Length Converter

Convert between metric and imperial length units

Formula

Convert to meters first, then to target unit. 1 m = 100 cm = 1000 mm = 39.37 in = 3.281 ft = 1.094 yd = 0.000621 mi

All conversions go through meters as the base SI unit. Exact definitions: 1 inch = 2.54 cm, 1 foot = 12 inches, 1 yard = 3 feet, 1 mile = 5280 feet.

How to Calculate Manually

1
Enter the value to convert
2
Select the source unit
3
Select the target unit
4
Calculator converts to meters then to target
5
Shows result with precision

Reference Table

Unit	Meters	Feet	Inches
1 mm	0.001	0.00328	0.03937
1 cm	0.01	0.03281	0.39370
1 m	1	3.28084	39.3701
1 km	1000	3280.84	39370.1
1 in	0.0254	0.08333	1
1 ft	0.3048	1	12
1 yd	0.9144	3	36
1 mi	1609.34	5280	63360

Length Converter: Complete Guide to Distance Conversions

Length conversion is one of the most common calculation needs. Whether you're working on a construction project, planning a trip, or doing science homework, converting between metric and imperial units is essential...

Frequently Asked Questions

What's the exact conversion for feet to meters? 1 foot = 0.3048 meters exactly (defined). 1 inch = 2.54 cm exactly.: 1 foot = 0.3048 meters exactly (defined). 1 inch = 2.54 cm exactly.
How many feet in a mile? 5,280 feet = 1 mile. 1,760 yards = 1 mile.: 5,280 feet = 1 mile. 1,760 yards = 1 mile.
What's a nautical mile? 1 nautical mile = 1,852 meters exactly. Used in aviation and maritime navigation. Based on 1 minute of latitude.: 1 nautical mile = 1,852 meters exactly. Used in aviation and maritime navigation. Based on 1 minute of latitude.

Calculator

Formula

Formula

How to Calculate Manually

Reference Table

Length Converter: Complete Guide to Distance Conversions

Frequently Asked Questions

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