# Convert feet to kilometers

Enter the number of feet you want to convert to kilometers in the text box below. The conversion to length in kilometers will update as you type.

feet (ft)
1 feet = 3.048×10-4 kilometers

## Precise decimal and fraction answers

The conversion in kilometers rounded to six significant decimal places is 1 ft = 0.000304800 km. The precise fraction answer is 25/82021 km.

### Decimal Precision

Conversion from one to ten decimal places

• 1 ft = 0.0003 km
• 1 ft = 0.00030 km
• 1 ft = 0.000305 km
• 1 ft = 0.0003048 km
• 1 ft = 0.00030480 km
• 1 ft = 0.000304800 km
• 1 ft = 0.0003048000 km
• 1 ft = 0.00030480000 km
• 1 ft = 0.000304800000 km
• 1 ft = 0.0003048000000 km

## How many kilometers are in a foot?

There are 3.048×10-4 kilometers in one foot. A foot is 0.030% of a kilometer. A kilometer is 327,983.99% longer than one foot.

## Feet to kilometers conversion factor and formulas

Formula

The conversion factor between feet and kilometers is 3,280.84. This represents the ratio of feet per one kilometer. To calculate the value in kilometers, we can either divide by the conversion factor or multiply by its inverse.

### Division

To convert from feet to kilometers, divide feet by 3,280.84.
The formula is expressed as:
ft ÷ 3,280.84 = km

### Multiplication

Alternatively we can multiply by the inverse conversion factor to get the same result.
The inverse of 3,280.84 is 1/3,280.84 or 0. To convert from feet to kilometers, multiply feet by 0.
The formula is expressed as:
ft × 0 = km

Converting feet to kilometers is a conversion between units from separate unit systems - feet are US Customary / UK Imperial defined units while kilometers are metric (SI) .

Customary/Imperial Unit

The foot is a length unit of measure within the US Customary and UK Imperial systems. It is commonly abbreviated as ft or using the ' symbol. The official definition of the foot is 0.3048 meters. Within the Imperial system, the foot is equal to 12 inches or 1/3 of a yard. The foot is very widely used within the United States in situations where nearly the rest of the world would measure in meters. Globally, the foot is used by the aviation community as the standard measurement of flight altitude eg. 35,000 feet.

SI Unit

Within the SI (metric) system of measurement, the kilometer is officially defined as being equal to 1,000 meters. It is commonly used as measurement for geographic distances in similar circumstances where a mile would be used in the U.S. Internationally it is spelled 'kilometre' whereas the U.S. spells it 'kilometer'. The symbol for a kilometer is km however k is sometimes used.

## Reverse this conversion

Convert from kilometers to feet instead.

## 1 feet to other length units

### Metric

• 1 ft = 3.048×10-4 km
• 1 ft = 0.305 m
• 1 ft = 3.048 dm
• 1 ft = 30.48 cm
• 1 ft = 304.8 mm
• 1 ft = 304,800 µ
• 1 ft = 3.048×108 nm

### Imperial/U.S.

• 1 ft = 1.894×10-4 mi
• 1 ft = 0.333 yd
• 1 ft = 1 ft
• 1 ft = 12 in

## References and Citations

1. National Institute of Standards and Technology (NIST) General Tables of Units of Measurement
2. International Bureau of Weights and Measures (BIPM) The International System of Units (SI)

## Feet to kilometers conversion table

ft km
1 ft 3.048×10-4 km
2 ft 6.096×10-4 km
3 ft 9.144×10-4 km
4 ft 0.001 km
5 ft 0.002 km
6 ft 0.002 km
7 ft 0.002 km
8 ft 0.002 km
9 ft 0.003 km
10 ft 0.003 km
ft km
20 ft 0.006 km
30 ft 0.009 km
40 ft 0.012 km
50 ft 0.015 km
60 ft 0.018 km
70 ft 0.021 km
80 ft 0.024 km
90 ft 0.027 km
100 ft 0.03 km
1,000 ft 0.305 km