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Area Converter

Popular Area Unit Conversions

Area Converter — Convert Square Meters, Acres, Hectares & More

Our free online Area Converter lets you instantly convert between 38+ units of area — from everyday metric and imperial units to land measurement, agricultural, and scientific units. Whether you need to convert square meters to square feet, acres to hectares, square kilometers to square miles, or square inches to square centimeters, this tool delivers fast and accurate results instantly.

Area measures the two-dimensional size of a surface. It is used in real estate, agriculture, mapping, architecture, and science. Units span multiple systems:

  • Metric (SI): square meter (m²), square kilometer (km²), square centimeter (cm²), square millimeter (mm²), hectare (ha)
  • Imperial / US customary: square mile, square yard, square foot, square inch, acre
  • Agricultural: hectare, are, rood, section, township, homestead
  • Surveying: square rod, square chain, square perch, square pole
  • Scientific: barn (nuclear cross-section), electron cross section

All conversions use internationally standardized SI factors and high-precision arithmetic, making this tool reliable for real estate, farming, construction, mapping, and everyday calculations.

Common Area Conversion Reference

Here are the most frequently used area conversions for quick reference:

  • 1 square meter = 10.7639 square feet = 10,000 square centimeters
  • 1 hectare = 10,000 square meters = 2.47105 acres = 107,639 square feet
  • 1 acre = 4,046.86 square meters = 0.404686 hectares = 43,560 square feet
  • 1 square kilometer = 1,000,000 square meters = 247.105 acres = 0.386102 square miles
  • 1 square mile = 2.58999 square kilometers = 640 acres = 27,878,400 square feet
  • 1 square foot = 0.0929030 square meters = 144 square inches
  • 1 square yard = 0.836127 square meters = 9 square feet
  • 1 are = 100 square meters = 0.0247105 acres

Frequently Asked Questions — Area Converter

Question: How do I use the Area Converter?

Answer: Select the unit you are converting from in the left list and the unit to convert to in the right list, then type your value. The result appears instantly across all listed units.

Question: How many square feet are in an acre?

Answer: One acre equals exactly 43,560 square feet. This is the standard definition used in the US and UK. One acre is also equal to 4,047 square meters or about 0.405 hectares.

Question: What is the difference between a hectare and an acre?

Answer: A hectare is a metric unit equal to 10,000 square meters (100m × 100m). An acre is an imperial unit equal to 4,046.86 square meters. One hectare equals approximately 2.471 acres. Hectares are used internationally; acres are common in the US and UK.

Question: How many acres are in a square mile?

Answer: There are exactly 640 acres in one square mile. One square mile is also equal to 2.58999 square kilometers or 258.999 hectares.

Question: How do I convert square meters to square feet?

Answer: Multiply the number of square meters by 10.7639 to get square feet. For example, 50 m² × 10.7639 = 538.2 square feet. The converter above gives the same instant result.

Question: What is a hectare?

Answer: A hectare (ha) is the standard metric unit for measuring large land areas. It equals 10,000 square meters, 100 ares, or approximately 2.471 acres. It is widely used in agriculture, real estate, and mapping worldwide.

Question: How many square centimeters are in a square meter?

Answer: There are exactly 10,000 square centimeters in one square meter (100 cm × 100 cm). The area relationship is the square of the length relationship: since 1 m = 100 cm, 1 m² = 100² cm² = 10,000 cm².

Question: What is a barn in area measurement?

Answer: A barn (b) is a unit of area used in nuclear and particle physics. One barn equals 10⁻²⁸ square meters (10⁻²⁴ cm²). It represents the approximate cross-sectional area of a uranium nucleus and is used to express nuclear reaction cross-sections.

Question: How accurate are the area conversions in this tool?

Answer: All conversions use internationally standardized conversion factors with up to 12 significant digits of precision, making results suitable for real estate, agriculture, engineering, and scientific applications.