Length Converter
Convert between units of length. Processing for supported tools happens locally in your browser.
About Length Converter
Use this browser-based utility for everyday tasks. Review output before relying on it and retain a copy of important originals.
Read the Length Converter guide →About Length Converter
A length converter helps translate measurements used in travel, construction plans, schoolwork and product specifications. Select the source and target units and check the displayed precision.
How to use Length Converter
- Enter the numeric measurement.
- Select the starting unit, such as feet or meters.
- Select the unit you need, such as inches or kilometers.
- Choose Convert and review the result.
- Use Swap units to reverse the conversion direction.
Precision and mistakes
A conversion cannot make a rough measurement more exact, so measure carefully before you convert. Do not confuse millimetres with centimetres, which differ by a factor of 10, or a metre with a yard. Write the unit next to every number, and for construction, shipping or any regulated work use the precision that the specification asks for.
Frequently asked questions
How many kilometres are in a mile?
One mile is exactly 1.609344 kilometres, and one kilometre is about 0.6214 miles.
How do I convert feet to meters?
Choose feet as the From unit and meters as the To unit, enter the measurement and convert.
Can I use the result for a survey?
Use verified measurements and the precision required by the relevant surveying or engineering standard.
How many centimetres are in an inch?
Exactly 2.54 centimetres.
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Want more detail, examples and answers to common questions? Read the Length Converter guide.