Length Converter Units
Convert between meters, feet, inches, miles, kilometers and more.
Length Converter is a free online tool that convert between meters, feet, inches, miles, kilometers and more. It runs entirely in your web browser using plain JavaScript, so files are processed on your own device and never uploaded to a server. There is no sign-up, no file size limit imposed by the site, no watermark and no paid tier.
- Price
- Free — no account, no quota, no watermark
- Category
- Units
- Where it runs
- In your browser, on your device
- Files uploaded
- None
- Technology
- plain JavaScript
- Settings
- 3
- Works offline
- Yes, after the first visit
About Length Converter
Length Converter is one of 19 units tools on DuckyTools, and like all of them it runs entirely inside this page. Convert between meters, feet, inches, miles, kilometers and more.
How to use it
- Enter value, from and to.
- Results update the moment anything changes.
The 3 settings
| Setting | What it does | Default |
|---|---|---|
| Value | A numeric value. | 1 |
| From | Choose from 12: Nanometers, Micrometers, Millimeters, Centimeters, Meters, Kilometers…. | Meters |
| To | Choose from 12: Nanometers, Micrometers, Millimeters, Centimeters, Meters, Kilometers…. | Feet |
Conversion reference
Exact factors used by this converter, expressed against nanometers (nm). These are the defined values, not rounded approximations.
| Unit | Symbol | In nm |
|---|---|---|
| Nanometers | nm | 1.000000 × 10^-9 |
| Micrometers | µm | 1.000000 × 10^-6 |
| Millimeters | mm | 0.001 |
| Centimeters | cm | 0.01 |
| Meters | m | 1 |
| Kilometers | km | 1,000 |
| Inches | in | 0.0254 |
| Feet | ft | 0.3048 |
| Yards | yd | 0.9144 |
| Miles | mi | 1,609.344 |
| Nautical miles | nmi | 1,852 |
| Light years | ly | 9.460700 × 10^15 |
Under the hood
| Runs on | plain JavaScript — runs the whole thing |
| Controls | Value, From, To |
Questions
What does the from option change?
It offers 12 choices — Nanometers, Micrometers, Millimeters and Centimeters and more. The default is Meters, which suits most cases; change it when your input or your destination calls for something specific.