Conversion formula

The conversion factor from millimeters to meters is 0.001, which means that 1 millimeter is equal to 0.001 meters:

1 mm = 0.001 m

To convert 18 millimeters into meters we have to multiply 18 by the conversion factor in order to get the length amount from millimeters to meters. We can also form a simple proportion to calculate the result:

1 mm → 0.001 m

18 mm → L_(m)

Solve the above proportion to obtain the length L in meters:

L_(m) = 18 mm × 0.001 m

L_(m) = 0.018 m

The final result is:

18 mm → 0.018 m

We conclude that 18 millimeters is equivalent to 0.018 meters:

18 millimeters = 0.018 meters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 meter is equal to 55.555555555556 × 18 millimeters.

Another way is saying that 18 millimeters is equal to 1 ÷ 55.555555555556 meters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighteen millimeters is approximately zero point zero one eight meters:

18 mm ≅ 0.018 m

An alternative is also that one meter is approximately fifty-five point five five six times eighteen millimeters.

Conversion table

millimeters to meters chart

For quick reference purposes, below is the conversion table you can use to convert from millimeters to meters