Acre to Square Foot Conversion Calculator: Free Online Tool
Convert acres to square feet with our free online area converter.
Acre to Square Foot Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Acre).
- The converted value in Square Foot 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 Foot
Converting Acre to Square Foot involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Acre = 43560 square feetExample Calculation:
Convert 10 acres: 10 × 43560 = 435600 square feet
Note: Conversion factors can sometimes be rounded for display purposes. For precise calculations, always use the full factor or rely on the calculator above.
What is a Acre and a Square Foot?
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 foot (symbol: ft², sq ft) is an imperial and US customary unit of area. It represents the area of a square with sides that are each one foot 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 Foot belongs to the imperial/US customary system.
History of the Acre and Square Foot
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 from the foot, a unit of length with historical roots in various ancient civilizations, the square foot became a standard measure of area in systems using the foot, particularly in the British Empire and subsequently the United States. It remains widely used in these regions, especially in construction and real estate.
Common Uses for acres and square feet
Explore the typical applications for both Acre (imperial/US) and Square Foot (imperial/US) 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 feet
- Real Estate & Construction (US/UK): The primary unit for measuring floor space in residential and commercial buildings, room sizes, and smaller land parcels in the US, UK, Canada, and some other countries.
- Home Improvement: Used for calculating materials needed for flooring, tiling, painting walls, etc.
- Gardening & Landscaping (US/UK): Estimating the area for small gardens, lawns, or patios.
- Art & Photography: Sometimes used to specify the dimensions or area of artwork or prints.
Frequently Asked Questions
Questions About Acre (ac)
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 Foot (ft²)
How big is a square foot?
It's the area of a square measuring 1 foot by 1 foot (or 12 inches by 12 inches).
How many square inches are in a square foot?
There are 144 square inches in one square foot (12 inches x 12 inches).
How many square feet are in a square meter?
One square meter contains approximately 10.764 square feet. Conversely, one square foot is about 0.0929 square meters.
Where is the square foot mainly used?
It is primarily used in the United States, Canada, the United Kingdom, and several other countries influenced by the imperial system, mainly for construction and real estate.
Conversion Table: Acre to Square Foot
| Acre (ac) | Square Foot (ft²) |
|---|---|
| 1 | 43,560 |
| 5 | 217,800 |
| 10 | 435,600 |
| 25 | 1,089,000 |
| 50 | 2,178,000 |
| 100 | 4,356,000 |
| 500 | 21,780,000 |
| 1,000 | 43,560,000 |