I've been told that it's easy to damage my ears by listening too loud on headphones, but however loud I listen (within limits), I find my ears get used to it after a short time.

It was recommended to me not to listen so loud that outside sounds are completely inaudible, but this isn't so useful if I'm in a quiet environment anyway or if I'm using phones that block a lot of sound.

Is there any way to easily work out the levels I'm subjecting myself to?

I've been told that it's easy to damage my ears by listening too loud on headphones, but however loud I listen (within limits), I find my ears get used to it after a short time.

It was recommended to me not to listen so loud that outside sounds are completely inaudible, but this isn't so useful if I'm in a quiet environment anyway or if I'm using headphones or earphones that block a lot of sound.

Is there any way to easily work out the levels I'm subjecting myself to?