Acre to Square Meter Conversion Calculator: Free Online Tool
Convert acres to square meters with our free online area converter.
Acre to Square Meter Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Acre).
- The converted value in Square Meter will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Area category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Acre to Square Meter
Converting Acre to Square Meter involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Acre = 4046.856 square metersExample Calculation:
Convert 10 acres: 10 × 4046.856 = 40468.56 square meters
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
What is a Acre and a Square Meter?
The acre (symbol: ac) is a unit of land area used in the imperial and US customary systems. It is traditionally defined as the area of one chain by one furlong (66 by 660 feet), which is exactly equal to 1/640 of a square mile, 43,560 square feet, or about 4,047 square meters.
The square meter (symbol: m²) is the SI derived unit of area. It represents the area of a square with sides that are each one meter long.
Note: The Acre is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Square Meter belongs to the metric (SI) system.
History of the Acre and Square Meter
The acre originated in medieval England as the amount of land tillable by one man behind one ox in one day. Its size varied historically but was standardized under the Weights and Measures Act of 1878 in the UK. It remains a common unit for land measurement in several countries, especially for agricultural and large residential plots.
Derived directly from the meter, which was defined during the French Revolution, the square meter became the standard unit of area within the International System of Units (SI) established in 1960. Its adoption provided a consistent, universally accepted measure for scientific, technical, and everyday area calculations.
Common Uses for acres and square meters
Explore the typical applications for both Acre (imperial/US) and Square Meter (metric) to understand their common contexts.
Common Uses for acres
- Land Measurement (US/UK etc.): Standard unit for measuring plots of land, especially farms, large residential lots, and undeveloped land in the US, UK, Canada, Australia, India, and other Commonwealth countries.
- Real Estate: Used in property listings and surveys for land parcels.
- Agriculture: Common unit for describing farm sizes and field areas.
Common Uses for square meters
- Real Estate & Construction (Metric): Standard unit for measuring floor space in buildings, room sizes, and land parcels in countries using the metric system.
- Science & Engineering: Used extensively in physics (e.g., calculating pressure = force/area), material science, and various engineering fields for surface area calculations.
- Textiles & Manufacturing: Measuring the area of fabrics, paper, or other sheet materials.
- Gardening & Landscaping: Estimating the area for planting, paving, or turfing small to medium-sized plots.
Frequently Asked Questions
Questions About Acre (acre)
How big is an acre visually?
An acre is roughly 90% of the size of an American football field (including the end zones).
How many square feet are in an acre?
There are exactly 43,560 square feet in one acre.
How many acres are in a hectare?
One hectare contains approximately 2.471 acres.
Is the acre used worldwide?
While common in the US, UK, and Commonwealth countries, it is not part of the metric system (SI) and is less common globally than the hectare or square meter for land measurement.
About Square Meter (m²)
What is the base SI unit for area?
The square meter (m²) is the SI derived unit for area.
How big is a square meter?
It's the area of a square where each side is exactly one meter long. Imagine a square roughly the size of a large beach towel.
How many square feet are in a square meter?
One square meter is approximately 10.764 square feet.
Is the square meter used worldwide?
Yes, it is the standard unit of area in the vast majority of countries that use the metric system and is the standard in science and engineering globally.
Conversion Table: Acre to Square Meter
| Acre (acre) | Square Meter (m²) |
|---|---|
| 1 | 4,046.856 |
| 5 | 20,234.282 |
| 10 | 40,468.564 |
| 25 | 101,171.411 |
| 50 | 202,342.821 |
| 100 | 404,685.642 |
| 500 | 2,023,428.211 |
| 1,000 | 4,046,856.422 |