How do you convert yards to miles?
1,760 yards make a mile, exactly, so divide by 1,760. It doesn't break down into anything friendlier, sadly.
5,000 yards is about 2.84 miles. 440 yards is a quarter mile, which is why older running tracks were built to that length.
If you'd rather think in metres, 1,760 yards is exactly 1,609.344 m.
Definition and origin of yards
A yard is 3 feet and is defined as exactly 0.9144 meters, so it is a little shorter than a meter – 91.44 centimeters. Each foot is 12 inches.
Before there was a standard, the length of a yard varied from place to place. In Britain it was fixed in 1855 as the Imperial Standard Yard, a bronze bar kept in London, until the 1959 agreement defined it as 0.9144 meters.
Today the yard is mostly seen on road signs and sports pitches in the UK and US. A cricket pitch is 22 yards long – one chain – and an American football field is 100 yards between the goal lines.
Definition and origin of miles
The mile is 5,280 feet or 1,760 yards, which is exactly 1,609.344 meters. It comes from the Roman mille passus, 'a thousand paces', which was 5,000 Roman feet.
Roman miles survived into the Middle Ages, but the length of a mile varied from region to region across Europe. England fixed the statute mile at 5,280 feet in 1593, under Elizabeth I, and the US inherited it.
The yard is 3 feet or 36 inches, and is traditionally traced to the distance from the nose of King Henry I to the thumb of his outstretched arm. The 'yardland' is unrelated – that was a medieval farm holding, not a length.