Odds & Expected Value Tutor

Adjust inputs to see how jackpot size, rollover probability, and secondary prizes influence your expected value.

Expected value

-£1.81

Jackpot contribution

£0.14

Secondary contribution

£0.04

House edge

90.68%

Secondary prize tiers

Adjust probabilities and payouts to see how lower tiers influence EV.

Matches: 5

Matches: 4

Matches: 3

EV is an expectation over a long horizon and not financial advice.

Use EV as a learning signal

Expected value is the average outcome over countless plays; it rarely reflects what happens in a single draw. Use this tool to understand how small probabilities and prize splits impact value, not as a go signal to play.