The Factors Influencing the Dollar to Rupiah Exchange RateWhen it comes to international trade and global finance, currency exchange rates play a crucial role. In the case of the dollar to rupiah exchange rate, several factors come into play that influences the exchange rate between these two currencies Dolar Berapa Rupiah. Inflation Rate: One of the primary drivers of currency exchange rate fluctuations is the inflation rate. Interest Rates: Interest rates have a direct impact on currency exchange rates. These speculative activities can influence the dollar to rupiah exchange rate on a day-to-day basis.