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Olympic Track Distances Explained: 100m, 400m, 1500m and the Metric Mile

Why Olympic track races are measured in meters, what the metric mile means, and how 100m and 400m compare to old imperial distances like the 100-yard dash and the mile.

Published June 6, 2026

The short answer

Olympic track and field is measured in meters because the International Olympic Committee and the international athletics federation standardized on metric in the early 1900s. The standard outdoor track is exactly 400 metres around the innermost lane, and the championship middle-distance race is 1500 metres, sometimes called the metric mile. The marathon is 42.195 km (26 miles 385 yards), a number set by a quirk of the 1908 London Olympics.

This guide walks through the standard Olympic distances, what they equal in feet, and why the metric mile differs from the imperial mile.

The 400 metre track

Every standard outdoor track in the world is 400 metres long, measured along the innermost lane (lane 1). In feet, that is 400 × 3.28084 = 1,312.34 feet, or about a quarter of an imperial mile (5,280 ÷ 4 = 1,320 ft). The track is therefore approximately a “quarter mile” but is in fact about 7.7 feet shorter than a true quarter mile.

This near-coincidence is why the old US school standard of 440 yards (1,320 ft, exactly a quarter mile) and the modern Olympic 400 m were treated as interchangeable for decades. They are not exactly the same. A 440-yard race is 2.34 metres longer than a 400-metre race, which adds roughly 0.3 seconds to an elite sprinter’s time. That is enough to matter for record comparison but not enough to confuse a casual viewer.

Tracks are not just 400 metres along the inside. They get longer the further out from the centre you measure. Lane 8 of a standard track is approximately 453 metres around, which is why staggered starts are used for events of 200 metres or longer. Without the stagger, runners in the outer lanes would cover more distance than runners in the inner lanes for the same number of laps.

Olympic sprint distances

The standard Olympic sprint events are 100 m, 200 m, and 400 m. Their equivalents in feet:

RaceMetresFeetOld imperial equivalent
100 m sprint100328.08 ft100 yards (300 ft)
200 m sprint200656.17 ft220 yards (660 ft)
400 m4001,312.34 ft440 yards (1,320 ft)

Notice the pattern. The 100 m is about 28 ft longer than 100 yards, but the 220 and 440 yard distances were specifically chosen to be slightly longer than their metric cousins so that one lap of an imperial track (440 yd) equalled a quarter mile. The metric system did not have that constraint, so 400 m is a clean round number that just happens to be close to the imperial figure.

For an elite sprinter, the difference between 100 m and 100 yards is dramatic in time. The 100-yard dash world record stood for years at around 9.07 seconds (Bob Hayes, 1963). The 100-metre world record is currently 9.58 seconds (Usain Bolt, 2009). Bolt’s 100 m time over the equivalent 100-yard distance would project to roughly 8.7 seconds, but no major meet runs the 100-yard dash any more so direct comparison is hypothetical.

Middle distance: the metric mile

The “metric mile” is 1500 metres, the standard Olympic middle-distance event. In feet, that is 1500 × 3.28084 = 4,921.26 feet.

The imperial mile is 5,280 feet (1,609.34 m). So the metric mile is shorter than the imperial mile by 109 metres or about 358 feet, roughly 6.8 percent. An elite mile runner covers a metric mile about 7.5 seconds faster than an imperial mile at the same pace, all else equal.

In 2026, the world records are:

The 17-second gap reflects the 109-metre extra distance, plus the fact that elite milers run the mile slightly slower per metre than the 1500 because the extra distance starts to demand a different pacing strategy.

Many US scholastic and collegiate meets still run the 1600 metres as a closer metric equivalent of the imperial mile. The 1600 is 4 laps of a 400-metre track, which is convenient. It is not an Olympic distance. World Athletics keeps the 1500 m as the official championship distance.

Long distance: 5000, 10,000, and the marathon

The standard long-distance track events are 5,000 metres and 10,000 metres. In feet, those are 16,404 ft and 32,808 ft respectively. The old British 3-mile race (4,828 m, 15,840 ft) was retired in favour of the 5,000 m in the 1960s. Same for the 6-mile (9,656 m), replaced by the 10,000 m.

The marathon is 42.195 km, which equals 26 miles 385 yards. In pure metres that is 42,195 m, or 138,435 feet. The fractional yardage is the giveaway that the distance is not a clean metric number. It was set by an early Olympic compromise.

