Roman units
Convert Roman length units with an explicitly selected 296 mm foot reference.
Your inputs
Enter an amount and select the source and target units. Results update as you edit.
Calculations run in your browser. Inputs are not saved or sent to analytics.
Your result
Complete the inputs to see your result.
How it works
- Converted estimate = Amount × Conversion factor
- Roman foot (pes) ≈ 0.296 m; Roman digit = Roman foot (pes)/16; Roman palm = Roman foot (pes)/4
- Roman cubit = 1.5 × Roman foot (pes); Roman pace (passus) = 5 × Roman foot (pes); Roman mile = 5000 × Roman foot (pes)
Assumptions and limitations
Approximate historical reference. SI arithmetic does not make reconstructed ancient dimensions exact; use the named profile and its sources.
Sources
- Stiros (2022) — Doric Foot and Metrological Implications, Makyneia (CC BY) Sources reviewed: 2026-10-05
- Vitruvius — On Architecture III: Roman subdivisions Sources reviewed: 2026-10-05
- University of Chicago Logeion — Passus, Pliny’s five-foot pace Sources reviewed: 2026-10-05
- University of Florence — Roman mile as 1000 paces Sources reviewed: 2026-10-05


