this is tool online for free check it out
http://www.btcsatoshi.com/
Predefined Values:
Satoshi= 0.00000001 ฿
10 Satoshi= 0.00000010 ฿
100 Satoshi= 0.00000100 ฿
= 1 Bit / μBTC (you-bit)1,000 Satoshi= 0.00001000 ฿
10,000 Satoshi= 0.00010000 ฿
100,000 Satoshi= 0.00100000 ฿
= 1 mBTC (em-bit)1,000,000 Satoshi= 0.01000000 ฿
= 1 cBTC (bitcent)10,000,000 Satoshi= 0.10000000 ฿
100,000,000 Satoshi= 1.00000000 ฿