The story is that the 1908 London Olympic marathon was originally planned at 26 miles, but the route was extended so that the finish line at White City Stadium would sit in front of the royal box (King Edward VII and Queen Alexandra were watching). The extension added 385 yards (352 m). The exact distance was not formally standardized until the 1921 IAAF Congress, which retroactively made 26 miles 385 yards the marathon distance for all future races. Every marathon since has been measured to that exact distance.

The number looks arbitrary because it is. There is no physical reason a marathon must be exactly that long. It is a historical accident frozen by tradition.

Field events: heights and distances

Field events are also metric. The high jump and pole vault are measured in metres for the bar height. Common Olympic bar heights and their feet equivalents:

Bar height (m)Bar height (ft)
1.75 m5 ft 8.9 in
2.00 m6 ft 6.7 in
2.40 m7 ft 10.5 in
2.45 m (men’s HJ record)8 ft 0.5 in
6.00 m (men’s PV historical)19 ft 8.2 in
6.21 m (men’s PV record, 2024)20 ft 4.5 in

Throwing distances (shot put, discus, javelin, hammer) are measured to the centimetre or millimetre in metres. The discus circle is 2.5 m in diameter, which equals exactly 8 ft 2.4 in.

Swimming: where 50 metres meets 25 yards

Olympic swimming uses metric exclusively. The standard Olympic pool is 50 metres long, which equals 164.04 feet. Long-course swimming events (1500 m freestyle, 800 m freestyle, 400 m IM) are swum in this pool with no flip-turns until the end of each lap.

Short-course swimming uses a 25-metre pool, common in Europe. The US college and high school equivalent is the 25-yard pool (about 22.86 m), which is 8 percent shorter. American short-course records and international short-course records are kept separate because the pool length differs.

The Olympic pool is 50 m × 25 m × 2 m deep minimum. Lane width is 2.5 m. The familiar 100 m and 200 m swimming events are 2 and 4 lengths of the pool. A 1500 m swim is 30 lengths, which is why the event is called “30 lengths” by competitive swimmers as casual shorthand.

Why imperial held on so long in the US

Until the 1980s, American high schools and colleges ran imperial distances: 100, 220, 440, 880 yards, the mile, the 2-mile. The transition to metric was gradual and contentious. Track and field coaches resisted because all the existing records were in imperial. Schools that switched found their athletes could not be ranked against the previous decade.

The compromise was to run “metric meets” alongside “yard meets” for a transition period of roughly 1979 to 1985, after which most NCAA Division I programmes switched fully. High school athletics in many states is still partly imperial. It is common to see “1600 m” and “3200 m” on US high school programmes because those are the metric distances closest to the imperial mile and 2-mile.

The Olympic record book is fully metric since the 1972 Munich Games, so any direct comparison between modern Olympic times and older American imperial times needs a correction factor. That has not stopped enthusiasts from converting and arguing about which records would have stood under the other system.

Convert any race distance

For any meter value you encounter in athletics, the meters-to-feet calculator on the homepage gives you the exact feet equivalent. Common Olympic distances have dedicated pages: 100 m, 200 m, 50 m (the pool length), 10 m (diving platform).


Sources and further reading:

Frequently asked questions

Why is Olympic track measured in meters and not yards?

The International Association of Athletics Federations (now World Athletics) standardized on metric distances in 1912. Most countries already used the metric system, and the Olympic movement followed that consensus. The United States held out for yards in school and college competition for decades but converted official record-keeping to metric for international meets.

What is the metric mile?

The metric mile is the 1500 metres race, the standard middle-distance event at the Olympics and World Athletics Championships. It is shorter than the imperial mile (1609.34 m) by about 109 metres. Some meets also stage the 1600 m as a closer metric equivalent of the imperial mile, but the 1500 m is the championship distance.

Are Olympic tracks 400 metres or 440 yards?

Olympic tracks are 400 m exactly, measured along the innermost lane. The old standard of 440 yards (about 402.34 m) survived in US schools until the 1980s. The two are close enough that older track records have to be adjusted by a tiny correction factor when compared to modern times.

Why is the marathon 42.195 km?

The marathon's modern length was set at the 1908 London Olympics, where the race was extended so that the finish line would sit in front of the royal box at White City Stadium. The exact measurement came out to 26 miles 385 yards, which is 42.195 km, and the figure was standardized in 1921.

How long is 100 metres in feet?

100 metres equals 328.08 feet, or about 328 ft 1 in. It is roughly 9 percent longer than the old 100-yard dash distance (300 ft). That extra 28 feet is why 100 m sprint times are noticeably slower than 100 yd times.

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