the book Mathematics of Poker shows in one model (multi street static game)
that it is optimal to bet a constant ratio to the pot. They call this "Geometric Betting".
Since it is often not obvious to calculate the corresponding bet values mentally,
I wrote a web application that displays that.

Example :
Pot : 100
Stack : 200
in two streets : 62 then 138
in three streets : 35 then 61 then 104

the url is