Area converter
Square meters, square feet, acres and hectares, converted as you type.
Options
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Raw value:
In every unit
| Unit | Value |
|---|---|
| Square millimeter (mm²) | – |
| Square centimeter (cm²) | – |
| Square meter (m²) | – |
| Are (a) | – |
| Hectare (ha) | – |
| Square kilometer (km²) | – |
| Square inch (in²) | – |
| Square foot (ft²) | – |
| Square yard (yd²) | – |
| Acre (ac) | – |
| Square mile (mi²) | – |
kB, MB, GB and TB are decimal (1 kB = 1000 B), as on drive labels and mobile plans. KiB, MiB, GiB and TiB are binary (1 KiB = 1024 B), as Windows shows file sizes. Bits are for connection speeds; 8 bits make a byte.
A month is the average Gregorian month of 30.436875 days and a year is 365.2425 days; calendar months and years vary.
US units follow the US customary system (1 gal = 3.785 L, 1 cup = 236.6 mL); UK units follow the imperial system (1 gal = 4.546 L).
Other versions
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Unit converter
Type a value, pick two units and see the result and a table of every unit in the group. -
Length converter
Millimeters to nautical miles, with a table of every unit as you type. -
Weight converter
Kilograms, pounds, ounces, stones and tonnes, converted as you type. -
Temperature converter
Celsius, Fahrenheit and kelvin in both directions, with the formulas shown. -
Volume converter
Milliliters, liters, US and UK gallons, cups and fluid ounces, converted as you type. -
Speed converter
Kilometers per hour, miles per hour, knots, m/s and ft/s, converted as you type. -
Time converter
From nanoseconds to years, converted as you type, with the average month and year stated. -
Data size converter
Bytes, kB, MB, GB, KiB, MiB, GiB and bits, with 1000 and 1024 kept apart.
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Area matters when you compare things that are listed in different units: a flat of 65 m² against one advertised at 700 sq ft, a plot of land in acres against a field in hectares, a national park in square kilometers against a county in square miles. Type the area, choose the units and read the result as you type; the table shows the same area in all eleven units, so 65 m² is 699.65 ft², 77.74 yd² and 0.0065 ha at once. Because area is length squared, every factor is the squared length factor, so an inch of 2.54 cm gives a square inch of 6.4516 cm² exactly. Nothing leaves the page.
How to use
- Type the area, for example 65.
- Pick the unit you have and the unit you want; square meters to square feet is preset.
- Swap them to convert the other way.
- Check hectares, acres or square yards in the table.
What it handles
- Eleven units: mm², cm², m², are, hectare, km², in², ft², yd², acre and mi².
- Exact factors from the squared length definitions: 1 ft² = 0.09290304 m², 1 acre = 4046.8564224 m².
- The are (100 m²) and the hectare (10 000 m²) are included for land registers and farming.
- Tiny results switch to scientific notation, so 1 mm² in square miles reads as 3.861e-13 rather than a row of zeros.
FAQ
How many square feet are in a square meter?
10.7639 square feet. So a 65 m² flat is about 700 sq ft and a 100 m² house is about 1076 sq ft. Going the other way, one square foot is 0.0929 m², so divide square feet by 10.764 to get square meters. The table on this page does both directions at once.
What is the difference between an acre and a hectare?
A hectare is 10 000 m², a square of 100 m by 100 m. An acre is 4046.86 m², about 0.4047 ha, so a hectare is roughly two and a half acres. Hectares are used in most of the world and in official statistics; acres remain common in the US, the UK and in land listings written in English.
Can I convert a length in feet into square feet?
Not directly: area needs two lengths. Multiply the length by the width in the same unit first, and then convert the area. A room of 4 m by 3.5 m is 14 m², which this page turns into 150.7 ft². If the sides are in different units, convert one of them on the length page before multiplying.
Why does a small number show as 3.861e-13?
That is scientific notation, meaning 3.861 × 10⁻¹³, because writing out twelve zeros after the decimal point would be unreadable. The page switches to it below 0.000001 and from 1 000 000 000 000 000 up. The raw value uses the same form with an e, which spreadsheets and programming languages read as a number.
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