How much is 4518 CFA Franc BEAC to Bhutanese Ngultrum? 617.21 Bhutanese Ngultrum is todays conversion result. International currency exchange rate for pair XAF to BTN for today is 0.1366. CNV.to is using the latest data from authority sources, data updates every minute. To calculate reversed currencies go to - 4518 BTN to XAF.