Foot to Kilometer Converter (ft to km)
Convert feet to kilometers instantly with a precise online calculator, a clear conversion formula, worked examples, and practical references for international measurement, technical documentation, education, travel, construction, product sizing, and scientific work.
Quick ft to km Converter
Enter a foot value to calculate kilometers automatically.
Result updates automatically.
The formula appears here.
How to Convert feet to kilometers
Use the exact length relationship between feet and kilometers. This converter first normalizes the source value to meters, then converts meters into the target unit, which keeps metric, imperial, microscopic, and astronomical length conversions consistent.
ft to km Formula
The direct conversion factor is based on internationally defined length units.
Common ft to km Examples
Use these examples to check rounding, compare common values, and understand the scale of feet when expressed as kilometers.
| Foot | Kilometer | Calculation | Typical context |
|---|---|---|---|
| 1 ft | 0.0003048 km | kilometer = foot × 0.0003048 | height, construction, aviation, real estate, and US customary measurements |
| 12 ft | 0.0036576 km | kilometer = foot × 0.0003048 | height, construction, aviation, real estate, and US customary measurements |
| 36 ft | 0.0109728 km | kilometer = foot × 0.0003048 | height, construction, aviation, real estate, and US customary measurements |
| 100 ft | 0.03048 km | kilometer = foot × 0.0003048 | height, construction, aviation, real estate, and US customary measurements |
| 5280 ft | 1.609344 km | kilometer = foot × 0.0003048 | height, construction, aviation, real estate, and US customary measurements |
When This Conversion Matters
Foot to Kilometer conversion is useful when measurements need to move between regions, industries, software systems, drawings, classroom materials, product listings, or scientific references.
Professional and technical use
Foot values often appear in height, construction, aviation, real estate, and US customary measurements. Converting them to kilometers helps teams compare specifications, document dimensions, and communicate with audiences that use a different measurement system.
Rounding guidance
Keep more decimal places for engineering, science, or data work. For everyday explanations, round the converted kilometer value to the precision that matches the original measurement.
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Open tool ->Foot to Kilometer FAQ
Common questions about converting feet to kilometers.
What is the formula to convert feet to kilometers?
Multiply feet by 0.0003048 to get kilometers. For example, 1 ft = 0.0003048 km.
How accurate is this ft to km converter?
The calculator uses standard unit definitions and keeps enough precision for most online, educational, and professional reference use.
Should I round the result?
Round only at the final step. Use more decimals for technical work and fewer decimals for everyday communication.
Can I convert back from kilometers to feet?
Yes. Use the swap button in the calculator or multiply kilometers by 3280.839895013123 to get feet.
Feet to Kilometers Converter
What is a Foot (ft)?
A foot is a unit of length commonly used in the United States, Canada, and the United Kingdom. It is defined as:
1 foot = 12 inches = 0.3048 meters
Feet are widely used to measure height, distance, and elevation in everyday life and construction.
What is a Kilometer (km)?
A kilometer is a unit of length in the metric system, equal to 1,000 meters. It is commonly used for measuring longer distances such as:
Road lengths
Geographic distances
Travel ranges
1 kilometer = 1,000 meters = 3,280.84 feet
How to Convert Feet to Kilometers
The Conversion Formula
To convert feet to kilometers, divide the number of feet by 3,280.84:
kilometers = feet ÷ 3,280.84
Or use the simplified formula:
kilometers = feet × 0.0003048
Conversion Examples
Example 1: Convert 1,000 feet to kilometers
kilometers = 1,000 ÷ 3,280.84 ≈ 0.3048 km
Answer: 1,000 feet = 0.3048 kilometers
Example 2: Convert 5,280 feet to kilometers (1 mile)
kilometers = 5,280 ÷ 3,280.84 ≈ 1.60934 km
Answer: 5,280 feet = 1.60934 kilometers
Example 3: Convert 10,000 feet to kilometers
kilometers = 10,000 × 0.0003048 = 3.048 km
Answer: 10,000 feet = 3.048 kilometers
Feet to Kilometers Conversion Chart
| Feet (ft) | Kilometers (km) |
|---|---|
| 100 ft | 0.03048 km |
| 500 ft | 0.1524 km |
| 1,000 ft | 0.3048 km |
| 2,000 ft | 0.6096 km |
| 3,000 ft | 0.9144 km |
| 5,280 ft | 1.60934 km |
| 10,000 ft | 3.048 km |
| 20,000 ft | 6.096 km |
| 50,000 ft | 15.24 km |
| 100,000 ft | 30.48 km |
Frequently Asked Questions
How many feet are in a kilometer?
There are 3,280.84 feet in a kilometer.
How many kilometers are in a foot?
There are 0.0003048 kilometers in a foot.
What is the easiest way to convert feet to kilometers?
Multiply the number of feet by 0.0003048 or divide by 3,280.84.
Where is this conversion useful?
Feet to kilometers conversion is commonly used in:
Aviation (altitude)
Hiking and trail maps
Sports field measurements
International engineering projects
Summary
✅ 1 foot = 0.0003048 kilometers
🔁 Feet to kilometers conversion =
feet × 0.0003048📏 Used in travel, navigation, and construction
📊 Use the chart above for quick conversions