Square meters to Square kilometers

Convert square meters (m²) to square kilometers (km²). Type a value below to see the result update instantly. Reference table and formula included.

Calculator

Square meters

m²

⇌

Square kilometers

km²

1 m² = 1.0000e-6 km²

Common values, ready to copy:

square kilometers = square meters × 0.000001

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.