Convert square meters to square kilometers
Converting square meters to square kilometers is a common area task, whether you are checking a recipe, a spec sheet, a travel distance or a homework problem. Since 1 m² equals 0.000001 km², the math is a single multiplication — and this page does it for you instantly, with the formula, a table of common values and answers to the questions people ask most.
Exact factor
How to convert square meters to square kilometers
To convert square meters to square kilometers, multiply the number of square meters by 0.000001. For example, 10 m² × 0.000001 = 0.00001 km².
km² = m² × 0.000001
- Write down the value in square meters you want to convert.
- Multiply it by 0.000001 (the exact m²→km² factor).
- The result is your value in square kilometers. Check it below with the converter or the table.
Conversion table
Common values of square meters and their equivalents in square kilometers:
| m² | km² |
|---|---|
| 1 | 0.000001 |
| 2 | 0.000002 |
| 3 | 0.000003 |
| 4 | 0.000004 |
| 5 | 0.000005 |
| 10 | 0.00001 |
| 20 | 0.00002 |
| 25 | 0.000025 |
| 50 | 0.00005 |
| 100 | 0.0001 |
| 250 | 0.00025 |
| 500 | 0.0005 |
About these units
Square Meter (m²). The square meter is the SI derived unit of area, a square with one-meter sides. Apartments, offices and building floor plans are measured in square meters.
Square Kilometer (km²). A square kilometer equals one million square meters, or 100 hectares. Cities, lakes and countries are measured in square kilometers.
Frequently asked questions
How do I convert square meters to square kilometers?
To convert square meters to square kilometers, multiply the number of square meters by 0.000001. For example, 10 m² × 0.000001 = 0.00001 km². Or skip the math: type the value into the converter at the top of this page and the result updates instantly.
How many square kilometers are in 1 square meter?
1 m² = 0.000001 km². That is the fixed relationship used by this converter and by international standards.
How many square meters are in 1 square kilometer?
1 km² = 1,000,000 m². If you are converting in the opposite direction, use our Square Kilometer to Square Meter converter for the dedicated table and FAQ.
Is the square meters to square kilometers conversion exact?
Yes. Both units are defined by international agreement, so the factor of 0.000001 is exact. Displayed results are rounded to 6 significant digits only for readability.
What is square meter used for?
The square meter is the SI derived unit of area, a square with one-meter sides. Apartments, offices and building floor plans are measured in square meters.