This is a difficult question to answer because it depends on a variety of factors, such as your location, audience, and the type of content you produce. However, generally speaking, you will need at least 1000 subscribers and 4000 watch hours over the past 12 months to be eligible to join the YouTube Partner Program and earn money from ads. Additionally, you can also explore other ways to monetize your channel, such as through sponsorships or merch sales.