Kilometre is metric length unit, symbol: [km]. Definition of 1 kilometre =1000 m. . Compared to metre, kilometre is bigger unit.
• 1 [km] = (exactly) `1000` [m]
• 1 [m] = (exactly) `1/(1000)` [km] = 0.001 [km]
Multiply convert of kilometre to common length units:[km]
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