Like people have said you need to try different pairs on as different makes size differently, i've had size 8.5 up to 10s depending on model. rock and run have a good page that lets you convert your normal shoe size to the right climbing shoe depending on the make/model here: http://info.rockrun.com/articles/rock-shoe-sizing-guide.html
that said go to a climbing wall and hire shoes for the 1st few times and if you get the bug get some shoes then.
The people at the Rock On shop at Mile End wall are really helpful - not a massive range but enough (UrbanRock at the Castle has more models) but the guys are super helpful and you can stand on some holds to test
Like people have said you need to try different pairs on as different makes size differently, i've had size 8.5 up to 10s depending on model. rock and run have a good page that lets you convert your normal shoe size to the right climbing shoe depending on the make/model here: http://info.rockrun.com/articles/rock-shoe-sizing-guide.html
that said go to a climbing wall and hire shoes for the 1st few times and if you get the bug get some shoes then.
The people at the Rock On shop at Mile End wall are really helpful - not a massive range but enough (UrbanRock at the Castle has more models) but the guys are super helpful and you can stand on some holds to test