There is no set number of followers that will guarantee earnings on Instagram. The amount of money an Instagram account can earn depends on a variety of factors, such as engagement rates, niche, demographics, and the level of influence an account has over its audience.
Typically, accounts with a larger following are more likely to attract brand sponsorships and partnerships, which can lead to earnings. However, even accounts with smaller followings can earn money through sponsored posts, affiliate marketing, or by selling their own products or services.
It's important to note that building a successful Instagram account and earning money from it takes time and effort, and there is no guarantee of success. It's important to focus on creating quality content, engaging with your audience, and building a strong personal brand to increase your chances of earning on Instagram.