Area Converter: m², Acres, Hectares, Square Feet
By Hesaplayıcı
The area converter converts an area between square meters, hectares, acres, square feet, square miles, decares (dönüm) and other units. Enter the value and choose the two units. You get the result and the same area in all twelve units. The factors come from the international definitions: one acre is exactly 4,046.8564224 square meters.
Worked example: How many square meters is 1 decare (dönüm)?
Result
1,000 m²
In other units
- Square millimeter
- 1,000,000,000 mm²
- Square centimeter
- 10,000,000 cm²
- Are
- 10 a
- Decare (dönüm)
- 1 daa
- Hectare
- 0.1 ha
- Square kilometer
- 0.001 km²
- Square inch
- 1,550,003.1 in²
- Square foot
- 10,763.91 ft²
- Square yard
- 1,195.99 yd²
- Acre
- 0.25 ac
- Square mile
- 0.000386 mi²
Step by step
factor = from unit (m²) / to unit (m²)
factor = 1,000 / 1 = 1,000
Result
result = value × factor
result = 1 × 1,000 = 1,000 m²
How to use
- Enter the Area you want to convert.
- In From, choose the unit of the value.
- In To, choose the unit of the result and press Calculate.
Formula
result = value × factor, where factor = from unit in square meters / to unit in square meters.
The size of each unit in square meters is exact by definition:
- 1 mm² = 0.000001 m²; 1 cm² = 0.0001 m²; 1 km² = 1,000,000 m²
- 1 are = 100 m²; 1 decare (dönüm) = 1,000 m²; 1 hectare = 10,000 m²
- 1 square inch = 6.4516 cm²; 1 square foot = 0.09290304 m²; 1 square yard = 0.83612736 m²
- 1 acre = 43,560 square feet = 4,046.8564224 m²
- 1 square mile = 640 acres = 2,589,988.110336 m²
The inch, foot, yard and mile are the international ones, so their squares follow exactly.
Worked example
The worked example on this page converts 1 decare (dönüm) to square meters. The first step gives the factor between the two units; the second gives the result.
Limits
The dönüm is the Turkish dönüm of 1,000 m², the decare. The old dönüm and other regional sizes, the US survey acre and the area of a shape are not included. Negative areas are not accepted. Results are rounded to 12 significant digits; the page may shorten very small numbers, while the API and MCP return every digit.
Frequently Asked Questions
How many square meters are in an acre?
An acre is 43,560 square feet, which is exactly 4,046.8564224 square meters, or about 0.405 hectares.
How many acres are in a hectare?
A hectare is 10,000 square meters, which is about 2.471 acres.
How many square feet are in a square meter?
A square foot is exactly 0.09290304 square meters, so a square meter is about 10.764 square feet.
What is a dönüm or a decare?
A decare is 1,000 square meters, or a tenth of a hectare. In Türkiye the dönüm used in official records today is the same as the decare.
Calculation rules
- The metric area units: 1 are = 100 m², 1 decare = 1,000 m², 1 hectare = 10,000 m², 1 km² = 1,000,000 m².
- The decare is the Turkish dönüm of 1,000 m² used in official records today. The old dönüm and other regional sizes of the dönüm are not used.
- The inch, foot, yard and mile are the international ones (1 inch = 2.54 cm), so their squares are exact too: 1 square foot = 0.09290304 m². 1 acre = 43,560 square feet = 4,046.8564224 m². The US survey acre is not used.
- Results are rounded to 12 significant digits, which only removes tiny floating-point errors. The page may shorten numbers; the API and MCP return all 12 digits.