How much is 674 São Tomé and Príncipe Dobra to Cambodian Riel? 122.67 Cambodian Riel is todays conversion result. International currency exchange rate for pair STD to KHR for today is 0.1820. CNV.to is using the latest data from authority sources, data updates every minute. To calculate reversed currencies go to - 674 KHR to STD.