Length and Area
fttokm
Convert feet (ft) to kilometres (km).
Factor1 ft = 0.0003048 km
Converter
ft
Accepts numbers or expressions, e.g. 150 + 14.7
Result
km
Rendered to 6 significant figures.
Formula
Formula
km = ft × 0.0003048
Multiply any value in feet by 0.0003048 to obtain the value in kilometres.
Worked example
Convert 5280 ft to km.
- 01Start with 5280 ft.
- 02Multiply by the conversion factor: 5280 × 0.0003048 = 1.60934 km.
Result5280 ft = 1.60934 km
Conversion table
| ft | km |
|---|---|
| 1 | 0.0003048 |
| 2 | 0.0006096 |
| 5 | 0.001524 |
| 10 | 0.003048 |
| 20 | 0.006096 |
| 50 | 0.01524 |
| 100 | 0.03048 |
| 200 | 0.06096 |
| 500 | 0.1524 |
| 1000 | 0.3048 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft to km?
1 ft equals 0.0003048 km. To convert, multiply the value in feet by 0.0003048.
How do I convert 1 ft to km?
1 ft = 0.0003048 km. For any value, multiply by 0.0003048.
How do I convert km back to ft?
Divide by the same factor — or equivalently, multiply by 3280.84. So 1 km = 3280.84 ft.
When would I need to convert foot to kilometre?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
Yes. Both ft and km are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).