how many miles to center of the earth?

Answer 1

Equatorial radius: a
The Earth's equatorial radius, or semi-major axis, is the distance from its centre to the equator and equals 6,378.135 km (≈3,963.189 mi; ≈3,443.917 nmi).

[edit]
Polar radius: b
The Earth's polar radius, or semi-minor axis, is the distance from its center to the North and South Poles, and equals 6,356.750 km (≈3,949.901 mi; ≈3,432.370 nmi).

Answer 2

since the earth is not a regular sphere, the answers differ depending from where you measure. the distance is about 3900 miles.

Answer 3

at the equator the distance from the center is 6,378.135 km (≈3,963.189 mi; ≈3,443.917 nmi).

the distance from its center to the North and South Poles, is 6,356.750 km (≈3,949.901 mi; ≈3,432.370 nmi).

However, local variations occurs..

Answer 4

About 4000 or so

Answer 5

Not sure. I'll be over in five minutes with a shovel and some beer.

Answer 6

Depends on where your standing, and from that point, how far off the ground you are going to start.

Answer 7

Approximately 6400 km. I don't know mile,sorry.

Answer 8

About 4,000 miles.

Answer 9

EARTH FACT SHEET

Bulk parameters

Mass (1024 kg) 5.9736
Volume (1010 km3) 108.321
Equatorial radius (km) 6378.1
Polar radius (km) 6356.8
Volumetric mean radius (km) 6371.0
Core radius (km) 3485
Ellipticity (Flattening) 0.00335
Mean density (kg/m3) 5515
Surface gravity (m/s2) 9.798
Surface acceleration (m/s2) 9.780
Escape velocity (km/s) 11.186
GM (x 106 km3/s2) 0.3986
Bond albedo 0.306
Visual geometric albedo 0.367
Visual magnitude V(1,0) -3.86
Solar irradiance (W/m2) 1367.6
Black-body temperature (K) 254.3
Topographic range (km) 20
Moment of inertia (I/MR2) 0.3308
J2 (x 10-6) 1082.63
Number of natural satellites 1
Planetary ring system No


Orbital parameters

Semimajor axis (106 km) 149.60
Sidereal orbit period (days) 365.256
Tropical orbit period (days) 365.242
Perihelion (106 km) 147.09
Aphelion (106 km) 152.10
Mean orbital velocity (km/s) 29.78
Max. orbital velocity (km/s) 30.29
Min. orbital velocity (km/s) 29.29
Orbit inclination (deg) 0.000
Orbit eccentricity 0.0167
Sidereal rotation period (hrs) 23.9345
Length of day (hrs) 24.0000
Obliquity to orbit (deg) 23.45


Earth Mean Orbital Elements (J2000)

Semimajor axis (AU) 1.00000011
Orbital eccentricity 0.01671022
Orbital inclination (deg) 0.00005
Longitude of ascending node (deg) -11.26064
Longitude of perihelion (deg) 102.94719
Mean Longitude (deg) 100.46435


North Pole of Rotation

Right Ascension: 0.00 - 0.641T
Declination : 90.00 - 0.557T
Reference Date : 12:00 UT 1 Jan 2000 (JD 2451545.0)
T = Julian centuries from reference date


Terrestrial Magnetosphere

Dipole field strength: 0.3076 gauss-Re3
Latitude/Longitude of dipole N: 78.6 degrees N/70.1 degrees W
Dipole offset (planet center to dipole center) distance: 0.0725 Re
Latitude/Longitude of offset vector: 18.3 degrees N/147.8 degrees E

Note: Re denotes Earth radii, 6,378 km


Terrestrial Atmosphere

Surface pressure: 1014 mb
Surface density: 1.217 kg/m3
Scale height: 8.5 km
Total mass of atmosphere: 5.1 x 1018 kg
Total mass of hydrosphere: 1.4 x 1021 kg
Average temperature: 288 K (15 C)
Diurnal temperature range: 283 K to 293 K (10 to 20 C)
Wind speeds: 0 to 100 m/s
Mean molecular weight: 28.97 g/mole
Atmospheric composition (by volume, dry air):
Major : 78.084% Nitrogen (N2), 20.946% Oxygen (O2),
Minor (ppm): Argon (Ar) - 9340; Carbon Dioxide (CO2) - 350
Neon (Ne) - 18.18; Helium (He) - 5.24; CH4 - 1.7
Krypton (Kr) - 1.14; Hydrogen (H2) - 0.55
Water is highly variable, typically makes up about 1%

Answer 10

to many for me to measure