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To convert from Foot (ft) to Kilometer (km), use the following formula:
With is the ratio between the base units Meter (m) and Foot (ft).
Let's convert 5 Foot (ft) to Kilometer (km).
Using the formula:
Therefore, 5 Foot (ft) is equal to Kilometer (km).
Here are some quick reference conversions from Foot (ft) to Kilometer (km):
| Feet | Kilometers |
|---|---|
| 0.000001 ft | km |
| 0.001 ft | km |
| 0.1 ft | km |
| 1 ft | km |
| 2 ft | km |
| 3 ft | km |
| 4 ft | km |
| 5 ft | km |
| 6 ft | km |
| 7 ft | km |
| 8 ft | km |
| 9 ft | km |
| 10 ft | km |
| 20 ft | km |
| 30 ft | km |
| 40 ft | km |
| 50 ft | km |
| 100 ft | km |
| 1000 ft | km |
| 10000 ft | km |
For all Length converters, choose units using the From/To dropdowns above.
The foot (ft) is a standard unit of length in the Imperial and U.S. customary systems of measurement.
The plural form is feet.
There are exactly 12 inches in a foot.
This fundamental conversion is the cornerstone of the Imperial and U.S. customary systems. It's a standard used everywhere, from measuring personal height to completing construction projects.
Additionally, it's helpful to know that 3 feet make one yard.
The origin of the "foot" as a unit of measurement is quite literal—it was historically based on the average length of a human foot.
Ancient civilizations, such as the Greeks, Romans, and Egyptians, often used body parts as a basis for measurement.
Because the actual length of a person's foot could vary, so did the measurement. This led to many inconsistencies until the foot was officially standardized.
Although most of the world uses the metric system, the foot is still an official unit of length in the United States.
It is also commonly used in countries such as the United Kingdom and Canada, particularly for measuring height, altitude, and property dimensions.
To establish a global standard, the international foot was defined in 1959 as being exactly 0.3048 meters.
This precise conversion is crucial for international science, trade, and engineering.
A kilometer (km) is a unit of length in the metric system, equal to 1,000 meters.
The plural form is kilometers.
The term "kilometer" is composed of two parts: the metric unit "meter" and the Greek prefix "kilo," which comes from the word "khilioi," meaning "thousand."
Thus, a kilometer translates to one thousand meters.
This concept is a fundamental aspect of the decimal-based metric system, established in France during the 1790s. The logical, prefix-based nature of the metric system simplifies conversions, which is a key reason for its widespread adoption.
The kilometer is the official unit of measurement for geographical distance in the vast majority of countries worldwide.
Only a few nations still primarily use the mile for road signage and navigation, most notably:
For international travel, science, and sporting events like marathons and the Olympics, the kilometer is the universally accepted standard.
To understand how far a kilometer is, consider these real-world examples:
This consistent unit of measurement makes it easy to compare everything from everyday travel to distances in space.