![]() History/origin: Prior to standardization of units of measurement, and the definition of the foot currently in use, the measurement of the foot was used in many different systems including the Greek, Roman, English, Chinese, and French systems, varying in length between each. One foot contains 12 inches, and one yard is comprised of three feet. A foot was defined as exactly 0.3048 meters in 1959. Footĭefinition: A foot (symbol: ft) is a unit of length in the imperial and US customary systems of measurement. The United States is one notable exception in that it largely uses US customary units such as yards, inches, feet, and miles instead of meters in everyday use. The current definition of the meter is effectively the same as the definition that was adopted in 1983, with slight modifications due to the change in definition of the second.Ĭurrent use: Being the SI unit of length, the meter is used worldwide in many applications such as measuring distance, height, length, width, etc. ![]() In 1960, the meter was again redefined, this time in terms of a certain number of wavelengths of a certain emission line of krypton-86. This changed in 1889, when the International prototype metre was established as the length of a prototype meter bar (made of an alloy of 90% platinum and 10% iridium) measured at the melting point of ice. History/origin: Originally, in 1793, the meter was defined as one ten-millionth of the distance from the equator to the North Pole. This definition was slightly modified in 2019 to reflect changes in the definition of the second. The meter is defined as the distance traveled by light in 1/299 792 458 of a second. (5 + 0.70833333) x 0.3048 = Number of metersĥ.70833333 x 0.3048 = 1.7399 meters or 1.74 meters.Definition: A meter, or metre (symbol: m), is the base unit of length and distance in the International System of Units (SI). John his 5 feet, 8 inches and 1/2 tall and need to get his height in meters. (Number of feet + ((number of inches + number of fraction of inches)/12)) x 0.3048 = Number of meters Exemple The final result would be 1224 feet, 6 inches and 7/8 (simplified) Convert feet to meters Round down the 1224.573491 = 1224 feet Get the result of inches James climb a mountain that his 373.25 meters and would like to know the number of feet of elevation. Inch decimal x 32 = Result of fraction based on 32Īfter, you are free to decide if you want to simplify the fraction or not. Number of inches - Result in inches = Inch decimal Round down the Number of inches = Result in inches Get the result of fractions of an inch Number of feet - Result in feet = Feet decimal Round down the Number of feet = Result in feet Get the result of inches Number of meters / 0.3048 = Number of feet Convert meters to feet Get the result of feet Has the foot represent 1/3 of a yard, the calculation of 0.9144/3 = 0.3048 meter. ![]() The formulas are based on the fact that, from 1959 the Commonwealth of Nations aggreed that the lenght of the internaional yard was exactly 0.9144 meters. Feet Inches Fraction of inches Formula for converting feet and meters
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