I wanted to send 0.00013 Bitcoin and block.io wants to take therefore 0.002 Bitcoins for network fee. So I cant grab my bitcoins from block.io
How many inputs did you want to use to create the transaction with a value of 0.00013
BTC ?
The formula to estimate the fee => (in*147 + out*34 + 10 plus or minus 'in') * 220.
The 220 satoshi's per byte can be found on
https://bitcoinfees.21.co/IN your case, the number of inputs could be calculated as => ((in) * 147 + 1 * 34 + 10 + (in)) * 220 =~ 200000
So, if the transaction had 5 inputs and one output, the fee is more or less what i'd expect it to be...
(5*147+34+10+5) * 220 = 172480 satoshi's...