Area Converter
Convert any area between square millimeters, square centimeters, square meters, square kilometers, square inches, square feet, square yards, acres and hectares. Typed input accepts decimals and scientific notation; results are shown to a precision that matches typical real estate, cartography or engineering needs.
How to convert between area units
-
1
Enter the area value
Type any positive number: decimal (1.5), integer (2500), or scientific (1.2e6 for 1,200,000) all work.
-
2
Pick the source unit
The unit you are starting from. Common ones: m², ft², acres, hectares.
-
3
Pick the target unit
The unit you want the answer in. The tool can also show all major unit equivalents at once.
-
4
Copy the result
Grab the converted value for paperwork, a listing, a grant application or a homework problem.
Major area units and exact factors
| Unit | = m² | = ft² | Typical use |
|---|---|---|---|
| 1 m² | 1 | 10.7639 | SI default |
| 1 ft² | 0.09290304 | 1 | US/UK floor area |
| 1 yd² | 0.83612736 | 9 | US/UK lot, carpet |
| 1 in² | 0.00064516 | 0.006944 | Component spec |
| 1 acre | 4,046.8564224 | 43,560 | Rural land (US/UK) |
| 1 hectare (ha) | 10,000 | 107,639 | Rural land (EU/Asia) |
| 1 are | 100 | 1,076.39 | Allotment (EU historical) |
| 1 km² | 1,000,000 | 10,763,910 | Regions, countries |
| 1 mi² (stat) | 2,589,988.11 | 27,878,400 | US counties, land parcels |
Unit usage by country
- US, UK, Canada, Australia (older): square feet for buildings, acres for land.
- EU, China, Japan, Korea: square meters for buildings, hectares for land.
- India: mix of hectares, bigha (varies by state, ~2,500-6,800 m²) and katha (regional).
- Japan: tsubo (3.3058 m²) for real estate in addition to m².
- Thailand: rai (1,600 m²) is the dominant land unit.
Quick mental conversions
- 1 acre ≈ 0.4 hectares (rough factor 0.4)
- 1 m² ≈ 10.76 ft² (rough factor 10.7)
- 10 m² ≈ 108 ft² (a small bedroom)
- 100 m² ≈ 1,076 ft² (a typical small apartment)
- 1 ha ≈ 2.47 acres (rough factor 2.5)
- 1 km² ≈ 247 acres ≈ 0.386 mi²
Why surveying sometimes uses “US survey foot”
The US survey foot (1200/3937 m, roughly 0.3048006 m) differs from the international foot (exactly 0.3048 m) by 2 parts per million. For everyday conversions the difference is invisible, but for legal land surveys and geodetic work in some US states it matters. The US officially retired the survey foot at the end of 2022.
Frequently Asked Questions
Exactly 1 m² = 10.76391041671 ft². The factor comes from squaring the foot-to-meter conversion (0.3048 m/ft). For casual estimates, use 10.76.
1,000 ft² = 92.903 m². Roughly the size of a two-bedroom apartment in North America or a one-bedroom in a European city.
Almost never for residential. Federal agriculture statistics and international comparisons use hectares. Private US real estate listings are almost always in square feet or acres.
All three mean the same. “ft²” is the SI-style superscript notation. “sq ft” is the traditional English abbreviation. “sqft” is a compact variant popular in real estate websites. Use whichever your audience expects.
Related Tools
BMI Calculator
Calculate body mass index from height and weight. Shows WHO category, healthy-weight range and limitations of BMI.
Social Security Calculator
Estimate a US Social Security retirement benefit from your PIA and claiming age. Compare monthly and annual amounts at 62, FRA 67 and 70.
Age Calculator
Calculate exact age in years, months and days from a birth date, plus total days, hours and the next birthday countdown.
Amp-Hour Calculator
Work out battery runtime and stored energy from amp-hours, voltage and load current. Get runtime in hours and minutes plus energy in watt-hours and kilowatt-hours.
Scientific Calculator
Evaluate supported real-number expressions with trig, logs, powers and parentheses locally in your browser.
Dog Age Calculator
Convert your dog's age to human years using modern veterinary research. Breed-size aware: small, medium and large dogs age differently.