1km = 1000m = 100000cm = 1000000mm, or a million millimetres.
34,000 millimetres
89,300,000 millimetres
25,000,000 millimetres
There are one million millimetres in one kilometre. Therefore, 280 millimetres is equal to 280/1000000 = 0.00028 kilometres.
There are 1000000 millimetres in one kilometre. Therefore, 2500 millimetres is equal to 2500/1000000 = 0.0025 kilometres.
There are 100000 millimetres in one kilometre. Therefore, 1.98 millimetres is equal to 1.98/100000 = 0.0000198 kilometres.
One kilometre is equal to 1000 x 1000 = 1000000 millimetres. Therefore, 100000 millimetres is equal to 100000/1000000 = 0.1 millimetres.
There are 1000000 millimetres in one kilometre. Therefore, 91 kilometres is equal to 91 x 1000000 = 91000000 millimetres.
There are 1000000 millimetres in one kilometre. Therefore, 4 kilometres is equal to 4 x 1000000 = 4000000 millimetres.
There are 1000000 millimetres in one kilometre. Therefore, 0.45 kilometres is equal to 0.45 x 1000000 = 450000 millimetres.
There are 100000 millimetres in one kilometre. Therefore, 6 kilometres is equal to 6 x 100000 = 600000 millimetres.