• YouTube creators who are part of the Partner Program can monetize their videos with ads.

• The amount of money different creators make per video varies based on a variety of factors.

• We spoke with dozens of creators who shared how much money they've earned on YouTube.

• See more stories on Insider's business page.

This is the latest installment of Insider's YouTube money logs, where creators break down how much they earn.

Creators on YouTube can earn their money a number of ways, from sponsorships to selling merchandise. But revenue from Google ads is a big chunk of many YouTube stars' incomes.

Social-media creators who are part of the YouTube Partner Program can earn money off their videos with Google-placed ads.

To start earning money directly from YouTube, creators must have at least 1,000 subscribers and 4,000 watch hours in the past year. Once they reach that threshold, they can apply for YouTube's Partner Program, which allows creators to start monetizing their channels through ads, subscriptions, and channel memberships.

Six YouTubers shared their RPM rates, or revenue per mille. The YouTube creators said they earned between $2 and $12 per 1,000 views. This converts to monthly payouts, and YouTubers we spoke with earned between $80 and $55,000 per month from the program.

Those earnings can vary by month for creators. For example, Sarah Lavender, a YouTuber with about 100,000 followers, earned different monthly incomes ranging from about $1,000 in one month last year to over $6,000. (She broke down her exact earnings each month last year.)

Another YouTuber, who has over 1 million subscribers, earned over $50,000 in a single month.

But YouTube creators with far fewer followers can also make decent money. Nano influencer Jen Lauren earned $213 in November, for instance.

When it comes to a viral video, how much money a YouTube creator makes can vary wildly. We spoke with YouTubers who broke down how much they'd made on videos with 1 million views, and their answers ranged from about $3,400 to $40,000, depending on the type of content and viewer demographics.