How accurate are Roman unit conversions?

Roman measures varied by period and region. We use commonly cited values: libra ≈ 0.327 kg, pes ≈ 0.296 m, stadium ≈ 185 m, milia passuum ≈ 1480 m.

Does temperature conversion handle negative values?

Yes. Celsius, Fahrenheit, and Kelvin conversions account for offsets correctly.

Is anything sent to a server?

No. All conversion math runs in your browser.

Mensor

Unit Converter

The mensor's tables — metric, imperial, and Roman.

Convert between units across mass, length, temperature, area, volume, speed, duration, data storage, and pressure. Includes Roman measures: libra, pes, stadium, and milia passuum.

The mensor surveyed camp boundaries and aqueduct grades. Rome measured in librae and pedes long before the metric system.

Dimension

Mass

Editing Kilogram; every unit below updates instantly.

KilogramkgLibra (Roman pound)lb₣Gramg

PoundlbOunceozTonnet

StonestMilligrammg

Related tools

How to use

Pick a dimension (mass, length, etc.).
Enter a value and select from/to units.
Read the converted result instantly.

FAQ

How accurate are Roman unit conversions?: Roman measures varied by period and region. We use commonly cited values: libra ≈ 0.327 kg, pes ≈ 0.296 m, stadium ≈ 185 m, milia passuum ≈ 1480 m.
Does temperature conversion handle negative values?: Yes. Celsius, Fahrenheit, and Kelvin conversions account for offsets correctly.
Is anything sent to a server?: No. All conversion math runs in your browser.