Area Converter
Enter any positive number. Decimals are supported.
Enter a Value to Convert
Type an area value, choose your From and To units, and the converted result will appear here instantly — along with a full all-units table and real-world size comparisons.
How to Use the Area Converter
Enter Your Area Value
Type any positive number in the 'Value to Convert' field. The converter accepts whole numbers and decimals. For example, enter '2.5' to convert 2.5 acres to another unit.
Choose From and To Units
Select your source unit in the 'From Unit' dropdown and the target unit in the 'To Unit' dropdown. Use the swap button (the double-arrow icon) to instantly reverse the direction of conversion. Or use one of the quick-conversion shortcut buttons for the most popular pairs like Sq Ft to Sq M.
Read Your Results
The converted value appears at the top of the results panel along with the conversion formula and a step-by-step breakdown. Scroll down to see the all-units table (showing your value in every supported unit) and the real-world size comparisons.
Adjust Precision and Export
Use the decimal precision buttons to control how many decimal places appear in results — choose from nearest 1, 1 d.p., 2 d.p., 4 d.p., or full precision. Click 'Copy Result' to copy the converted value to clipboard, 'Export CSV' to download all units as a spreadsheet, or 'Print' for a printer-friendly version.
Frequently Asked Questions
How many square feet are in an acre?
There are exactly 43,560 square feet in one acre. This is a commonly needed conversion in US real estate, where property sizes are often advertised in acres but buyers may want to understand the area in square feet for comparison. To convert acres to square feet, simply multiply the acreage by 43,560. For example, a 0.5-acre lot equals 21,780 square feet. You can use this Area Converter to quickly verify any acreage-to-square-feet conversion with full decimal precision.
What is the difference between a hectare and an acre?
A hectare is a metric unit equal to 10,000 square meters (100m × 100m), while an acre is an imperial unit equal to 4,046.856 square meters. This means one hectare equals approximately 2.471 acres, or conversely, one acre is about 0.4047 hectares. Hectares are the standard land measurement unit in most of the world, used in agriculture, forestry, and land planning. Acres remain common in the United States, United Kingdom, Canada, and several other countries, especially for farmland and real estate.
How do I convert square meters to square feet?
To convert square meters to square feet, multiply the number of square meters by 10.7639. For example, 50 square meters equals 50 × 10.7639 = 538.2 square feet. This conversion is essential when comparing property sizes between countries — European real estate listings use square meters, while American listings use square feet. The reverse is also straightforward: to convert square feet to square meters, divide by 10.7639 (or multiply by 0.0929). This Area Converter does the math instantly and displays the full step-by-step calculation.
What is a rood and how big is it?
A rood is a traditional English unit of land area equal to one quarter of an acre, or approximately 1,011.71 square meters. The term was widely used in England and Wales from medieval times until the mid-20th century and can still appear in old property deeds and historical land records. One rood is also equal to 40 square rods or 10 square chains. While rarely used in modern practice, knowing the rood is helpful when researching historical property records, especially in the United Kingdom and parts of the Commonwealth.
How many square miles are in a square kilometer?
One square kilometer equals approximately 0.3861 square miles. Conversely, one square mile equals approximately 2.590 square kilometers. This conversion is frequently needed when comparing geographic areas between countries using different measurement systems — for example, comparing the size of US national parks (often cited in square miles) to European nature reserves (typically in square kilometers or hectares). One square mile equals 640 acres and is also called a 'section' in the US Public Land Survey System.
Can I convert between very small areas like square millimeters and square centimeters?
Yes, the Area Converter fully supports small metric units including square millimeters (mm²), square centimeters (cm²), and square meters. These are commonly needed in engineering, electronics, and manufacturing. One square centimeter equals 100 square millimeters, and one square meter equals 10,000 square centimeters. For very precise conversions, use the 'Full' precision setting to see the complete floating-point result. The barn unit (1 barn = 10⁻²⁸ m²) is also included for nuclear physics applications, though its values are astronomically small compared to everyday units.