Pound (troy) is mass unit, symbol: [lb t]. Definition of 1 pound (troy) ≡ 5760 grains . 64.79891 g x 5760 = 0.3732417216 kg. Compared to kilogram, pound (troy) is smaller unit.
• 1 [lb t] = (exactly) `0.3732417216` [kg]
• 1 [kg] = (exactly) `1/(0.3732417216)` [lb t] = 2.679228880719 [lb t]
Multiply convert of pound (troy) to common mass units:[lb t]
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National Institute of Standards and Technology (October 2011). Butcher, Tina; Cook, Steve; Crown, Linda et al. eds. Appendix C – General Tables of Units of Measurement (PDF) p. C-6. http://www.nist.gov/pml/wmd/pu...