Length Converter
A length in one unit, read in another.
FREE - NO SIGN-UP - RUNS ON YOUR DEVICE
Your figures stay in this browser tab
- 6categories in one panel
- Liveupdates as you type
- Formulashown with the answer
- 0values uploaded
Length Converter at a glance
- What you enter
- A value and two length units
- What you get
- The value and the formula
- Categories
- Six categories, one panel
- When it updates
- Updates as you type
- Rounding
- Rounded for easy reading
- Price
- Free
- Account required
- No
- Where it runs
- Runs locally in your browser
How to use Length Converter
- 1
Choose length
Set the category to length.
- 2
Enter the value and units
Enter a value and two units.
- 3
Read the answer
Read the value and formula.
Frequently asked questions
Can it convert something other than length?
Yes. The same panel covers weight, temperature, volume, area and speed. Change the category and the unit lists change with it.
Why does my answer differ in the last digits?
Figures are rounded so they read cleanly, and unit definitions can differ between sources. Compare the formula shown before assuming an error.
Is the formula shown as well as the answer?
Yes. The conversion and its formula update together, so the working behind a figure is visible rather than hidden.
Do my figures leave the device?
No. The conversion runs in the current browser tab. Nothing you enter is uploaded, and nothing is stored after you close it.
One panel, six categories
Choose the length category, enter a value, and pick the unit it is in and the unit you want. The converted value and the formula behind it appear as you type.
- Length shares the panel with weight, temperature, volume, area and speed, so a second conversion is a category away.
- The formula is shown with the answer, which makes a converted figure easy to defend in a document.
- Rounding is for reading. Where a figure has to be exact to the last place, work from the formula.
Full specification
| What you enter | The length category, a value, the unit it is in and the unit you want it in. |
|---|---|
| What you get | The converted value, with the formula that produced it. |
| Categories | Length, weight, temperature, volume, area and speed share the panel. |
| When it updates | The output changes whenever a value or a unit changes. |
| Rounding | Figures are rounded for reading, so a check elsewhere can differ in the last places. |
| Price | Free |
| Account required | No |
| Where it runs | All calculations run locally in the current browser tab. |
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