Conversions Conversion Chart

Length Conversion Reference

A quick conversion chart for millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles.

Brekzy Team Published September 5, 2026

On this page
  1. Metric Length Units
  2. Imperial Length Units
  3. Metric ↔ Imperial Conversion Chart
  4. Common Reference Points

A quick-reference chart for the length and distance units people convert most often. For the reasoning and worked examples behind these numbers, see the length conversion guide.

Metric Length Units

Unit Symbol Equivalent
Millimeter mm 0.001 m
Centimeter cm 0.01 m
Meter m 1 m (base unit)
Kilometer km 1,000 m

Imperial Length Units

Unit Symbol Equivalent
Inch in 1/12 ft
Foot ft 12 in
Yard yd 3 ft
Mile mi 1,760 yd

Metric ↔ Imperial Conversion Chart

From To Multiply By
Inches Centimeters 2.54
Centimeters Inches 0.3937
Feet Meters 0.3048
Meters Feet 3.28084
Yards Meters 0.9144
Meters Yards 1.09361
Miles Kilometers 1.60934
Kilometers Miles 0.62137

Common Reference Points

Measurement Approximate Equivalent
1 inch 2.54 cm
1 foot 30.48 cm
1 meter 3 ft 3.4 in
1 mile 1.61 km
5K run (5 km) 3.11 miles
Marathon (26.2 mi) 42.2 km
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