How do I convert Meter (m) to Inch (in)?

1 m equals 39.370079 in using SI-based conversion and precise factors.

What is the formula to convert Meter (m) to Inch (in)?

This is a linear unit conversion using a constant factor between units.

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

Use the shareable URL pattern: /convert/m-to-in/1

Category: Length

Value From To Precision

39.370079 in

1 m = 39.370079 in

High-precision rounding: 6 decimals

We convert by pivoting through the SI base unit for Length and applying exact factors where applicable.

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Length measures distance. SI base is the meter; many legacy units survive in trade and navigation.

Meter (m)

Base unit of length in the SI. Defined via the speed of light in vacuum.

History: Historically tied to Earth's meridian (18th c.); redefined in 1983 using c = 299,792,458 m/s.

Inch (in)

Imperial/US customary unit of length; exactly 25.4 mm.

History: Fixed at exactly 25.4 mm by international agreement in 1959.