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, sextarius ≈ 0.54 L, iugerum ≈ 2520 m².

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.

Unit Converter

Mensor

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

Convert between units across mass, length, temperature, area, volume, speed, duration, data storage, and pressure. Roman measures — libra, pes, stadium, sextarius, and more — appear in a separate section marked Antiqua.

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.

KilogramkgGramgPoundlb

OunceozTonnetStonest

Milligrammg

Roman measures

Libra (Roman pound)AntiqualibUncia (Roman ounce)Antiquaunc

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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, sextarius ≈ 0.54 L, iugerum ≈ 2520 m².
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.