Not including any mountains, the greatest width of the Earth is its equatorial diameter, which is about 12756 kilometers or about 7926 miles.
over 7 miles
They appear to be similar in width because new crust formation is nearly equal on each side of the fault.
The average width of rivers in the Amazon rainforest is about 1 mile.
The average width of a river in the Amazon rainforest is about 1 mile.
The Earth's mantle begins about 6 miles below the oceanic crust and extends to a depth of around 1,800 miles. So, the distance to the Earth's mantle would vary depending on location, but on average, it is about 1,800 miles from the surface.
The average diameter of the Earth is about 3.66 times that of the Moon. So if a model of the Moon were 1 meter in width, Earth on the same scale would be 3.66 meters wide.
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size
Venus is closest to the Earth in terms of width (diameter). Its mean diameter is 12103km, while Earths is 12742km. Venus' diameter is therefore around 95% of Earths.
238855 miles (384400 kilometers) away from Earth. That is about the width of 30 Earths.
The Earth is NOT a geometric shape because the Earth is not bounded; meaning it does not have sides or measurable depth, height, or width.
Jupiter
The medieval Latin word 'latitudo' has the meaning 'width' and the degrees of latitude are imagined lines running around the width of the Earth.
Saturn's equatorial radius is 60,268 ± 4 km (= 9.4492 Earths), so its visible width at the equator would be 120,536 Km (or almost 20 times the width of Earth).
over 7 miles
No. Mercury is about 40% the width and only 5% the mass of Earth.
Jupiter