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Calculators / Conversions / Area converter
Area converter calculator
Convert area measurements from square metres into common metric and imperial units.
On this page
square millimetres1,000,000mm²
square centimetres10,000cm²
square KM1.00e-6km²
square inches1,550in²
square feet10.76ft²
acres2.47e-4ac
hectares1.00e-4ha
Calculator controls
How to calculate
Convert area measurements from square metres into common metric and imperial units.
Converted value = base-unit value ÷ target-unit factor
Worked example
Value (m²): 1.
square millimetres: 1,000,000 mm²; square centimetres: 10,000 cm²; square KM: 1.00e-6 km²; square inches: 1,550 in²; square feet: 10.76 ft²; acres: 2.47e-4 ac; hectares: 1.00e-4 ha.
Assumptions and limits
Area conversions square the length factor: one square foot is 0.09290304 square metres. Acres and hectares measure land area; these factors do not depend on the shape of a plot.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Every output represents the same area in a different unit. Square-unit conversions use squared length factors, so they differ from ordinary length conversions.
When this tool is useful
Convert land or floor area when specifications use different metric and imperial units.
Understanding your inputs
| Input | What to enter |
|---|---|
| Value (m²) | Enter a number of at least 0 and no more than 1000000000000. |
Frequently asked questions
How many square metres are in a hectare?
Exactly 10,000. A hectare is a 100 metre by 100 metre area.
Is a square foot 0.3048 square metres?
No. One foot is 0.3048 metres, so one square foot is 0.3048² = 0.09290304 square metres.