how big is the earth across
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How big is the Earth? Well, here are some numbers to make you think again! The circumference of the Earth is about 40,000 kilometers or 24,900 miles. This refers to how big the Earth is around it’s fattest middle part, like if you were to measure the length of a string going around the center of the Earth at the equator.he total surface area of the Earth is about 500,000,000 square kilometers. “Surface area” refers to all of the area of the lands surface, such as oceans and continents. It’s sort of like the total amount of space on the Earth that you could walk on or swim through.
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How Many Miles Around the Earth? Measured at the equator, the Earth has a circumference of 40,075.017 km or 24,901.461 miles. But measured from pole to pole, that is to say, along the meridian line, the Earth has a circumference of 40,007.86 km or 24,859.73 miles. A picture of Earth taken by Apollo 11 astronauts.
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How large is Earth? How large is Earth? Earth's circumference (the distance all the way around the equator) is 24,901 miles (40,075 kilometers). Its diameter (the distance from one side to the other through Earth's center) is 7,926 miles (about 12,756 kilometers). Earth is slightly smaller when measured between the North and South Poles which gives a diameter of 7,907 miles (12,725 kilometers). Earth bulges out a bit more around the equator than around the poles because of its rotation (spin). Cool Cosmos is an IPAC website.
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What is the circumference of the earth? What is the circumference of the earth? But, if you measure the earth through the poles the circumference is a bit shorter - 24,859.82 miles (40,008 km). This the earth is a tad wider than it is tall, giving it a slight bulge at the equator. This shape is known as an ellipsoid or more properly, geoid (earth-like).
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The moon is about as wide as earth?   The moon measures about 2160 miles (3476 km) across. The distance is about one fourth the diameter of the Earth, and 400 times smaller than that of the sun. 33 people found this useful.
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Circumference of the Earth The circumference of the Earth in kilometers is 40,075 km, and the circumference of the Earth in miles is 24,901. In other words, if you could drive your car around the equator of the Earth (yes, even over the oceans), you’d put on an extra 40,075 km on the odometer.
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How Big Is Earth? Earth is the largest of the terrestrial planets of the inner solar system, bigger than Mercury, Venus and Mars. Radius, diameter and circumference. The mean radius of Earth is 3,959 miles (6,371 kilometers). However, Earth is not quite a sphere.
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What is the distance around the world on the equator? What is the circumference of the Earth? How far around is the Earth? The average radius of the Earth is 3,959 miles (6,374 kilometers). The equitorial diameter of the Earth (distance from one side of the Earth to the other at the equator) is about 7,926 miles. The ratio of the circumference to the diameter of a circle (circumference/diameter) is written as the symbol pi. Pi is approximately 3.141592.
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Essential Facts About Planet Earth Here you will find a listing of essential facts about planet Earth, the home to all of humanity: The circumference of the Earth at the equator is 24,901.55 miles (40,075.16 kilometers), but, if you measure the earth through the poles the circumference is a bit shorter, 24,859.82 miles (40,008 km). The shape of the Earth: The earth is a bit wider than it is tall, giving it a slight bulge at the equator.
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- Confidence votes 59. The moon measures about 2160 miles (3476 km) across. The distance is about one fourth the diameter of the Earth, and 400 times smaller than that of the sun.
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Moon Dust and the Age of the Solar System The Earth has a surface area of 196,939,900 square miles. Areas covered by water is about (361,740,000 km), square miles equals about 71% of the total surface of the Earth. The Earth has a surface area of 196,939,900 square miles. Areas covered by water is about (361,740,000 km), square miles equals about 71% of the total surface of the Earth.
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- The area of the World Ocean is about 361.9 million square kilometers (139.7 million square miles), which covers about 70.9% of Earth's surface, and its volume is approximately 1.335 billion cubic kilometers (320.3 million cubic miles).
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- The Sun is 864,400 miles (1,391,000 kilometers) across. This is about 109 times the diameter of Earth. The Sun weighs about 333,000 times as much as Earth. It is so large that about 1,300,000 planet Earths can fit inside of it.
