The exchange rate between the US dollar and the Nigerian naira is constantly fluctuating. To determine how much 500 USD Amazon gift card is worth in naira today, one needs to check the current market exchange rate.

Exchange rates are influenced by various factors such as economic conditions, political stability, and market demand. Financial institutions and currency exchange platforms provide the most accurate and up-to-date exchange rates. By referring to these sources, one can find out the specific amount in naira equivalent to 500 USD.

It's important to note that the conversion amount will change from day to day. So, if you're looking to convert your 500 USD Amazon gift card to naira, make sure to get the latest exchange rate to ensure you receive the appropriate value in Nigerian currency.