I would say I went from a 18 to 10. Saying 4 sizes is impossible for most people to picture. It just means you lost a lot of weight.

4

I would say 4. Because you dropped 4 sizes. You started at 18, went to a 16, then 14, then 12, now 10. Which is 4 sizes.

*It would be 4.

Since the typical sizes are even numbers only, then no, that wouldn't be 8 sizes. I would be 4.

Let's say you lost weight, and go from a size 18 to a size 10. Would you say you dropped 8 or 4 sizes?

8 sounds nicer, but women's sizes are measured in even numbers. What would you say?