Convert Troy Pounds to Slugs
Convert Troy Pounds (lb t) to Slugs (slug) instantly and accurately.
Conversion Formula
slug = lb t × 0.02557518186
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 Slugs
A slug is a unit of mass in the British imperial and US customary foot-pound-second (FPS) engineering system, equal to the mass that accelerates at 1 foot per second squared under a force of 1 pound-force - approximately 14.594 kg. The slug was introduced to simplify dynamics calculations in engineering: using slugs ensures that F = ma holds without unit conversion factors when force is in pounds-force and acceleration in ft/s². Aerospace engineers and mechanical engineers working in US customary units use slugs for aircraft mass, structural dynamics, and ballistic calculations.
Quick Reference Table
| Troy Pounds (lb t) | Slugs (slug) |
|---|---|
| 1 lb t | 0.0255752 slug |
| 2 lb t | 0.0511504 slug |
| 5 lb t | 0.127876 slug |
| 10 lb t | 0.255752 slug |
| 25 lb t | 0.63938 slug |
| 50 lb t | 1.27876 slug |
| 100 lb t | 2.55752 slug |