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The kilometer (SI symbol: km) or kilometre (British spelling) is a unit of length in the metric system, equal to 1000 meters (kilo- being the SI prefix for 1000). It is ..more definition+
The millimeter (symbol = mm), or millimetre (British spelling) is a unit of length in the metric system, equal to one thousandth of a meter, which is the SI base unit ..more definition+
In relation to the base unit of [length] => (meters), 1 Kilometers (km) is equal to 1000 meters, while 1 Millimeters (mm) = 0.001 meters.| 1 Kilometers | to common length units |
|---|---|
| 1 km | = 1000 meters (m) |
| 1 km | = 1 kilometers (km) |
| 1 km | = 100000 centimeters (cm) |
| 1 km | = 3280.8398950131 feet (ft) |
| 1 km | = 39370.078740157 inches (in) |
| 1 km | = 1093.6132983377 yards (yd) |
| 1 km | = 0.62137119223733 miles (mi) |
| 1 km | = 1.056970721911E-13 light years (ly) |
| 1 km | = 3779528.0352161 pixels (PX) |
| 1 km | = 6.25E+37 planck length (pl) |
| Kilometers | to Millimeters (table conversion) |
|---|---|
| 1 km | = 1000000 mm |
| 2 km | = 2000000 mm |
| 3 km | = 3000000 mm |
| 4 km | = 4000000 mm |
| 5 km | = 5000000 mm |
| 6 km | = 6000000 mm |
| 7 km | = 7000000 mm |
| 8 km | = 8000000 mm |
| 9 km | = 9000000 mm |
| 10 km | = 10000000 mm |
| 20 km | = 20000000 mm |
| 30 km | = 30000000 mm |
| 40 km | = 40000000 mm |
| 50 km | = 50000000 mm |
| 60 km | = 60000000 mm |
| 70 km | = 70000000 mm |
| 80 km | = 80000000 mm |
| 90 km | = 90000000 mm |
| 100 km | = 100000000 mm |
| 200 km | = 200000000 mm |
| 300 km | = 300000000 mm |
| 400 km | = 400000000 mm |
| 500 km | = 500000000 mm |
| 600 km | = 600000000 mm |
| 700 km | = 700000000 mm |
| 800 km | = 800000000 mm |
| 900 km | = 900000000 mm |
| 1000 km | = 1000000000 mm |
| 2000 km | = 2000000000 mm |
| 4000 km | = 4000000000 mm |
| 5000 km | = 5000000000 mm |
| 7500 km | = 7500000000 mm |
| 10000 km | = 10000000000 mm |
| 25000 km | = 25000000000 mm |
| 50000 km | = 50000000000 mm |
| 100000 km | = 100000000000 mm |
| 1000000 km | = 1000000000000 mm |
| 1000000000 km | = 1.0E+15 mm |