How many mm are they in 1 km?

Answer 1

There are 1,000,000 (one million) mm in a km.

Well you see, there are 100 metres in a kilometre.

There are 100 centimetres in a metre.

There are 10 millimetres in a centimetre.

So, 100 times 100 times 10 equals how many mm in a km.

That is 1,000,000 mm in a km!

Answer 2

1 km = 1×10^6 mm 1 kilometer = 1,000,000 millimeters

Answer 3

There are 1,000,000 millimeters in 1 kilometer.

Answer 4

1 kilometer is 1 million millimeters.