How streaming payouts actually work
There is no price list. No platform decides that a stream is worth $0.004 and pays that out. The figure everyone quotes as a per-stream rate is the result of a division, calculated after the fact.
Every month a platform collects money from subscriptions and advertising. A share of that money, typically around 70% for the major services, goes into a royalty pool for rights holders. The platform then counts every stream that happened that month and splits the pool by share: an artist responsible for 0.01% of all streams receives 0.01% of the pool. This is the pro-rata model, and almost every large service uses it.
The consequence is that the effective rate moves every month, in both directions, for reasons outside any artist's control. A month where subscriber numbers grow faster than listening pushes the rate up. A month where total listening grows faster than revenue pushes it down. December, with heavy catalogue listening, usually pays less per stream than a quiet month.
That is why any calculator can only give a range. The numbers here use industry-reported bands: Spotify around $0.003 to $0.005, Apple Music roughly double that, YouTube Music considerably lower, Tidal at the top. A midpoint estimate is a reasonable planning figure and a poor prediction of any specific statement.
Reading the output as a range rather than a number is the single most useful habit. If a plan only works at the top of the range, it does not work.