Verified answer

I think its on your Combat screen (little tab thing in top right)

its the one where you change the style how you attack

To check your level there will be an icon with 2 crossing swords.

You can change your fighting style there and above that there will be your combat level.

Cick on the crossing swords there you will see;

Combat lvl: 3(Example)

not to be mean or anything but why do u still play runescape. there are so many other browser based games that are free that are way better than runescape. check this site http://www.onrpg.com/ then go to the browser based games on the left of the screen and check it out