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1 kilometre is equal to 1000000 millimetres. Therefore, 3 kilometres is equal to 3 x 1000000 = 3000000 millimetres.

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βˆ™ 15y ago
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βˆ™ 13y ago

There are 1000 mm in 1 m.

Therea re 1000 m in 1 km.

So there are 1000,000 mm in 1 km and 3000,000 mm in 3 km

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βˆ™ 13y ago

None.

A millimetre is a measure of distance while a kilogram is a measure of mass. The two measure different things and you cannot convert from one to the other.

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βˆ™ 8y ago

3 kilometers is 3,000,000 millimeters.

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βˆ™ 13y ago

3.400000

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Q: How many millimeters equal to 3 kilometers?
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