Metric Tons to Roman Pounds (t to libra)
1 metric ton equals 3,040.437823 Roman pounds (rounded).
How to convert metric tons to Roman pounds
To convert metric tons to Roman pounds, multiply the number of metric tons by 3,040.437823. The factor is rounded to 10 significant digits. To go the other way, multiply Roman pounds by 0.0003289.
Roman pounds = metric tons × 3,040.437823
Example: 10 metric tons = 30,404.37823 Roman pounds.
Approximate value. Standards for the Roman pound (libra) varied by place and period, so this converter uses the most commonly cited value. Treat results as estimates, not exact figures.
About these units
Metric Ton (t)
1,000 kilograms (about 2,204.6 lb), also spelled tonne. Used for cargo, grain and vehicle weights outside the US.
Barrels gave the tonne its name. The word goes back to a Germanic root for a large cask, the tun, and a full tun could easily weigh around a tonne. In English this became ton; the spelling tonne has been used in France since 1842, where it replaced the older tonneau, and pre-metric French tonnes were 2,000 livres, about 979 kg. Once the metric system took hold, the tonne was fixed at 1,000 kilograms, which is the mass of roughly a cubic metre of water.
The unit is accepted for use with the SI, and its symbol is a lowercase t with no period. Because it sits close to the old English ton, the two get confused: the short ton used in the US is about 10 percent lighter than a tonne, while the long ton differs by less than 2 percent. NIST calls the unit the metric ton, and the spelling tonne is rare in the US. Very large quantities are stated in prefixed forms such as the megatonne, which equals a teragram. In explosives, a tonne of TNT is taken as about 4.2 gigajoules.
1 metric ton = 1,000 kilograms (exactly).
Sources: Wikipedia: Tonne; Wikipedia: Ton; NIST Guide to the SI, Appendix B.8 (mass conversions)
Roman Pound (libra) (libra)
About 328.9 g, divided into 12 unciae. The abbreviation 'lb' for pound comes from libra.
Libra is the Latin word for a balance, and it named both the scales and the standard weight placed on them. It is also known simply as the Roman pound, and the English abbreviation lb is generally traced back to it.
Roman weights counted in twelfths. A libra held 12 unciae, and further fractions such as the scrupulum and the tiny siliqua, about 0.19 g, allowed fine work. The coin called the as shared this scheme: it began as a pound of bronze, then was cut to two ounces after the First Punic War, one ounce during the Second, and half an ounce by the Lex Papiria of 131 BC.
Modern estimates for the libra range from about 322 to 329 g. The figure used here is 328.9 g, about 11.6 oz or 0.725 of an English pound, which is lighter than the avoirdupois pound of 453.6 g. Surviving weights differ among themselves, which is why the exact value stays uncertain.
1 Roman pound (libra) = 0.3289 kilograms (approximately).
Sources: Wikipedia: Roman pound; Wikipedia: Roman units of measurement
Related conversions
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- Metric tons to carats
- Metric tons to stone
- Metric tons to short tons
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- Metric tons to troy ounces
- Metric tons to daltons
- Kilograms to Roman pounds
- Grams to Roman pounds
- Pounds to Roman pounds
- Ounces to Roman pounds
See all weight & mass units.