Convert Avoirdupois Drams to Long Tons
Convert Avoirdupois Drams (dr av) to Long Tons (L/T) instantly and accurately.
Conversion Formula
L/T = dr av × 1.743861607e-6
About Avoirdupois Drams
An avoirdupois dram (dr av) is 1/16 of an avoirdupois ounce - approximately 1.772 grams. Part of the avoirdupois system that governs everyday trade weights in the UK and US, it was historically used to measure small quantities of goods and spices in commerce. While rarely used in modern commerce (having been replaced by grams in most applications), the avoirdupois dram still appears in some spice and herbalist contexts, in US gunpowder loading data (where charges are specified in grains and drams), and in archaic recipe books.
About Long Tons
A long ton (UK ton, displacement ton) equals 2,240 pounds or exactly 1,016.0469088 kg. The standard ton in the United Kingdom and Commonwealth countries, it equals 20 long hundredweights of 112 lb each. Naval architecture and ship displacement are specified in long tons: the displacement of a warship or cargo vessel is the weight of water it displaces, expressed in long tons. The Titanic had a displacement of approximately 52,310 long tons. British agricultural, mining, and coal trade statistics from the 18th through mid-20th centuries used long tons exclusively.
Quick Reference Table
| Avoirdupois Drams (dr av) | Long Tons (L/T) |
|---|---|
| 1 dr av | 1.744 × 10-6 L/T |
| 2 dr av | 3.488 × 10-6 L/T |
| 5 dr av | 8.719 × 10-6 L/T |
| 10 dr av | 1.744 × 10-5 L/T |
| 25 dr av | 4.36 × 10-5 L/T |
| 50 dr av | 8.719 × 10-5 L/T |
| 100 dr av | 0.000174386 L/T |