Formula
km² to m² conversion formula
Use this relationship for a direct conversion:
m² = km² x 1,000,000
Worked example
2 km² = 2,000,000 m².
Values derived from exact metric and international length definitions.
Area conversion
Convert Square kilometer to Square meter
1 square kilometer (km²) equals 1,000,000 square meter (m²). Enter any value below to convert from km² to m².
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1 km² = 1,000,000 m²
All Area units
From 1 km²| Unit | Value |
|---|---|
| Square meter m² | 1,000,000 |
| Square kilometer km² | 1 |
| Square centimeter cm² | 10,000,000,000 |
| Square millimeter mm² | 1e12 |
| Square inch in² | 1,550,003,100.0062000751 |
| Square foot ft² | 10,763,910.4167097211 |
| Square yard yd² | 1,195,990.0463010804 |
| Square mile mi² | 0.3861021585 |
| Acre ac | 247.1053814672 |
| Hectare ha | 100 |
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Quick reference
Square kilometer to Square meter table
| Square kilometer (km²) | Square meter (m²) |
|---|---|
| 0.01 | 10,000 |
| 0.1 | 100,000 |
| 1 | 1,000,000 |
| 2 | 2,000,000 |
| 5 | 5,000,000 |
| 10 | 10,000,000 |
| 25 | 25,000,000 |
| 50 | 50,000,000 |
| 100 | 100,000,000 |
| 1,000 | 1,000,000,000 |
From unit
About the square kilometer
One million square meters.
Symbol: km²
To unit
About the square meter
The area of a square with one-meter sides.
Symbol: m²
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Related conversions
Source
Conversion standard
Definitions are checked against NIST SP 811: Area units. Calculations use full internal precision before display rounding.
View the complete area converterQuestions
km² to m² FAQ
How do you convert square kilometer to square meter?
Use the formula m² = km² x 1,000,000. 1 square kilometer (km²) equals 1,000,000 square meter (m²).
Is the km² to m² conversion exact?
Both unit definitions use exact factors. Only the displayed decimal may be rounded.