You can convert into Bitcoin (BTC) or Bits, the two most popular scales of the moment.
Reminder: 1BTC = 1.000.000 BITS.
You can convert into Euro or Dollar.
(but also Real, Yuan, Pound, Rupee)
It is possible to know the balance of an address by entering it in one of the fields.
Tips : 1GoBTCTiC8TEVoLmrGk4CQFXiVbRr7ktoz