The conversion of a $300 Amazon gift card to Nigerian Naira depends on the current exchange rate. Exchange rates are constantly fluctuating due to various economic factors such as inflation, interest rates, and market demand.

To determine the exact amount in Naira, one would need to check a reliable financial source or a currency exchange platform. As of a specific moment, if the exchange rate is, for example, 1 dollar equals 410 Naira, then a $300 gift card would be equivalent to 300 multiplied by 410, which is 123,*** Naira.

However, it's important to note that these rates can change quickly. So, it's advisable to stay updated on the latest exchange rates to get the most accurate conversion when trying to figure out how much a $300 Amazon gift card is worth in Naira at any given time.