Tools & Calculators
Free calculators for betting and casino decisions — convert odds, size your stakes, price RTP and more.
Betting
Odds Converter
Convert odds between decimal, fractional and American formats instantly.
Margin Calculator
Find a bookmaker's margin (overround) and see the fair odds without it.
Kelly Calculator
Work out your optimal stake size with the Kelly criterion.
Acca Calculator
Calculate combined odds, payout and profit for your accumulator bet.
Hedge Calculator
Work out how much to hedge to lock in your profit.
Each-Way Calculator
Work out the win and place returns on an each-way bet.
Bankroll Simulator
Work out your expected bankroll, standard deviation and risk of ruin.
Arbitrage Calculator
Find guaranteed profits across bookmakers and work out the stake split.
Value Bet Calculator
Work out EV, edge and break-even probability from your own probability estimate.
Map Handicap Calculator
Calculate fair odds for map handicaps in BO3/BO5 series.
Series Price Calculator
Calculate fair series odds and compare against a bookmaker's price.
AI Tip Checker and Record Auditor
Check an AI or tipster probability against the bookmaker's price, and audit a claimed record against normal variance.
Casino
All calculations are for guidance only and do not guarantee any result. Always check the operator's own terms before you play, and gamble responsibly.
