How many mm in 1 ridge?
The answer is 6172.2.
We assume you are converting between millimetre and ridge.
You can view more details on each measurement unit: mm or
ridge
The SI base unit for length is the metre.
1 metre is equal to 1000 mm, or 0.16201678493892 ridge.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between millimetres and ridges.
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ridge to mm, or enter any two units below:

A millimetre (American spelling: millimeter, symbol mm) is one thousandth of a metre, which is the International System of Units (SI) base unit of length. The millimetre is part of a metric system. A corresponding unit of area is the square millimetre and a corresponding unit of volume is the cubic millimetre.

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