How do I update budget FX rates? How do I change my budget exchange rates? How do I provide my own FX rate for my budgets?
To set fixed rates for converting your budgets between currencies, go to Load Data (top bar),>Budget FX Rates (left sidebar).
To see currency exchange rates for actuals, use the table in the top right corner of the Reports tab, as discussed in FX Rates: What foreign exchange rate is being used?