs that change the answer.
- Drawing scale and declared project units
- Rounding appropriate to design, construction or commercial use
- Whether the number represents gross, net, usable or measured area
We review each tool against the decision it helps someone make, the clarity of its assumptions and how people use the result. Tell our team what would make this tool more useful.
Start with the deliverable
Converting units is easy. Interpreting the scope is the useful part.
Send the drawing set, model purpose and output requirement when the number needs to become a BIM delivery decision.