Convert Stones to Kilotonnes
Convert Stones (st) to Kilotonnes (kt) instantly and accurately.
Conversion Formula
kt = st × 6.350293180e-6
About Stones
A stone (st) equals 14 pounds or approximately 6.350 kg. It is the standard unit for expressing human body weight in the United Kingdom and Ireland, where a person will say they weigh '11 stone 4' (meaning 11 stone and 4 pounds, or 158 lb / 71.7 kg). Despite the UK's official adoption of the metric system, stones remain the dominant unit for personal body weight on British bathroom scales, in doctors' offices, and in everyday conversation. British newspapers and sports reports routinely describe athletes' weights in stones and pounds.
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
| Stones (st) | Kilotonnes (kt) |
|---|---|
| 1 st | 6.35 × 10-6 kt |
| 2 st | 1.27 × 10-5 kt |
| 5 st | 3.175 × 10-5 kt |
| 10 st | 6.35 × 10-5 kt |
| 25 st | 0.000158757 kt |
| 50 st | 0.000317515 kt |
| 100 st | 0.000635029 kt |