Roman Stadia to Yards (stadium to yd)
1 Roman stadium equals 202.3184602 yards (rounded).
How to convert Roman stadia to yards
To convert Roman stadia to yards, multiply the number of Roman stadia by 202.3184602. The factor is rounded to 10 significant digits. To go the other way, multiply yards by 0.004942702703 (rounded).
yards = Roman stadia × 202.3184602
Example: 10 Roman stadia = 2,023.184602 yards.
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)
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
Yard (yd)
3 feet or 36 inches, exactly 0.9144 meters. Used for sports fields, fabric and short distances in the US and UK.
Yard descends from the Old English gerd or gyrd, meaning a branch, stave or measuring rod. It first appears in the late seventh-century laws of Ine of Wessex, though there it names a tax unit, the yardland. Around 959 to 963 King Edgar ordered that the measure held at Winchester be used throughout his realm, the earliest record of a prototype. A story that Henry I fixed the yard as the distance from his nose to his thumb is later folklore, and the true origin, whether pace, cubit or waist, remains speculative.
Britain defined the Imperial Standard Yard in 1824 as the distance between two marks on a brass rod at 62 degrees Fahrenheit. A fire in 1834 damaged the standard, a replacement was made in 1845, and the Weights and Measures Act 1855 recognized it. The 1959 international agreement then fixed the yard at exactly 0.9144 meter. Today it measures American and Canadian football fields, association football pitches and cricket pitches, appears on UK road signs for short distances, and is still used to sell fabric in the US and UK.
1 yard = 0.9144 meters (exactly).
Sources: Wikipedia: Yard; Wikipedia: Inch; NIST Guide to the SI, Appendix B.8: conversion factors
Related conversions
- Yards to Roman stadia (reverse)
- Roman stadia to meters
- Roman stadia to kilometers
- Roman stadia to centimeters
- Roman stadia to millimeters
- Roman stadia to inches
- Roman stadia to feet
- Roman stadia to miles
- Meters to yards
- Kilometers to yards
- Centimeters to yards
- Millimeters to yards
- Inches to yards
- Feet to yards
- Miles to yards
- Micrometers to yards
- Nanometers to yards
- Nautical miles to yards
- Pixels (CSS) to yards
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See all length units.