The complete guide to the area converter
Area is one of the most common measurements in everyday life, and yet it is also one of the easiest to get wrong. A floor plan listed in square meters, a plot of farmland measured in acres, a carpet quoted in square yards, and a Korean apartment described in pyeong all describe the same physical concept — how much surface a shape covers — but in completely different units. This area converter turns any of those values into another instantly, while showing you the exact conversion factor so you can check the result yourself.
Whether you are comparing real-estate listings across countries, planning a garden, ordering flooring, or simply trying to picture how big "two hectares" really is, converting accurately between metric and imperial area units saves you from costly mistakes.
Metric vs. imperial area units
Area units fall into two broad families. The metric system is built around the square meter (m²), with the hectare (10,000 m²) and square kilometer (1,000,000 m²) used for larger areas. The imperial / US customary system is built around the square foot (ft²), with the square yard, acre, and square mile used at larger scales. Most of the world uses metric units, while the United States and, to a lesser extent, the United Kingdom still rely heavily on imperial area units for property and land.
Because the two systems do not share a common base, conversions require fixed multipliers. This tool always converts your input to square meters first and then to the target unit, which keeps every result mathematically consistent no matter which pair of units you choose.
Key conversion factors
- 1 m² = 10.7639 ft² = 1.19599 yd²
- 1 ft² = 0.09290304 m² (exact)
- 1 square yard = 0.83612736 m² (exact)
- 1 acre = 4,046.8564224 m² = 0.404686 hectares
- 1 hectare = 10,000 m² = 2.47105 acres
- 1 square kilometer = 1,000,000 m² = 0.386102 square miles
- 1 pyeong (평) = 3.305785 m² ≈ 35.583 ft²
What is a pyeong (평)?
The pyeong is a traditional unit of area used across East Asia and still extremely common in Korean real estate. One pyeong is approximately 3.305785 square meters — historically defined as a square measuring about 1.818 meters on each side, roughly the floor space of two tatami mats. Although South Korea officially adopted the square meter for property transactions in 2007, buyers, sellers, and agents continue to describe apartments in pyeong because the unit feels intuitive: a "24-pyeong apartment" or a "34-pyeong apartment" instantly signals a familiar home size.
For travelers, expats, and anyone reading Korean property listings, converting pyeong to square meters (or square feet) is essential. As a quick rule of thumb, multiply pyeong by 3.3 for a fast estimate, or use this converter for an exact figure. For example, 24 pyeong ≈ 79.34 m² ≈ 854 ft², and 84 m² ≈ 25.4 pyeong.
Practical examples
Here are some real-world conversions to help you build intuition:
- A small studio apartment of 33 m² is about 355 ft² or roughly 10 pyeong.
- A typical family apartment of 112 m² is about 1,206 ft² or roughly 34 pyeong.
- A standard residential lot of 0.25 acres is about 1,012 m² or 0.10 hectares.
- A soccer pitch of about 7,140 m² is roughly 0.71 hectares or 1.76 acres.
- A square kilometer is 100 hectares, or about 247 acres — a useful scale for parks and neighborhoods.
How to read property areas
When comparing homes across countries, always confirm which area figure a listing uses. In many markets the headline number is the "gross" or "supply" area, which includes shared spaces such as hallways, stairwells, and elevator lobbies, while the usable "net" or "exclusive" area — the space inside your front door — is smaller. As a rough guide, the usable area of an apartment is often only 70–80% of the advertised gross area. When converting between units, the math stays the same, but knowing which area is being quoted helps you compare like with like.
Frequently asked questions (FAQ)
Q. How do I convert square meters to square feet?
A. Multiply the number of square meters by 10.7639. For example, 100 m² = 1,076.39 ft². To convert in reverse, multiply square feet by 0.092903 to get square meters.
Q. What is a pyeong and how do I convert it?
A. A pyeong (평) is a Korean unit of area equal to about 3.305785 m². Multiply pyeong by 3.305785 to get square meters, or divide square meters by 3.305785 to get pyeong. So 30 pyeong ≈ 99.17 m².
Q. How many square meters are in an acre?
A. One acre equals exactly 4,046.8564224 m², or about 0.4047 hectares. An acre is roughly the size of a standard American football field minus the end zones.
Q. What is the difference between a hectare and an acre?
A. A hectare is the metric unit of 10,000 m², while an acre is the imperial unit of 4,046.86 m². One hectare equals about 2.471 acres, making a hectare roughly two and a half times larger than an acre.
Q. Are these conversions exact?
A. The tool uses internationally standardized factors and converts every value through square meters as a base unit, so results are accurate for both everyday estimates and technical work. Values are rounded for display but calculated at full precision.