Metric Tons to Libras (Castilian) (t to libra)
1 metric ton equals 2,173.473624 libras (Castilian) (rounded).
How to convert metric tons to libras (Castilian)
To convert metric tons to libras (Castilian), multiply the number of metric tons by 2,173.473624. The factor is rounded to 10 significant digits. To go the other way, multiply libras (Castilian) by 0.000460093.
libras (Castilian) = metric tons × 2,173.473624
Example: 10 metric tons = 21,734.73624 libras (Castilian).
Approximate value. Standards for the libra (Castilian) 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)
Libra (Castilian) (libra)
About 460.09 g, the Castilian pound. The Spanish libra and arroba were used throughout Spain and its colonies.
Latin libra, a pound, gave Castilian Spanish its basic weight, subdivided into 16 onzas of about 28 g each. Castile kept the unit through the Middle Ages, and the national standard enacted in 1801 fixed it at exactly 0.460093 kg, the figure used here. That is about 460 g, a little more than a half-ounce above the avoirdupois pound.
Before and after that decree, local libras differed a great deal. Huesca used one near 0.351 kg, Pontevedra one near 0.579 kg, and apothecaries in Barcelona used a medicinal libra of only 0.300 kg. Standardization on paper did not remove these customs quickly, so merchants had to know which city's pound a price referred to.
Larger Castilian weights were built from the libra. The arroba was 25 libras, about 11.5 kg, and the quintal 100 libras, about 46 kg. These were used for wool, olive oil, tobacco, silver and other goods across Spain and its American colonies until metric weights replaced them in the nineteenth century, though the libra survives informally as the pound in Latin America.
1 libra (Castilian) = 0.460093 kilograms (approximately).
Sources: Wikipedia: Spanish customary units; Wikipedia: Arroba
Related conversions
- Libras (Castilian) to metric tons (reverse)
- Metric tons to kilograms
- Metric tons to grams
- Metric tons to pounds
- Metric tons to ounces
- Metric tons to milligrams
- Metric tons to micrograms
- Metric tons to carats
- Metric tons to stone
- Metric tons to short tons
- Metric tons to long tons
- Metric tons to troy ounces
- Metric tons to daltons
- Kilograms to libras (Castilian)
- Grams to libras (Castilian)
- Pounds to libras (Castilian)
- Ounces to libras (Castilian)
See all weight & mass units.