This USD To STD Exchange Rate Chart lets you see this pair's currency rate history for up to 90 days
Live forex chart for US Dollar to Sao Tomean Dobra
The above chart show the exchange rate of 1 USD to STD. If the chart run up, it means US Dollar appreciates against Sao Tomean Dobra. If the chart run down, it means US Dollar devalues against Sao Tomean Dobra.