Follower Growth Calculator - Project Instagram, TikTok, YouTube Growth

Realistic growth rates

Accounts under 10k that post consistently often grow 5 to 15 percent per month. Between 10k and 100k, 3 to 8 percent is typical. Above 100k, 1 to 4 percent. Percent growth compounds, so a steady 8 percent doubles an account in about nine months. Fixed weekly gains (say 150 followers a week) are a better model for accounts where growth comes from a steady source like a newsletter or podcast.

What moves the rate

Posting frequency (3 to 5 Reels or Shorts a week is the current baseline), a clear niche, collaborations with similar-sized accounts and one or two viral posts per quarter. Follower count milestones also unlock monetisation: 1,000 subscribers and 4,000 watch hours on YouTube, 10,000 followers for Instagram's professional features, 10,000 followers and 100,000 views for TikTok's Creator Rewards.

Use the projection to plan, not to predict

Run the calculator with your real last three months, then with the rate you want. The gap between the two tells you how much more you need to post or promote. Revisit monthly.