IB Commission Calculator Use this calculator to estimate trading volumne and the advantages of being IB of FIXIO. Calculator Deposit Amount US$ IB Commission Rate US$ Leverage Forex Pair Metal Pair (Gold) Risk Level Low Medium High Result Trading Volume (Lot) Commission Amount The calculation results are for reference purposes only. Send This calculator assumes that the value of the Forex Pair is 400 and the value of the Metal Pair is 200. These values can change in the future.