Convert Earth Radius to Feet (R⊕ to Feet)

Earth Radius (R⊕) and Feet (Feet) are both units of length. With the conversion form below, you can effortlessly and accurately convert earth radius to feet. This free online calculator tool makes it simple and easy to perform the conversion from R⊕ unit to the Feet unit.

Length is the measure of distance in one dimension—the extent of an object from one end to the other, or the distance between two points. The SI base unit is themeter (m), defined since 1983 as the distance light travels in a vacuum in 1/299,792,458 of a second. Common derived units include the kilometer (1 km = 1,000 m) for distances and the centimeter (cm) and millimeter (mm) for everyday measurements. US customary length units include the inch (in), foot (ft), yard (yd), and mile (mi). The nautical mile (1,852 m) is used in aviation and maritime navigation.

An Earth radius (R⊕) is an astronomical unit of length equal to the average distance from Earth's center to its surface, approximately 6,371 kilometers. Astronomers and planetary scientists use Earth radii to describe the sizes of other planets, moons, and celestial bodies relative to Earth, providing intuitive scale comparisons. The unit also appears in magnetospheric physics for describing satellite orbital distances and the boundaries of Earth's radiation belts. Because Earth's shape is not a perfect sphere, slightly different values exist for equatorial radius (6,378.137 km) versus polar radius (6,356.752 km), with the mean radius (6,371 km) commonly used for general astronomical comparisons. The unit provides a natural, relatable reference point when discussing planetary science and space exploration topics with both technical and general audiences. Learn more about Earth radius.

A foot (symbol: ft), plural feet, is a unit of length in the Imperial System and United States customary system. One foot is defined as exactly 12 inches or 0.3048 meters. It is commonly used for measuring height, room dimensions, buildings, land, and construction materials.

The foot remains one of the most widely used non-metric units, especially in the United States and many engineering and construction applications worldwide.

Quick Foot Conversions

• 1 foot = 12 inches
• 1 foot = 0.3048 meters
• 1 foot = 30.48 centimeters
• 1 foot = 304.8 millimeters
• 1 foot = 0.333333 yard
• 1 foot = 0.000189394 mile