Convert Troy Pounds to Kilograms
Convert Troy Pounds (lb t) to Kilograms (kg) instantly and accurately.
Conversion Formula
kg = lb t × 0.3732417216
About Troy Pounds
A troy pound (lb t) equals 12 troy ounces or 5,760 grains - approximately 373.24 grams. It is lighter than the common avoirdupois pound (453.59 g) because the troy system divides the pound into 12 ounces rather than 16. Historically used across Europe for trade in precious metals and pharmaceuticals, the troy pound was the legal standard in England from the 15th century until 1878. In the United States, the troy pound was once the official standard for coinage but was abolished for commercial use in 1828.
About Kilograms
The kilogram (kg) is the SI base unit of mass - the fundamental unit from which all other mass measurements in the metric system are derived. Since 2019 it has been defined by fixing the Planck constant h to exactly 6.62607015 × 10⁻³⁴ J·s, replacing the 130-year-old International Prototype Kilogram (a platinum-iridium cylinder kept in Sèvres, France). The kilogram governs daily life worldwide: body weight in most countries, grocery shopping, luggage allowances, postal rates, freight pricing, and ingredient quantities in cooking all reference kilograms.
Quick Reference Table
| Troy Pounds (lb t) | Kilograms (kg) |
|---|---|
| 1 lb t | 0.373242 kg |
| 2 lb t | 0.746483 kg |
| 5 lb t | 1.86621 kg |
| 10 lb t | 3.73242 kg |
| 25 lb t | 9.33104 kg |
| 50 lb t | 18.6621 kg |
| 100 lb t | 37.3242 kg |