Quote from: dream46go on June 11, 2016, 05:54:32 PM

Sorry, I know aprivate key, I need a sevice from private key to bitcoin address...
this way....

So you want to know about which bitcoin address you have the key for.Then in that case you can use any bitcoin wallet to do that.Just head over to import a private key and it will show you bitcoin address.Simple

I don't know which wallet you are using but I can show you how to do it with blockchain.info web wallet:-

1)Head to Import/Export Section and paste the import key and hit the "Add private key"

2) You will get a popup like below showing you the bitcoin address.