Booze - syn values

I all, I was wondering if anyone can tell me how many syns are in single measures of vodka or gin? I'm going to a party tomorrow, I know I will go over 15 syns (I've been saving a few throughout the week) but I want to limit the damage as much as possible! Is there anything better than vodka or gin?

Thanks guys xx

2.5 syns

Thanks guys, much appreciated! I am sure to go over 15 syns seeing as it's a party but I will be able to make up for it I'm sure thank you xx