How this tool works
Every value is converted through metres, using internationally defined relationships. For example, one inch is exactly 25.4 millimetres and one yard is exactly 0.9144 metres.
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Length Converter
Convert metric and imperial lengths in either direction. The result updates immediately and preserves sensible precision for very small and very large measurements.
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When it is useful
Use it for product dimensions, construction plans, travel distances, sport measurements and specifications that mix metric and imperial units.
Accuracy and unit standards
The international inch, foot and yard definitions are exact. Displayed answers are rounded only for readability; calculations use the full factors shown in the tool.