You're right, but also stones are mostly used as an approximate unit of bodyweight in casual conversation, so people would usually say "I'm about 10 and a half stone".
If you're dealing with bodyweight where accuracy matters, like in a medical sense, it's metric anyway. Plenty of people here aren't even sure of how many pounds make up a stone, despite regularly using the latter as a measurement.
You're right, but also stones are mostly used as an approximate unit of bodyweight in casual conversation, so people would usually say "I'm about 10 and a half stone".
If you're dealing with bodyweight where accuracy matters, like in a medical sense, it's metric anyway. Plenty of people here aren't even sure of how many pounds make up a stone, despite regularly using the latter as a measurement.