How much is 3639 Bhutanese Ngultrum to New Belarusian Ruble? 142.59 New Belarusian Ruble is todays conversion result. International currency exchange rate for pair BTN to BYN for today is 0.0392. CNV.to is using the latest data from authority sources, data updates every minute. To calculate reversed currencies go to - 3639 BYN to BTN.