Convert Square meters to Square kilometres
1 square meter is 0.000001 km². One square meter is exactly 0.000001 square kilometres.
One square meter is 1.0000 × 10^-6 square kilometres. To convert square meters to square kilometres, multiply by 1.0000 × 10^-6; to go the other way, divide by 1.0000 × 10^-6 or multiply by 1000000. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Office of Weights and Measures. A meter on a side, and about 10.764 square feet.
Factor checked against the defining standard · How we check
- Square meters × 1.0000 × 10^-6
1 * 0.0000010 km²
1 square meter in every area unit
| Unit | Value | Exact factor |
|---|---|---|
| square inches | 1,550.0031 sq in | × 1,550.00310001 |
| square feet | 10.76391042 sq ft | × 10.7639104167 |
| square yards | 1.195990046 sq yd | × 1.1959900463 |
| acres | 0.0002471053815 ac | × 0.000247105381467 |
| square meters (as entered) | 1 m² | — |
| square millimetres | 1,000,000 mm² | × 1,000,000 |
| square centimetres | 10,000 cm² | × 10,000 |
| square kilometres | 0.000001 km² | × 0.000001 |
| square miles | 0.0000003861021585 mi² | × 0.000000386102158542 |
| hectares | 0.0001 ha | × 0.0001 |
Factors are entered by hand from NIST Office of Weights and Measures rather than derived from a units library, so the ones that terminate are exact rather than rounded.
The same converter answers this pair however it is written: square metres to square kilometres is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change, and sqm to sqkm is how the symbols are typed on a keyboard with no superscript on it.
How do you convert square meters to square kilometres? The converter and the working
- 1.Take the measurement in square meters.
- 2.Multiply by 1.0000 × 10^-6 — that is how many square kilometres fit in one square meter.
- 3.To go back the other way, divide by 1.0000 × 10^-6, or multiply by 1000000.
Worked example: 25 square meters to square kilometres
- Formula
- m² × 1.0000 × 10^-6 = km²
- Arithmetic
- 25 × 1.0000 × 10^-6 = 0.000025 km²
- Answer
- 25 m² = 0.000025 km²
The factor is rounded for display; the figure above is computed from the full value.
Square meters to square kilometres conversion table
| Square meters | Square kilometres |
|---|---|
| 1 m² | 0.000001 km² |
| 2 m² | 0.000002 km² |
| 3 m² | 0.000003 km² |
| 4 m² | 0.000004 km² |
| 5 m² | 0.000005 km² |
| 6 m² | 0.000006 km² |
| 7 m² | 0.000007 km² |
| 8 m² | 0.000008 km² |
| 9 m² | 0.000009 km² |
| 10 m² | 0.00001 km² |
| 12 m² | 0.000012 km² |
| 15 m² | 0.000015 km² |
| 20 m² | 0.00002 km² |
| 25 m² | 0.000025 km² |
| 50 m² | 0.00005 km² |
| 100 m² | 0.0001 km² |
| 200 m² | 0.0002 km² |
| 300 m² | 0.0003 km² |
| 500 m² | 0.0005 km² |
| 1000 m² | 0.001 km² |
| 2000 m² | 0.002 km² |
| 5000 m² | 0.01 km² |
| 10000 m² | 0.01 km² |
What is a square meter?
A meter on a side, and about 10.764 square feet.
What is a square kilometre?
A million square metres, or 100 hectares. The unit land area and population density are published in everywhere except the US.
How many square kilometres are in a square meter?
One square meter is 1.0000 × 10^-6 square kilometres. Going the other way, one square kilometre is 1000000 square meters. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every area unit here
The whole group — 10 units with their symbols and the size of each one in square meters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a square meter.
Cite this page
- APA
- Rule Calculator. (2026). Convert Square meters to square kilometres. Rule Calculator. https://rulecalculators.com/convert/square-meter-to-square-kilometer
- MLA
- "Convert Square meters to square kilometres." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/square-meter-to-square-kilometer.
- Chicago
- Rule Calculator. "Convert Square meters to square kilometres." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/square-meter-to-square-kilometer.
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Questions people actually ask
- How many square kilometres are in a square meter?
- 1.0000 × 10^-6. A million square metres, or 100 hectares. The unit land area and population density are published in everywhere except the US.
- How do I convert square kilometres back to square meters?
- Divide by 1.0000 × 10^-6, or multiply by 1000000 — they are the same operation.
Other area conversions
Square kilometres to square meters — the same conversion the other way.