Roman Stadia to Feet (stadium to ft)

1 Roman stadium equals 606.9553806 feet (rounded).

1 Roman stadium = 606.9553806 feet

How to convert Roman stadia to feet

To convert Roman stadia to feet, multiply the number of Roman stadia by 606.9553806. The factor is rounded to 10 significant digits. To go the other way, multiply feet by 0.001647567568 (rounded).

feet = Roman stadia × 606.9553806

Example: 10 Roman stadia = 6,069.553806 feet.

Approximate value. Standards for the Roman stadium varied by place and period, so this converter uses the most commonly cited value. Treat results as estimates, not exact figures.

About these units

Roman Stadium (stadium)

Ancient RomanHistorical unit (no longer in standard use)Approximate value

125 paces or 625 Roman feet, about 185 m. One eighth of a Roman mile.

Borrowed from the Greek stadion, the Latin stadium named a racecourse length that Romans also used as a route unit. It was defined as 125 paces, or 625 Roman feet, and eight of them made one Roman mile. That puts it at about 185 m, the figure used here, and it is the ancestor of the medieval furlong, itself an eighth of a mile.

The Greek original is far less settled. By Herodotus a stadion was 600 Greek feet, but the foot varied across the Greek world, so historians propose anything from roughly 150 m to 210 m. Itinerary, Olympic, Attic and Persian versions have each been argued for, with figures near 157 m, 192 m, 185 m and 196 m respectively. The Roman value lines up with the Attic estimate rather than the others.

Because the Roman unit is defined through a foot of about 296 mm, any change to that foot changes the stadium too. Surveyors and geographers used the unit for road distances and for scaling the world, and today it survives mostly in the word stadium for a sports venue.

1 Roman stadium = 185 meters (approximately).

Sources: Wikipedia: Roman units of measurement; Wikipedia: Stadion (unit); Wikipedia: Roman mile

Foot (ft)

US & ImperialCurrent unit

12 inches. Defined as exactly 0.3048 meters. Still the standard unit for height, altitude in aviation and room dimensions in the US and UK.

Human anatomy supplied the idea: an adult foot is roughly 15 percent of body height. Ancient cultures turned that into standards, but not the same one. The Greek pous was about 302 mm, the standard Roman pes about 295.7 mm, and a Harappan foot of about 335 mm has been reported from the Indus Valley. Historically, a foot fell somewhere between about 250 and 335 mm. Charlemagne tried to standardize units around 790 with little lasting success, and in 1593 English law fixed the statute mile at 5,280 feet.

The modern foot dates from the 1959 International Yard and Pound Agreement, which defined the yard as exactly 0.9144 meter and so the foot as exactly 0.3048 meter; the UK adopted it on 1 January 1964. The US survey foot, defined in 1893 as 1200/3937 meter, was deprecated on 31 December 2022. Feet remain in everyday use for height and rooms in the US, and ISO shipping containers are defined in them. Aviation altitudes use them too: flight level 330 means 33,000 feet.

1 foot = 0.3048 meters (exactly).

Sources: Wikipedia: Foot (unit); Wikipedia: Mile; NIST Guide to the SI, Appendix B.8: conversion factors

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