There are 1000 metres in a km and 1000 millimetres in a metre. Therefore, there are 1000000 millimetres in a kilometre. So 20*1000000 is 20,000,000 millimetres.
3 kilometers
There are 1000 millimeters in a meter. There are 1000 meters in a kilometer. Given this information the answer is obvious.
There are 14,000,000 millimeters in 14 kilometers.
250 millimeters=0.00025 kilometers
Converting from millimeters to kilometers, 10,000 millimeters is 0.01 kilometers. Millimeters and kilometers are part of the metric system.
3 kilometers = 3,000,000 millimeters
78,000 millimeters = 0.078 kilometers
318 kilometers = 318,000,000 millimeters
4.5 kilometers is 4,500,000 millimeters.
32 kilometers = 32000000 millimeters
There are 0.000196 kilometers in 19.6 millimeters.
There are 0.003555 kilometers in 3555 millimeters.