How much is 4023 São Tomé and Príncipe Dobra to Swazi Lilangeni? 3.37 Swazi Lilangeni is todays conversion result. International currency exchange rate for pair STD to SZL for today is 0.0008. CNV.to is using the latest data from authority sources, data updates every minute. To calculate reversed currencies go to - 4023 SZL to STD.