square kilometre km²
100 hectares or 1,000,000 m². Country/city size.
Quick convert — square kilometre to popular units
Live converter, three directions. Type any value to update all three.
square kilometre
square metre
1 km² = 1,000,000m²
square kilometre
square centimetre
1 km² = 10,000,000,000cm²
square kilometre
hectare
1 km² = 100ha
Conversion table — square kilometre to every Area unit
All values for 1 km² (forward) and 1 reverse unit → {symbol}.
| To / From | 1 km² = | 1 to-unit = |
|---|---|---|
| square metre (m²) | 1,000,000 m² | 1.000000e-6 km² |
| square centimetre (cm²) | 10,000,000,000 cm² | 1.000000e-10 km² |
| hectare (ha) | 100 ha | 0.01 km² |
| square foot (ft²) | 10,763,910.41670972 ft² | 9.290304e-8 km² |
| square inch (in²) | 1,550,003,100.0062 in² | 6.451600e-10 km² |
| square mile (mi²) | 0.38610216 mi² | 2.58998811 km² |
| acre (ac) | 247.10538147 ac | 0.00404686 km² |
| square yard (yd²) | 1,195,990.04630108 yd² | 8.361274e-7 km² |
Frequently Asked Questions
What does km² stand for?
square kilometre (km²) is a unit of Area.
How many km² are in 1 m²?
1 m² = 1,000,000 km², so 1 km² = 1.0000e-6 m².
Is this the SI base unit?
No. square kilometre is one of several units in the Area category. The SI base is m².
Common conversions from square kilometre
#1
square kilometre (km²) → square meter (m²)
Convert square kilometre (km²) to square meter.
#2square kilometre (km²) → square centimeter (cm²)
Convert square kilometre (km²) to square centimeter.
#3square kilometre (km²) → hectare (ha)
Convert square kilometre (km²) to hectare.
#4square kilometre (km²) → square foot (ft²)
Convert square kilometre (km²) to square foot.
#5square kilometre (km²) → square inch (in²)
Convert square kilometre (km²) to square inch.
#6square kilometre (km²) → square mile (mi²)
Convert square kilometre (km²) to square mile.
#7square kilometre (km²) → acre (ac)
Convert square kilometre (km²) to acre.
#8square kilometre (km²) → square yard (yd²)
Convert square kilometre (km²) to square yard.