Photography by numbers - 30CWT

BCLM, boat dock crane. 30cwt is 30 hundredweight, where a hundredweight is 112 pounds(!), or ??? Kg (I leave it to you to work it out ...). Or, put another way, 30cwt is 1.5 tons ....... Yes, I can do the conversion, but why should I do all the work!
Olympus E-M5, 12-50mm.