231.5 km to feet

231.5 km equals 759514.4357 feet. To convert km to feet, multiply the number of km by 3280.839895.

How to convert 231.5 km to feet?

Kilometer

Inch is often used to measure the height of a person. Apart from height measurement, the inch also has other common uses such as measuring electronic components, furniture dimensions, shoe sizes, packaging boxes, etc.

The metric system was implemented in France in 1799, and the meter was made the base unit of length. However, meter was not suitable for all purposes of length measurement, for example, to measure long distances. A unit called the myriameter was popular to represent 10000 meters until 1867. The Netherlands made the term kilometer official to represent 1000 meters in 1867. In 1935, the CIPM (International Committee for Weights and Measures) abolished the prefix “myria”, which gave broader recognition to the kilometer as the unit of length for measurements of similar extent as myriameter.

The most common use of the kilometer is to measure distances between geographical places, lengths of the racing tracks, etc. It is used in combination with other units to calculate the fuel efficiency (kilometers per liter), speed (kilometers per hour), etc.

Foot

Foot is a unit of length in the British Imperial System and the United States Customary Unit System. The standard symbol of the foot is ft. It is also denoted by a prime symbol (′).

The unit's name indicates and is believed to be based on the human foot. Since ancient times, the foot has been widely used in European countries and the United States. The length of the foot was different from country to country. Different rulers defined their feet, making the previous one obsolete. This created great confusion for international and intercontinental trade. To overcome this confusion of variation in the unit values, seven countries, including the United States, Canada, New Zealand, South Africa, Australia, and the United Kingdom, signed the International Yard and Pound Agreement in 1959 that defined the yard value as exactly 0.9144 meters. This consequently made the value of the international foot exactly 0.3048 meters.

The foot is used to measure the lengths of objects and small distances. The square foot, the unit derived from the foot, is used to measure the area of a two-dimensional space. To distinguish area and length measurements, the term linear foot is used to indicate the length of the material in feet instead of the area. In aviation, the altitude of flight levels is commonly used in hundred-foot increments. For example, a flight level 320 indicates an altitude of 32000 feet. The dimensions of shipping containers are measured in feet.