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Length Converter

Enter one length and instantly convert it to metres, inches, feet, miles, nautical miles, and astronomical units.

Use a comma or period as the decimal separator; do not use thousands separators.

All units

Metric & scientific

Use as target unit: Picometre
Picometre (pm)
1e12
Use as target unit: Ångström
Ångström (Å)
10,000,000,000
Use as target unit: Nanometre
Nanometre (nm)
1,000,000,000
Use as target unit: Micrometre
Micrometre (µm)
1,000,000
Use as target unit: Millimetre
Millimetre (mm)
1,000
Use as target unit: Centimetre
Centimetre (cm)
100
Use as target unit: Decimetre
Decimetre (dm)
10
Use as target unit: Metre
Metre (m)
From
1
Use as target unit: Kilometre
Kilometre (km)
0.001

Imperial & navigation

Use as target unit: Mil / Thou
Mil / Thou (mil)
39,370.0787402
Use as target unit: Inch
Inch (in)
39.3700787402
Use as target unit: Foot (international)
Foot (international) (ft)
To
3.28083989501
Use as target unit: Yard (international)
Yard (international) (yd)
1.09361329834
Use as target unit: Mile (international)
Mile (international) (mi)
0.000621371192237
Use as target unit: Nautical mile (international)
Nautical mile (international) (nmi)
0.000539956803456

Astronomy

Use as target unit: Astronomical unit
Astronomical unit (au)
6.68458712227e-12
Use as target unit: Light-year
Light-year (ly)
1.05700083402e-16
Use as target unit: Parsec
Parsec (pc)
3.24077928944e-17

Good to know

The Length Converter converts lengths and distances directly in your browser. It supports common units such as meters, kilometers, miles, inches, feet, yards, and astronomical units and is useful for everyday tasks, school, studies, engineering, travel, shopping, planning, and quick plausibility checks.

Typical searches for this page include meters to feet, kilometers to miles, inches to centimeters, convert length. Calculation runs locally in the browser, without upload or server processing. For construction and manufacturing dimensions, check the required tolerance separately.

Typical use cases

Quick everyday conversion

Convert values for recipes, measurements, travel, online shopping, DIY work, or product specifications without opening a spreadsheet.

Compare technical values

Use the converter for technical documentation, data sheets, lab values, device settings, or international specifications.

Local calculation without tracking

Entered values stay in the browser. This is useful for drafts, internal calculations, and quick checks where no external service is needed.

Tips for better results

Check unit and rounding

Check the source unit and decide whether the rounded display is sufficient or whether more decimal places are useful.

Cross-check critical values

For legal, medical, safety-critical, or regulated measurement use, compare results with the applicable standard or measurement source.

How it works

Step by step

  1. 1

    Enter a value

    Enter the source value and choose the matching starting unit.

  2. 2

    Compare results

    Target values are calculated automatically and shown in the most important units.

  3. 3

    Use the value

    Copy the matching result into documentation, planning, orders, code, spreadsheets, or notes.

Features

Browser-based conversion

Calculation runs locally. Values are not sent to a server for conversion.

Multiple units at a glance

After input, matching target values are shown immediately in multiple units.

Flexible display

Options such as grouping, decimal places, or source unit help make results easy to review.

Frequently asked questions

Are inputs uploaded when using Length Converter?

No. Conversion runs locally in the browser. Entered values are not transferred to Xoricon or another server.

How accurate is the conversion?

The converter uses standardized factors and JavaScript floating-point numbers. Displayed results are rounded and are not intended for regulated metrology or uncertainty calculations.

Can I see multiple units at once?

Yes. Many converters show several matching target values after one input, so you can quickly find the relevant unit.

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