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CALCULATORS / Staking calculator

Staking calculator

Work out what to put on. Level staking bets the same each time, percentage staking bets a fixed share of the bankroll, and Kelly scales the stake with the edge. Same inputs, three answers to compare.

Choosing a staking plan

How you stake decides whether variance grows your bankroll or wipes it out. Level staking risks the same amount every bet — simple, transparent and hard to beat. Percentage staking risks a fixed share of your current bankroll, so you automatically bet less in a drawdown and more as the bank grows. Kelly staking scales the stake with your edge, betting bigger when the price is genuinely in your favour.

Most bettors who last stake 1% to 2% of their bankroll per bet, or a fractional Kelly capped at a similar level. The point of staking is not to win faster — it is to make sure a normal losing streak never takes you out before your edge can pay off.

Comparing the three

Enter your bankroll once and the calculator shows the level, percentage and Kelly stake side by side, so you can see how much the price and your edge change the recommended size. Under level staking the price does not matter; under Kelly it very much does.

Frequently asked questions

Level or percentage staking?+
Level is simpler and easier to review. Percentage compounds with the bankroll and cuts stakes automatically in a drawdown.
How big should a stake be?+
Most bettors who last use 1% to 2% of bankroll, or fractional Kelly capped at a similar level.
Does the stake depend on the price?+
Under level staking, no. Under Kelly, yes, because the edge and the price both change the optimal size.
What is a betting unit?+
A unit is your standard stake — usually 1% to 2% of the bankroll — so you can talk about results in units rather than money.

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