Written & tested by
James Carter
iGaming analyst · 9 years reviewing offshore operators
Last Updated: August 14, 2026 · Next review: September 2026
Most gambling calculators multiply two numbers and stop. These model the thing you actually asked about — including the terms that quietly destroy the value, and the range of outcomes rather than the one average that almost never happens.
Calculator
RTP Configuration Cost
The same game, two RTP builds, side by side in pounds. This is the difference operators are not required to show you.
Calculator
Bankroll Survival
Ten thousand sessions, run in your browser, shown as a histogram instead of a single misleading average.
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