RTP to House Edge Calculator

Hamza Gujjar Reviewed by Hamza Gujjar, Algorithm Architect & Software Developer Last updated: July 27, 2026

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Two numbers describing the exact same game math

RTP and house edge describe identical underlying game mathematics from opposite directions - RTP states what fraction of wagered money returns to players over the long run, while house edge states the casino's corresponding advantage.

Worked example

For a slot machine with 96.5% RTP:

House Edge = 100 - 96.5 = 3.5%

These two figures always add up to exactly 100% - a game advertised as "96.5% RTP" and one advertised as "3.5% house edge" are describing precisely the same statistical reality, just phrased from the player's perspective versus the casino's.