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How large is Earth? How large is Earth? Earth's circumference (the distance all the way around the equator) is 24,901 miles (40,075 kilometers). Its diameter (the distance from one side to the other through Earth's center) is 7,926 miles (about 12,756 kilometers). Earth is slightly smaller when measured between the North and South Poles which gives a diameter of 7,907 miles (12,725 kilometers).
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- Let’s take a look at how big our planet is. Blue marble Earth. Image credit: NASA. First, the equatorial diameter of Earth is 12,756 km. In other words, if you dug a tunnel on the equator that went straight down and went right through the center of the Earth, it would be about 12,756 km long. Just for comparison, that’s about 1.9 times the diameter of Mars.
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What Is the Polar Circumference of Earth? The circumference of the Earth, measured along a line of longitude, is just under 24,860 miles. Earth's equatorial circumference, however, is somewhat greater, at slightly less than 24,902 miles. This difference is a result of the planet's rotation.
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Pacific Ocean The Pacific Ocean encompasses approximately one-third of the Earth's surface, having an area of 165.2 million square kilometers (63.8 million square miles)—significantly larger than Earth's entire landmass of some 150 million square kilometers (58 million square miles).
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Atlantic Ocean Covering approximately 22% of Earth's surface, the Atlantic is second in size to the Pacific. With its adjacent seas, it occupies an area of about 106,400,000 square kilometres (41,100,000 sq mi); without them, it has an area of 82,400,000 square kilometres (31,800,000 sq mi).overing approximately 22% of Earth's surface, the Atlantic is second in size to the Pacific. With its adjacent seas, it occupies an area of about 106,400,000 square kilometres (41,100,000 sq mi); without them, it has an area of 82,400,000 square kilometres (31,800,000 sq mi).
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Nautical & Sailing Terms & Nomenclature Europe covers about 10,180,000 square kilometers, which accounts for about 2% of the surface of the earth, and a 6.8% of the total land area on the earth. This makes it the second smallest continent as per the surface area.
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Geodesy and the Size and Shape of the Planet Earth Earth is classified as the largest of the terrestrial planets based on its circumference and diameter as well. At the equator, Earth's circumference is 24,901.55 miles (40,075.16 km). It is slightly smaller between the North and South poles at 24,859.82 miles (40,008 km).
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How Big Is Earth? The total surface area of Earth is about 197 million square miles (509 million square km). About 71 percent is covered by water and 29 percent by land.
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- The circumference of the earth at the equator is 24,901.55 miles (40,075.16 kilometers). As always, a quick Google search gave this marvellous answer. http://geography.about.com/libra...
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How many miles around is the earth? The average radius of the Earth is 3,959 miles (6,374 kilometers). The equitorial diameter of the Earth (distance from one side of the Earth to the other at the equator) is about 7,926 miles. The ratio of the circumference to the diameter of a circle (circumference/diameter) is written as the symbol pi. Pi is approximately 3.141592. 3.14159265 3.1415926535.
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How Many Miles Wide Is the Earth? Because the Earth slightly flattens out at the poles, its shape is an oblate spheroid, meaning that it is similar to a sphere but is not perfectly regular. The circumference of the Earth at the equator is 24,902 miles. Again, that is a bit more than its circumference from pole to pole, which is 24,860 miles. At 5.52 grams per cubic centimeter, the Earth is the densest planet in the solar system.
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-   The moon measures about 2160 miles (3476 km) across. The distance is about one fourth the diameter of the Earth, and 400 times smaller than that of the sun.
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- Radius of earth is about 6371 km. So total surface area is 5.1E8 km^2. There are 9.29E8 ft^2 in a km^2, so total area of earth's surface in square feet is 47.4E16 ft^2. About 29% of earth's surface is land, so land area is 13.74E16 ft^2. Steve Williams' answer gives 6.81E14 ft^2 habitable area. Which would imply only 0.49% of land surface is habitable.