The units of measurement of ancient Rome were generally consistent and well documented.
Bronze modius measure (4th century AD) with inscription acknowledging Imperial regulation of weights and measures
Roman milestone in modern Austria (AD 201), indicating a distance of 28 Roman miles (~41 km) to Teurnia
A Roman steelyard weight of one dodrans, i.e. 3⁄4 libra
Mile
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The mile, sometimes the international mile or statute mile to distinguish it from other miles, is a British imperial unit and United States customary unit of length; both are based on the older Englis
Ancient Roman units of measurement
…path, track 120 pedes 35.5 m 116.496 ft 24 passus or 12 decembeda stadium stade 625 pedes 185 m 607.14 ft 600 Greek feet or 125 passus or 1⁄8 mille mille passus mille passuum (Roman) mile 5,000 pedes 1.48 km 4,854 ft 0.919 mi 1000 passus or 8 stadia leuga leuca (Gallic) league 7,500 pedes 2.22 km 7,281 ft 1.379…
A milestone in the City of Westminster showing the distance from Kensington Road to Hounslow and Hyde Park Corner in miles
The supposed remains of the Golden Milestone, the zero-mile marker of the Roman road network, in the Roman Forum
Milestone on Mountbellew Bridge, erected c. 1760. Distances are given in Irish miles.
Edinburgh's "Royal Mile"—running from the castle to Holyrood Abbey—is roughly a Scots mile long.