Length Converter
Convert a length with SI factors. One inch is 0.0254 meters exactly. For height in feet and inches, use the height page.
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How to convert length
- Enter a value.
- Pick the unit you have and the unit you want.
- Read the converted length.
- Open inches to cm or height when that is the whole job.
Length
SI length with imperial factors
| Inch | 0.0254 m exactly |
|---|---|
| Foot | 0.3048 m exactly |
| Yard | 0.9144 m exactly |
| Mile | 1609.344 m exactly |
| Nautical mile | 1852 m exactly |
Length units
This category page converts metric and US customary length, plus the international nautical mile (exact 1852 m) and the mil (0.001 in). The inch is exact 0.0254 m, so 1 in = 2.54 cm with no rounding in the factor.
Common pairs
For a single job, inches to cm and the height converter are shorter. All of them share the same factors as the unit converter.
Survey feet and nautical miles
This page uses the international foot (exact 0.3048 m), not the US survey foot. Nautical miles are 1852 m, not a rounded 6080 ft product.
Length converter questions
Does this page upload what I type?
No. The work runs in the page you opened. CZNull does not receive the input.
Is 1 inch exactly 2.54 cm?
Yes. The inch is defined as 0.0254 m.
Height in feet and inches?
Use the height converter on this category.
Survey foot?
Not used here. GIS work that still needs the survey foot should not use this page.
Light-years?
Not on this page.