OTHER · AREA CONVERTER
Area Converter Calculator
Convert between square millimetres, centimetres, metres, kilometres, inches, feet, yards, acres, hectares, and square miles. Exact NIST-derived factors.
0.0929
m²
1 ft² = 0.0929 m²
About This Calculator
Convert area measurements between metric and imperial units. All factors are exact, derived from the 1959 international length definitions (1 in = 25.4 mm exactly).
How It Works
Each area unit's factor is the square of its length factor. For example, 1 ft² = 0.3048² = 0.09290304 m² exactly.
The Formula
result = value × factor(from) ÷ factor(to), where each factor is the unit's exact area in square metres (e.g. 1 acre = 43560 ft² = 4046.8564224 m²).
Frequently Asked Questions
- How many square metres in an acre?
- Exactly 4046.8564224 m² — derived from 1 acre = 43560 ft² and 1 ft = 0.3048 m (both exact).
- How many acres in a hectare?
- Approximately 2.4711 acres. One hectare is exactly 10000 m²; one acre is 4046.8564224 m².