Convert Feet to Kilometers
Convert Feet(ft) to Kilometers(km) or vice versa.
Related "ft" Conversion Units
Convert ft with other distance converter.
What is a Feet to Kilometers Converter?
Feet (ft) and kilometers (km) are both units for measuring distance, but they're used in different systems and for very different scales. Feet are part of the imperial system (common in the US), while kilometers are part of the metric system (used almost everywhere else and in science). Kilometers are used for much larger distances than feet.
This converter helps you change a distance measured in feet into kilometers. This is less common than converting between, say, feet and inches, but it's important in specific situations.
The Conversion: 1 ft ≈ 0.0003048 km
Here's the key relationship:
1 foot ≈ 0.0003048 kilometers
This shows that a foot is a *very* small part of a kilometer. It takes many feet to make up even a small fraction of a kilometer.
Going the other way (which is often more useful):
1 kilometer ≈ 3280.84 feet
Example: Let's say you have a distance of 5,000 feet. To convert to kilometers: 5000 ft * 0.0003048 km/ft = 1.524 km.
Or, use our converter at the top of this page for instant calculations!
When is This Conversion Useful?
While not as common as some other conversions, changing feet to kilometers is important in these areas:
- Aviation and Aerospace
Altitude is sometimes measured in feet, especially in the US. Converting to kilometers can be necessary for international coordination or scientific calculations.
- Mapping and Surveying (Large-Scale)
If you have a very large-scale map or survey data in feet, you might need to convert to kilometers to get a better sense of the overall distances involved.
- International Projects and Data
If you're working with international data or projects that involve distances, you might encounter measurements in both feet and kilometers.
- Converting Historical Data
Older documents or records might use feet for distances that are now more commonly expressed in kilometers.
How to Convert:
Here's how to do the conversion manually:
Feet to Kilometers (ft to km)
Multiply the number of feet by 0.0003048.
Example: A distance of 10,000 feet is 10,000 ft * 0.0003048 km/ft = 3.048 km.
Kilometers to Feet (km to ft)
Divide the number of kilometers by 0.0003048 (or, multiply by 3280.84).
Example: A distance of 2 kilometers is 2 km / 0.0003048 km/ft ≈ 6561.68 feet.
But the easiest way is to use our converter above!
Key Reminders
0. 0003048 is the key number to convert feet to kilometers. It represents the tiny fraction of a kilometer that one foot makes up.
Think Big vs. Small: Remember that you're converting between a very small unit (feet) and a much larger unit (kilometers).
| Foot | Kilometer |
|---|---|
| 0.01 Foot | 0.00 Kilometer |
| 0.1 Foot | 0.00 Kilometer |
| 1 Foot | 0.00 Kilometer |
| 2 Foot | 0.00 Kilometer |
| 3 Foot | 0.00 Kilometer |
| 5 Foot | 0.00 Kilometer |
| 10 Foot | 0.00 Kilometer |
| 20 Foot | 0.01 Kilometer |
| 50 Foot | 0.02 Kilometer |
| 100 Foot | 0.03 Kilometer |
| 1000 Foot | 0.30 Kilometer |
| 10000 Foot | 3.05 Kilometer |
| 100000 Foot | 30.48 Kilometer |