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Earth Measurement Converter

Convert between different Earth measurements including circumference, diameter, and more

Earth Measurement Converter

For Perspective:

0.1 times the distance to the Moon

Common Earth Measurements

Calculated Earth Measurements

Based on your input value

Polar Circumference
40,008 Kilometers
40,008,000 Meters24,859.81 Miles
Equatorial Diameter
12,756 Kilometers
12,756,000 Meters7,926.21 Miles
Polar Diameter
12,714 Kilometers
12,714,000 Meters7,900.11 Miles
Mean Diameter
12,742 Kilometers
12,742,000 Meters7,917.51 Miles
Total Surface Area
510,072,000 Square
5.10e+14 Square196,939,819.34 Square
Land Area
148,940,000 Square
1.49e+14 Square57,506,031.88 Square
Ocean Area
361,132,000 Square
3.61e+14 Square139,433,787.46 Square
Volume
1.08e+12 Cubic
1.08e+21 Cubic2.60e+11 Cubic
Mass
5.97e+24 Kilograms
5.97e+27 Grams5.97e+21 Metric
Average Density
5,515 Kilograms
5.52 Grams

Earth Facts

Earth's Shape

Earth is an oblate spheroid, meaning it's slightly flattened at the poles and bulging at the equator due to its rotation. This results in a difference of about 43 km between the equatorial and polar diameters.

Land & Water Distribution

About 71% of Earth's surface is covered by water, with the remaining 29% being land. The Pacific Ocean alone covers more area than all landmasses combined.

Earth's Structure

Earth consists of several layers: a solid inner core, liquid outer core, mantle, and crust. The crust is extremely thin relative to Earth's size—comparable to the skin of an apple.

Earth in the Solar System

Earth is the fifth largest planet in our solar system and the largest of the terrestrial planets. It orbits the Sun at an average distance of 149.6 million km (1 AU).

Earth Comparisons

Earth vs. Other Planets:
  • Earth is the 5th largest planet by diameter (12,742 km)
  • Jupiter, the largest planet, is 11 times wider than Earth
  • Earth is the densest planet in our solar system
  • Earth has the strongest magnetic field of all rocky planets
Earth's Atmosphere:
  • Extends about 100 km above the surface
  • Composed of 78% nitrogen, 21% oxygen, 1% other gases
  • Contains about 5.15 × 10^18 kg of air
  • Blocks harmful solar radiation and regulates temperature
Earth's Water:
  • Oceans contain about 1.35 billion cubic kilometers of water
  • Water covers about 71% of Earth's surface
  • Only 2.5% of Earth's water is freshwater
  • The average ocean depth is about 3.7 kilometers

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Earth Visualization

Human Scale

Equatorial Circumference

Your Input: 40,075 kmScale: 1x
The distance around Earth at the equator (40,075 km)

Planetary Scale Reference

Earth

Diameter: 12,742 km

Mars

Diameter: 6,779 km (0.53× Earth)

Jupiter

Diameter: 139,820 km (11× Earth)

Sun

Diameter: 1,392,700 km (109× Earth)

Visualization Controls

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Earth Measurement Reference

Equatorial Circumference:40,075 km
Polar Circumference:40,008 km
Equatorial Diameter:12,756 km
Polar Diameter:12,714 km
Surface Area:510,072,000 km²
Volume:1.08e+12 km³
Mass:5.97e+24 kg
Average Density:5,515 kg/m³

About the Earth Measurement Converter

Convert between different Earth measurements including circumference, diameter, and more All conversions run instantly in your browser and nothing you enter is sent to a server.

Common Conversion Formulas

FromToFormula
Equatorial RadiusPolar RadiusPolar Radius = Equatorial Radius × 0.9966
Radius (km)Circumference (km)Circumference = 2π × Radius
Latitude (φ)Distance per Degree (km)Latitude: 111.132 km, Longitude: 111.32 × cos(φ) km

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