An area converter moves a measurement between metric area units (square metres, hectares, square kilometres) and US/imperial ones (acres, square feet, square miles). It converts your value into a base unit — square metres — and back out. A neat fact: because area is length squared, every area factor is the square of the matching length factor (a foot is 0.3048 m, so a square foot is 0.3048² = 0.092903 m²), which keeps these conversions exact. This tool converts units; for the area of a shape, use the Area Calculator.
Reviewed: June 20, 2026 · Author: Naveen P N, Founder — AI Calculator · Verified against: exact length-squared factors, recomputed in code.
How the conversion works
Each unit equals a fixed number of square metres: a hectare is 10,000 m², an acre 4046.856 m², a square foot 0.092903 m². Multiply your value by the "from" unit's m²-per-unit to reach square metres, then divide by the "to" unit's. The land units people compare most — acres and hectares — sit either side of the metric/imperial divide, which is exactly what the converter bridges.
Worked example — 1 acre in other units
Scenario: convert 1 acre to other area units.
One acre is 4046.86 m², 0.404686 hectares, or exactly 43,560 square feet. The reverse cases are just as clean: 1 hectare is 2.47105 acres, 1 m² is 10.7639 ft², and 1 km² is 100 hectares (247.105 acres). The converter shows your value in every supported unit at once, handy for real-estate, land and construction work.
Frequently Asked Questions
10.7639 ft², since area scales as length². m² × 10.7639 = ft².
4046.856 m² (= 0.404686 ha = 43,560 ft²).
1 ha = 10,000 m² = 2.47105 acres. 1 acre = 0.404686 ha.
No — this converts units; the Area Calculator finds a shape's area.
Yes — area factors are squares of exact length factors (1 in² = 645.16 mm²).