The conversion of a 150 dollars 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 for the most up-to-date exchange rate. For example, if the exchange rate is 1 dollar = 410 Naira, then a 150 dollars gift card would be equivalent to 150 * 410 = 61500 Naira.
However, it's important to note that when conducting any currency conversions, it's advisable to use official and regulated channels to ensure a fair and accurate exchange. This helps to avoid any potential discrepancies or losses that could occur with unregulated or unreliable exchange methods.