Why does the app say there's only 12lbs in a stone?

[carlaxserps]

I've lost 3lbs I've gone from 14 stone to 13.11 Stone but why on the fitbit app when I input the data does it say I've only lost 1lb? Last time I checked there was 14lbs in a stone not 12lbs?

[USAF-Larry]

Not sure, @carlaxserps, but if you went from 14 Stone to 13.11 Stone, you lost .89 Stone, or 12.46 pounds, not 3 pounds, haven't you?  But then, when I was stationed in England many years ago, I could never figure out how much I weighed when it said I weighed 11 Stone 3.... 

[carlaxserps]

11 stone 3 would mean you're 11 stone 3 pounds! I think it might just be a US-English unit confusion