## What is the radius and diameter of Earth?

The diameter of a circle is twice the radius, giving us a diameter for Earth of 12,756 km. Note: The Earth is almost, but not quite, a perfect sphere. Its equatorial radius is 6378 km, but its polar radius is 6357 km – in other words, the Earth is slightly flattened.

**What is the exact radius of the Earth?**

The value, symbolized rearth, is equal to approximately 6,371,000 meters (6.371 x 106 m). This is roughly 6,371 kilometers (km) or 3,960 statute miles. The Earth is slightly oblate, so its radius in the plane of the equator is a little larger than its radius along the rotational axis.

### What is Earth’s radius in KG?

Mass (10 24 kg) 5.9724 Volume (10 10 km 3) 108.321 Equatorial radius (km) 6378.137 Polar radius (km) 6356.752 Volumetric mean radius (km) 6371.000 Core radius (km) 3485 Ellipticity (Flattening) 0.003353 Mean density (kg/m 3) 5514 Surface gravity (m/s 2) 9.798 Surface acceleration (m/s 2) 9.780 Escape velocity (km/s) …

**How many km2 is the Earth?**

196.9 million mi²Earth / Surface area

#### What is the radius of Earth in scientific notation?

Earth

Discovered By | Known by the Ancients |
---|---|

Orbit Eccentricity | 0.01671123 |

Orbit Inclination | 0.00005 degrees |

Equatorial Inclination to Orbit | 23.4393 degrees |

Mean Radius | Metric: 6,371.00 km English: 3,958.8 miles Scientific Notation: 6.3710 x 103 km |

**How many km2 is the earth?**

## What is Earth’s radius scientific notation?

**What unit is radius measured in?**

Radian

An arc of a circle with the same length as the radius of that circle subtends an angle of 1 radian. The circumference subtends an angle of 2π radians….

Radian | |
---|---|

Unit system | SI derived unit |

Unit of | Angle |

Symbol | rad, c or r |

Conversions |

### What is Earth’s volume?

Its volume is about 260 billion cubic miles (1 trillion cubic kilometers).

**What is the perimeter of Earth?**

Today we know our planet’s circumference is roughly 40,000 kilometers (24,850 miles).

#### What is the radius of Earth in meters in power?

Answer and Explanation: It is known that the equatorial radius of the earth is R=6371km R = 6371 k m so, convert the unit of radius using the conversion factor.

**What is SI unit of diameter?**

The units of a linear measurement, such as diameter, are reported in meters. The value may also be reported in different derivations of the meter depending on the object being measured, including millimeters, centimeters and kilometers.

## Is the radius measured in cm?

radius is always half the length of its diameter. For example, if the diameter is 4 cm, the radius equals 4 cm ÷ 2 = 2 cm.

**What is the volume of Earth in m3?**

1,097,509,500,000,000,000,000 cubic meters

What is the volume of Earth? What is the volume of Earth? This comes to 1,097,509,500,000,000,000,000 cubic meters. Needless to say, this is very large!

### What is the circumference of radius of the Earth?

Radius, diameter and circumference Earth’s polar radius is 3,950 miles (6,356 km) — a difference of 13 miles (22 km). Using those measurements, the equatorial circumference of Earth is about 24,901 miles (40,075 km).

**What is the radius of the earth in scientific notation in meter?**

Earth radius | |
---|---|

1 R🜨 in … | … is equal to … |

SI base unit | 6.3781×106 m |

Metric system | 6,357 to 6,378 km |

English units | 3,950 to 3,963 mi |

#### What is the earth radius in KM scientific notation?

Size of Sun and other astronomical objects: Earth: radius = 6378 kilometer, diameter = 12756 kilometers.

**What unit is radius?**

The radian, denoted by the symbol rad, is the SI unit for measuring angles, and is the standard unit of angular measure used in many areas of mathematics. The unit was formerly an SI supplementary unit (before that category was abolished in 1995) and the radian is now an SI derived unit.

## What are the different radii of the Earth?

Three different radii as a function of Earth’s latitude. R is the geocentric radius; M is the meridional radius of curvature; and N is the prime vertical radius of curvature. Not to be confused with Geocentric distance.

**What is the radius of the Earth?**

) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid, the radius ranges from a maximum of nearly 6,378 km (3,963 mi) ( equatorial radius, denoted a) to a minimum of nearly 6,357 km (3,950 mi) ( polar radius, denoted b ).

### What are the different radii of curvature of the Earth?

There are two principal radii of curvature: along the meridional and prime-vertical normal sections. In particular, the Earth’s meridional radius of curvature (in the (north–south) meridian direction) at φ is:

**What is the geocentric radius of Earth?**

The geocentric radius is the distance from the Earth’s center to a point on the spheroid surface at geodetic latitude φ : where a and b are, respectively, the equatorial radius and the polar radius.