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