millimetre to inch Converter

What is a millimetre?

A millimetre is a small metric unit of length, equal to one thousandth of a metre.

What is a inch?

An inch is a unit of length in the imperial and US customary systems of measurement, equal to 1/12 of a foot.

Conversion Formula

To convert from millimetre to inch, use the formula:

    inch = millimetre × (0.001 / 0.0254)

Which simplifies to:

    1 millimetre = 3.937008e-2 inch

To convert from inch to millimetre, use:

    millimetre = inch × (0.0254 / 0.001)

Which simplifies to:

    1 inch = 2.540000e+1 millimetre

This formula works by converting millimetre into meters as the base unit, then converting that result into inch. It's a two-step, accurate method based on SI units.

\ Example: Convert 10 millimetre to inch:
10 × (0.001 ÷ 0.0254) = 3.937008e-1 inch

Common millimetre to inch Conversions