Foot to Kilometer Converter
Convert feet to kilometers (ft to km) instantly with this free online length converter. Enter any value in the Foot field and get the equivalent in Kilometer immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.
The conversion factor is exact: 1 ft = 0.0003048 km. To convert feet to kilometers, multiply your Foot value by 0.0003048. For example, 10 ft = 0.003048 km. You can also reverse the calculation: 1 km = 3280.839895 ft.
Quick conversion table
| Foot (ft) | Kilometer (km) |
|---|---|
| 1 ft | 0.0003048 km |
| 5 ft | 0.001524 km |
| 10 ft | 0.003048 km |
| 25 ft | 0.00762 km |
| 50 ft | 0.01524 km |
| 100 ft | 0.03048 km |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the length category.
Formula
Foot to Kilometer conversion: 1 ft = 0.0003048 km kilometers = feet × 0.0003048 1 km = 3280.839895 ft feet = kilometers × 3280.839895
Example
Example: Convert 10 ft to km: 10 ft × 0.0003048 = 0.003048 km So, 10 ft is about 0.003048 km. To convert back, multiply by 3280.839895: 0.003048 km × 3280.839895 = 10 ft.
How to Use
- Enter the value you want to convert in the Foot field
- The result in Kilometer appears instantly below
- Use the dropdown menus to change units if needed
- Click 'Swap Units' to reverse the conversion direction
- Copy the result or adjust the input for a new conversion
Frequently Asked Questions
How do I convert feet to kilometers?
Enter the value in Foot (ft) in the 'From' field. The equivalent in Kilometer (km) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.
What is the formula to convert ft to km?
1 ft = 0.0003048 km, so kilometers = feet × 0.0003048. To convert back, 1 km = 3280.839895 ft. The full formula and a worked example are shown on this page.
How many kilometers are in one Foot?
1 ft = 0.0003048 km.
Is this Foot to Kilometer converter free?
Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.
Can I convert kilometers back to feet?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other length unit for either field.
How accurate is the ft to km conversion?
The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.