An area converter takes a known area measurement — square feet, square meters, acres, hectares, or other regional land units — and converts it accurately to any other area unit. This page covers how this converter works, common area unit conversions, land measurement units like acres and hectares, and an important distinction: converting an area between units (what this tool does) versus calculating the area of a shape from its dimensions (a different type of calculation). Browse all converters if you need a different tool.
How This Area Converter Works
The Conversion Method
Every area unit converts through a common base unit (square meters), keeping conversions consistent across dozens of possible unit pairs — square feet, square meters, square yards, acres, hectares, and more — using precise conversion factors. The international acre to square meter factor this converter uses is exactly 4,046.8564224 m² (NIST Guide to the SI, Appendix B.8, international foot).
Square Feet, Square Meters, and Square Yards
The most commonly converted area units in everyday and real estate contexts are square feet, square meters, and square yards:
- 1 square meter = 10.7639 square feet
- 1 square foot = 0.092903 square meters
- 1 square yard = 9 square feet
Common Area Unit Conversions
Example: Converting 5,000 sq ft to Acres
1 acre = 43,560 sq ft
5,000 ÷ 43,560 ≈ 0.115 acres
This type of conversion comes up constantly in real estate and land listings, where property size might be listed in square feet but compared against nearby land measured in acres.
Acres and Hectares: Land Area Units
Example: Converting 1 Hectare to Acres
1 hectare = 10,000 square meters
1 hectare ≈ 2.471 acres
Hectares are the standard metric unit for land area, commonly used outside the US, while acres remain the standard in US real estate and agriculture — this converter handles both directions accurately.
Regional Land Units: Katha and Others
Beyond the standard international units, some regions use their own traditional land measurement units — for example, "katha" is a traditional land area unit used across Bangladesh, parts of India, and Nepal, though its exact size varies by region (commonly ranging from about 720 to 1,361 square feet depending on the specific local standard used). For anyone converting a specific katha figure (like "3.5 katha") to square feet, it's worth confirming which regional katha standard applies, since there isn't one single universal conversion factor across all regions that use the unit. This converter does not currently include katha, bigha, marla, or other regional land units as selectable options.
Area Conversion Chart
| Unit | Square Meters |
|---|---|
| 1 square foot | 0.092903 m² |
| 1 square yard | 0.836127 m² |
| 1 acre | 4,046.86 m² |
| 1 hectare | 10,000 m² |
| 1 square kilometer | 1,000,000 m² |
| 1 square mile | 2,589,988 m² |
Calculating Area — A Different Kind of "Area" Question
Rectangle, Square, and Triangle Area Formulas
It's worth being clear about an important distinction: this tool converts a known area between units (like converting 5,000 sq ft to acres). It does NOT calculate the area of a shape from its dimensions — that's a different type of calculation with its own formulas per shape:
- Rectangle area: length × width
- Square area: side × side (or side²)
- Triangle area: (base × height) ÷ 2
If the goal is finding how many square feet a rectangular room, plot of land, or triangular space covers based on its dimensions, that's geometric area calculation, not unit conversion — this converter handles the conversion step once the shape's area has already been calculated using the formula appropriate to that shape. Length measurements for those formulas can be converted with the length converter. A dedicated geometric area calculator is not on this page; browse calculators for other tools.
Area of a Random or Irregular Shape
For an irregular or random shape (not a standard rectangle, square, or triangle), area is typically calculated by breaking the shape into simpler regular shapes, calculating each piece's area separately, then adding them together — or, for curved/complex boundaries, using more advanced methods like integration or a planimeter for physical measurements. This is a fundamentally different and more involved calculation than the standard formulas above.
Frequently Asked Questions
How do I convert square feet to acres?
Divide the square footage by 43,560, the number of square feet in an acre. For example, 5,000 square feet is approximately 0.115 acres.
How do I convert hectares to acres?
Multiply the hectare value by approximately 2.471. For example, 1 hectare equals approximately 2.471 acres.
How many square feet are in a katha?
It depends on the specific regional standard, since katha sizes vary by region, commonly ranging from 720 to 1,361 square feet.
Can this calculator find the area of a rectangle or triangle from its dimensions?
No. This tool converts a known area between units. Calculating a shape's area from its dimensions uses a different geometric formula specific to that shape.
What's the formula for a rectangle's area?
Area equals length multiplied by width.
What's the formula for a triangle's area?
Area equals base multiplied by height, divided by 2.
Does this converter support both metric and US area units?
Yes. It converts between square meters, square feet, square yards, acres, hectares, square kilometers, and square miles.
Is this area converter free to use?
Yes. It is free, requires no sign-up, and converts area units instantly.