ML in a small tcby? medium?

I want to get a tcby swirl yogurt cup in either a small or a medium but when I go on the website there's all this sugar free or 96 percent fat free yogurt and all this stuff, I always just say "can I get a swirl yogurt cup" when I order, so I want to know how many calories that would be and on the website it also says calories per 125mL and I want to know how many mL is actually in a small and medium yogurt cup, so if anyone knows the answers to any of these questions please tell me ! Thanks :)