The conversion of a $10 Amazon 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. These platforms provide the most up-to-date exchange rates. For example, if the exchange rate is 1 USD = 410 Naira, then a $10 Amazon card would be equivalent to 10 * 410 = 4100 Naira.

However, it's important to note that different exchange rate providers may offer slightly different rates. Additionally, when making transactions involving currency conversions, there may be additional fees or charges associated with the conversion process. So, it's advisable to compare rates and fees from multiple sources to get the best deal when converting a $10 Amazon card to Naira.