Square Meter Converter
Enter any area value, choose your starting unit and your target unit, and get an instant result with the full calculation shown. Convert square meters to square feet, acres, hectares, square kilometers, and nine other units in both directions. The steps panel shows the conversion factor and arithmetic used, so you can check the math or use the formula yourself.
How to convert square meters to other area units
Every area conversion uses a single multiplication step: take your area value, multiply by the conversion factor, and you have the result in the new unit. The conversion factor between any two area units is simply the ratio of their definitions relative to the square meter. For example, one square foot equals 0.09290304 m², so to convert 50 m² to square feet you multiply 50 by the reciprocal: 50 / 0.09290304 = 538.2 ft². Going the other way, 538.2 ft² x 0.09290304 = 50 m². The calculator above applies this logic instantly for all ten supported units.
Metric area units explained
The metric system defines area units by squaring its length units. One square centimeter (cm²) is a 1 cm x 1 cm square, equal to 0.0001 m². One square kilometer (km²) is 1,000 m x 1,000 m = 1,000,000 m². The hectare (ha), the most common unit for land area in metric countries, equals exactly 10,000 m² or 0.01 km², corresponding to a 100 m x 100 m square. You will encounter hectares in agriculture, forestry, and real estate throughout Europe, Asia, and most of the world outside the US.
Imperial and US area units explained
The imperial system builds its area units on inches, feet, yards and miles. One square foot is 144 square inches; one square yard is 9 square feet; one square mile is 640 acres. The acre, the most commonly used land unit in the US, UK, and Canada, equals 4,046.856 m² and has no simple whole-number relation to square feet or yards (it is defined as 66 feet x 660 feet, i.e., a chain by a furlong). When comparing land prices internationally you will often need to convert acres to hectares (1 acre = 0.4047 ha) or vice versa.
Practical reference: real-world area comparisons
Knowing the scale of common spaces helps when reading floor plans, land listings, or agricultural data. A typical parking space is about 15 m² (161 ft²). A standard basketball court is 420 m² (4,520 ft²). A soccer pitch is roughly 7,140 m² (1.76 acres or 0.714 ha). Central Park in New York is about 3.41 km² (341 ha or 843 acres). A standard shipping container floor is 14.86 m² (160 ft²). These benchmarks can anchor your conversion results to something tangible.
Area unit conversion factors (to square meters)
| Unit | Symbol | 1 unit = m² | 1 m² = unit |
|---|---|---|---|
| Square millimeter | mm² | 0.000001 | 1,000,000 |
| Square centimeter | cm² | 0.0001 | 10,000 |
| Square meter | m² | 1 | 1 |
| Square kilometer | km² | 1,000,000 | 0.000001 |
| Square inch | in² | 0.00064516 | 1,550.0031 |
| Square foot | ft² | 0.09290304 | 10.7639 |
| Square yard | yd² | 0.83612736 | 1.19599 |
| Square mile | mi² | 2,589,988.11 | 0.000000386 |
| Acre | ac | 4,046.856 | 0.000247105 |
| Hectare | ha | 10,000 | 0.0001 |
Multiply any unit by its factor to convert to square meters (m²). Divide to reverse the conversion.
Frequently asked questions
How many square feet are in a square meter?
One square meter equals approximately 10.7639 square feet. To convert square meters to square feet, multiply by 10.7639. To go the other way, divide square feet by 10.7639 (or multiply by 0.09290304).
How do I convert square meters to acres?
Divide the number of square meters by 4,046.856 to get acres. For example, 10,000 m² / 4,046.856 = 2.471 acres. To convert acres to square meters, multiply by 4,046.856.
What is the difference between a hectare and a square kilometer?
A hectare (ha) equals 10,000 m², while a square kilometer (km²) equals 1,000,000 m². So 1 km² = 100 ha. Hectares are typically used for smaller land parcels like farms and parks, while square kilometers are used for cities, regions, or countries.
How many square meters are in an acre?
One acre equals 4,046.8564224 square meters. This is exactly defined as 43,560 square feet x 0.09290304 m² per square foot. For a quick estimate, 4,047 m² per acre is accurate to six significant figures.
How do I convert a room dimension in feet to square meters?
Multiply the length and width in feet to get square feet, then divide by 10.7639 (or multiply by 0.09290304) to get square meters. For example, a 12 ft x 15 ft room is 180 ft², which is 180 x 0.09290304 = 16.72 m².
Can I convert square meters to linear meters?
Only if you know one dimension. Area = length x width, so if you divide the area in square meters by the known width in meters, you get the length in meters. For example, 50 m² of flooring that is 4 m wide covers 50 / 4 = 12.5 linear meters. You cannot do this without knowing at least one dimension.
What is the formula for converting between any two area units?
Convert the source value to square meters first by multiplying by its factor (e.g., 1 ft² = 0.09290304 m²), then divide by the target unit factor (e.g., 1 yd² = 0.83612736 m²). The formula is: Result = Value x (source factor / target factor). The calculator does this automatically for any pair of the ten supported units.