The conversion of a $50 Amazon gift card to Nigerian Naira depends on the current exchange rate. Exchange rates are constantly fluctuating, which means the amount in Naira can vary from day to day.

To determine how much it is in Naira, one would need to check a reliable financial source or a currency exchange platform. These sources provide the most up-to-date exchange rate. For example, if the exchange rate is 1 dollar equals 410 Naira, then a $50 Amazon gift card would be equivalent to 50 * 410 = 20,500 Naira.
However, it's important to note that different platforms may offer slightly different exchange rates. It's advisable to compare rates to ensure getting the best conversion value. Additionally, factors such as fees associated with the conversion process can also affect the final amount received in Naira. So, when looking to convert a $50 Amazon gift card to Naira, it's crucial to do some research and choose the option that gives the most favorable outcome in terms of both the exchange rate and any applicable fees.