How do I convert Meter (m) to Kilometer (km)?

1 m equals 0.001 km using SI-based conversion and precise factors.

What is the formula to convert Meter (m) to Kilometer (km)?

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-km/1

Category: Length

Value From To Precision

0.001 km

1 m = 0.001 km

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.

Kilometer (km)

1,000 meters. Common for road and geographic distances.

History: Adopted with the metric system during the 19th century.