Tumbl;e dryers - howmuch do they cost to run?

[Holymoly321]

Say for a typical 1 hour 20 min cycle?

My clothes dry in 60 mins, sometimes70. Can't really say how much it costs to run but it makes my elec meter whizz round! .
However, i wouldn't be without mine and only use it for bedding, towels and underwear. My elec bills aren't huge.