About this tool

Foot to Kilometer Converter

Convert feet to kilometers instantly. Free, bidirectional, and fully in-browser.

1 foot equals 0.0003048 kilometers — enter any foot value to convert it to kilometers instantly. This Foot to Kilometer converter is a client-side tool: it applies a single multiplication (km = ft × 0.0003048) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert kilometers back to feet. A reference table lists common foot values already converted, and nothing you enter is sent to a server.

How to use Foot to Kilometer Converter

1. 1

   Open Foot to Kilometer Converter on AltFTool — it loads instantly in your browser.

2. 2

   Type the value you want to convert into the Foot field.

3. 3

   Read the equivalent in kilometers in the result field, and copy it if needed.

4. 4

   Use the decimal-places slider for more or less precision, or press swap to convert kilometers to feet.

Why use Foot to Kilometer Converter

• Instant, both ways

  The result updates as you type, and the swap button flips the conversion to kilometer → foot without reloading.

• Exact Length math

  The conversion uses the precise factor (km = ft × 0.0003048), so the number matches a manual calculation to the decimal places you choose.

• Adjustable precision

  A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.

• Private and free

  Everything runs locally in your browser — no upload, no account, no limit on conversions.

Common use cases

• Converting a foot measurement to kilometers for a spec, listing, or report.
• Checking foot↔kilometer figures while comparing products, datasets, or documentation.
• Learning the foot-to-kilometer relationship from the worked formula and the common-value table.

Frequently asked questions