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Converters

Area Converter

Convert between m², km², hectares, acres, ft², and square miles — with practical size comparisons for land and property.

Square meters (m²)1
Square kilometers (km²)0.000001
Hectares (ha)0.0001
Square feet (ft²)10.76391
Acres0.000247
Square miles (mi²)0

Anchored conversions from Square meters (m²) use exact internationally agreed factors. Everything is computed locally, instantly.

Land Units You Will Actually Meet

  • 1 hectare = 10,000 m² = 2.471 acres — the standard agricultural unit almost everywhere except the US.
  • 1 acre = 4,046.86 m² = 43,560 sq ft — its odd definition descends from the area a yoke of oxen ploughed in a day.
  • 1 km² = 100 hectares = 247.1 acres — city plans and wildfire reports live at this scale.
  • Room-scale conversions (m² to sq ft) multiply by 10.764; garden and property listings mix the two constantly.

How the Conversion Works

  1. Enter an area value and pick its unit.
  2. All other units convert simultaneously, anchored on the square meter.
  3. Context comparisons show the area in football pitches or tennis courts for intuition.
  4. Exact factors only — no rounded approximations.
Formula & Technical Standard
1 ha = 10,000 m² · 1 acre = 4,046.8564224 m² (exact) · 1 ft² = 0.09290304 m² (exact).

Conversion Example

Land purchase abroad
Input: 2.5 ha
Output: 6.18 acres
Hectares and acres never coexist in one country, so cross-border property listings always need this conversion.
Floor plan
Input: 120 m²
Output: 1,291.67 ft²
Apartment sizes in European listings vs US listings use different area units entirely.

Common Questions

How big is a hectare in everyday terms?

A hectare is 100 m × 100 m — about 1.4 football pitches or roughly 2.5 acres.

Why is the acre such an odd number of square meters?

The acre descends from medieval English land measures (a furlong by a chain). Its modern definition is exact: 4,046.8564224 m².

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Length & Distance Converter

Convert between all common metric and imperial length units with exact, internationally agreed conversion factors — every unit shown at once.

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Volume Converter

Convert liters, milliliters, cubic meters, US and imperial gallons, quarts, pints, cups, and fluid ounces — with the US/UK gallon distinction handled.

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Weight & Mass Converter

Convert between kilograms, grams, pounds, ounces, stone, and tons with exact definitions — all units displayed simultaneously.