Calculators

Which calculator do I need?

• Odds converter when you want the same price in another format, or the implied probability behind it.
• Arbitrage when you have prices from more than one place and want to know whether backing every outcome locks in a profit, and how to split the stake.
• Devig when you want the bookmaker's margin removed so you can compare prices against a fair line.
• Commission when an exchange price needs translating into the bookmaker price it really pays.
• EV & Kelly when you have a fair probability and want to know whether a price is worth taking, and how much to stake.
• Polymarket tools when your prices are in cents rather than odds.
• Cashout when a bookmaker offers to settle your bet early and you want the odds that amounts to, what it costs against holding, and what a hedge would lock in.
• Hedge when you already hold a bet and want the stakes on the other side that lock in a profit, break even on an outcome, or hit a target, in 2-way, 3-way and lay markets.
• Casino bonus when a deposit bonus comes with a wagering requirement and you want to know what it is really worth.