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Area
Square kilometers to Square meters
Convert square kilometers (km²) to square meters (m²). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 km² = 1.0000e+6 m²
Square kilometers to Square meters Conversion Table
Common values, ready to copy:
| square kilometers | square meters |
|---|---|
| 1 km² | 1.0000e+6 m² |
| 2 km² | 2.0000e+6 m² |
| 5 km² | 5.0000e+6 m² |
| 10 km² | 1.0000e+7 m² |
| 25 km² | 2.5000e+7 m² |
| 50 km² | 5.0000e+7 m² |
| 100 km² | 1.0000e+8 m² |
| 1,000 km² | 1.0000e+9 m² |
Formula
square meters = square kilometers × 1000000
Area conversions are derived from length: 1 ft² = (0.3048 m)² = 0.092903 m². 1 acre = 4,046.86 m². 1 hectare = 10,000 m² exactly.
About Square kilometers and Square meters
Square kilometers (km²): One kilometer squared, or one million square meters. Common uses: City area, national park sizes, agricultural land, and geographic features at the regional scale.
Square meters (m²): One meter squared, the SI derived unit for area. Common uses: Real estate (apartment floor areas), gardening (planted area), solar panel coverage, room dimensions, and almost every non-US construction context.
How the conversion works
Area conversions are derived from length: 1 ft² = (0.3048 m)² = 0.092903 m². 1 acre = 4,046.86 m². 1 hectare = 10,000 m² exactly.
The exact relationship is square meters = square kilometers × 1000000, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between square kilometers and square meters comes up wherever area measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.