Percent
The theoretical return to the player.
%
Range: 50 to 100Interactive tool · calculate before depositing
House edge calculator
House edge calculator for players in Estonia — free, anonymous and with an instant result. Enter your data and see in numbers what a bonus or game really means: bonus value, wagering requirement, bet contribution, RTP or expected outcome. Make your decision by the numbers, not the promises — nothing is stored.
Adjust assumptions
Adjust the values below and the results snapshot updates instantly.
Session details
Set the bet volume and RTP assumptions for this calculation.
Play assumptions
Set your typical playing behaviour.
Money
Average bet per round.
EUR
Range: 0.1 to 1000Integer
How many rounds or bets are planned.
Range: 1 to 500000
Integer
Expected pace for time planning.
Range: 1 to 2000
All calculations are estimates and based on the data entered.
House edge calculator: how much the house makes
The house edge calculator converts a game’s RTP into the operator’s edge and shows what it means at your actual bet volume. The house edge is a mathematical guarantee that over long play the casino keeps a certain percentage of every bet on average.
How the house edge is calculated
Formulas
House edge = 100% − RTP
Theoretical session loss = total wagered × house edge
Example: a short slot session
1000 spins at a €1 bet on a game with 96% RTP.
- Session1000 spins × €1
- Total wagered1000 × €1 = €1,000
- House edge (96% RTP)4%
- Theoretical loss€1,000 × 4% = €40
- Loss per €100 wagered€4
Why volume matters more than a single bet
A single spin is unpredictable, but the more rounds you play, the more surely the result moves towards the house edge. A faster pace and a bigger bet mean more turnover and therefore a bigger theoretical loss per unit of time.
Tips
- Lower-house-edge games (high RTP) keep your bankroll going longer.
- Remember that bonus wagering increases turnover and therefore the theoretical loss.
- Also see the RTP calculator and the bankroll planner.
Frequently asked questions
What is the house edge?
The house edge is the percentage a casino keeps on average from each bet over long play. It’s 100% minus the game’s RTP.
Is a lower house edge better?
Yes, from the player’s perspective. A lower edge (higher RTP) means a smaller theoretical loss at the same turnover and longer play time.
How does the house edge affect my session?
Multiply your total wagered by the house edge. €1,000 of turnover at a 4% edge gives a theoretical loss of €40, whether you play fast or slow.