House Edge Calculator

The formula is average stake × number of bets × house edge divided by 100. If the average stake is £2, there are 100 bets and the edge is 2.70%, total wagering is £200 and expected cost is £5.40. Replaying a return counts as another stake even if no new deposit is made.

The calculation assumes the quoted edge applies to the bets and rules being modelled. It does not discover a game’s edge, account for every optional side bet or automatically adjust for changing strategy. Check the actual rules and calculation basis before entering a figure.

An average mathematical cost says nothing about a guaranteed session balance. Actual losses can be much greater, including the whole amount risked. Winning sessions are also possible in a negative-expectation game. Both are consistent with a long-run house edge.

For an unchanged edge, increasing stake, speed or number of rounds increases expected total cost. A lower percentage does not make a large volume of play cheap or affordable. Do not increase the planned number of rounds because the calculator produces a small-looking number.

Some table games quote edge per initial ante; others use total money committed. A decision-dependent return may assume a strategy and a specific ruleset. Those percentages cannot be compared accurately unless the stake basis and assumptions are aligned.

Use this tool to learn the relationship between exposure and average cost, not to choose a spending target. Set an optional entertainment limit independently of the output, never use essential money and stop rather than chasing the calculated average. You do not need to place a bet to work through the example.