What is the circumference of the world/earth?

[ash318]

I was told that if you walk 52,000 miles than you have walked the world once , is this true?

[dot.hawkes]

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). This is because 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).

( from ask.com)

[Clanad]

Actually, one would have walked twice the distance around the equator... that being just under 25,000 miles (a bit shorter if walked around the poles)...

[Trevilino]

I was always told that the circumference of the earth at the equator is approx 25,000 miles so I think you may have walked the world once and then done a lap of honour

[Clanad]

Oops, sorry dot... you weren't there when I posted...

[dot.hawkes]

neither were you and so i posted lol

[mibn2cweus]

Walking around the Earth equals 17 miles a day for four years. Of course you'll need to learn to walk on water first.

At 17 miles a day you could walk the distance to the Moon in 38 years . . . but then you'll need to learn to do this

[heathfield]

Tut, tut. 'Geoid'? That's tautology, Dot! The shape of the Earth is often described as an 'Oblate spheroid'