Convert Avoirdupois Drams to Kilotonnes
Convert Avoirdupois Drams (dr av) to Kilotonnes (kt) instantly and accurately.
Conversion Formula
kt = dr av × 1.771845195e-9
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 While rarely used in modern commerce (having been replaced by grams in most applications), the avoirdupois dram still appears in some spice and herbalist contexts, in US gunpowder loading data (where charges are specified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 Kilotonnes
A kilotonne (kt) equals 1,000 metric tonnes (10⁶ kg). In military and geopolitical contexts, nuclear weapon yields are expressed in kilotons of TNT equivalent (kt TNT): the atomic bomb dropped on Hiroshima had a yield of approximately 15 kt TNT. Environmental science uses kilotonnes for reporting regional greenhouse gas inventories, industrial pollutant releases, and annual waste generation. Mining operations quote ore extraction rates in kilotonnes per day. The global atmospheric inventory of various trace gases is reported in kilotonnes.
Quick Reference Table
| Avoirdupois Drams (dr av) | Kilotonnes (kt) |
|---|---|
| 1 dr av | 1.772 × 10-9 kt |
| 2 dr av | 3.544 × 10-9 kt |
| 5 dr av | 8.859 × 10-9 kt |
| 10 dr av | 1.772 × 10-8 kt |
| 25 dr av | 4.43 × 10-8 kt |
| 50 dr av | 8.859 × 10-8 kt |
| 100 dr av | 1.772 × 10-7 kt |