Choose what you want to calculate.
Start from a category or search for your problem directly.
Odds & Value
Odds, probability, EV, margin and bankroll.
Open →🔁Exchange
Back, Lay, commission and hedging.
Open →📐Asian
Asian handicap and totals.
Open →💰Betting
Singles, multiples and systems.
Open →🛠️Other tools
Dutching, arbitrage and extra tools.
Open →Combo & Cover
Choose what you played. We tell you what to look for and how much to hedge.
Open →🏗️Bet Builder
Choose the combination. We immediately show the counter-bet to look for.
Open →Odds Converter
Do you have odds and want to convert them to another format?
Implied Probability
Want to know what probability an odd represents?
Expected Value
Do you have your own probability estimate and want to see if the odds offer value?
Break-even Odds
Want to know the minimum odds or probability needed to break even?
Overround
Want to see how much margin is built into a market?
Kelly Criterion
Want to calculate a theoretical stake using the Kelly Criterion?
Stake / Bankroll
Want to turn a bankroll percentage into a stake amount?
Profit Target
Want to know how much to stake to reach a specific profit?
Closing Line Value (CLV)
Want to compare the odds you took with the closing odds?
Cashout Value
Have a cashout offer and want to compare it with a simple theoretical value?
Back / Lay
Placed a Back bet and want to know how much to Lay on an exchange?
Lay Liability
Want to know how much money is locked when you place a Lay bet?
Exchange Commission
Want to know how much remains after exchange commission?
Hedging
Want to hedge a position with a second bet on the opposite outcome?
Partial Hedge
Want to hedge only part of your position?
Asian Handicap
Played +0.25, -0.75 or another Asian Handicap and want to know the settlement?
Asian Total Over / Under
Played Over/Under 2.25, 2.75 or similar and want to know the settlement?
Single Bet
Have one bet and want to know the possible return?
Each Way
Have an Each Way bet and want to split Win and Place?
Free Bet
Have a Free Bet and want to understand its real value?
Double
Have 2 selections in the same multiple?
Treble
Have 3 selections in the same multiple?
Accumulator
Have 4 or more selections in one multiple?
Trixie
Have 3 selections and want 3 doubles + 1 treble?
Yankee
Have 4 selections and want an 11-line system with no singles?
Canadian / Super Yankee
Have 5 selections and want a 26-line system with no singles?
Heinz
Have 6 selections and want a 57-line system with no singles?
Super Heinz
Have 7 selections and want a 120-line system?
Goliath
Have 8 selections and want a 247-line system?
Patent
Have 3 selections and want to include singles too?
Lucky 15
Have 4 selections and want every combination including singles?
Lucky 31
Have 5 selections and want every combination including singles?
Lucky 63
Have 6 selections and want every combination including singles?
Single Stakes About
Have 2 selections and want to roll the first return onto the second?
Double Stakes About
Want a Stakes About where the second stake can be up to double?
Round Robin
Have 3 selections and want to combine multiples with Stakes About?
Flag
Have 4 selections and want a Yankee plus Stakes About?
Super Flag
Have 5 selections and want a Canadian plus Stakes About?
Heinz Flag
Have 6 selections and want a Heinz plus Stakes About?
Super Heinz Flag
Have 7 selections and want a Super Heinz plus Stakes About?
Goliath Flag
Have 8 selections and want a Goliath plus Stakes About?
Permed Patent
Have 4 to 6 selections and want a Patent for every group of 3?
Alphabet
Have 6 selections and want to use the Alphabet system?
Union Jack Trebles
Have 9 selections in a grid and want to play the 8 lines as trebles?
Union Jack Trixie
Have 9 selections and want a Trixie on each grid line?
Union Jack Patent
Have 9 selections and want a Patent on each grid line?
Union Jack Round Robin
Have 9 selections and want a Round Robin on each grid line?
Dutching
Want to split one stake across multiple outcomes for a similar return?
Arbitrage
Have different odds and want to check for a mathematical surebet?
Correct Score Dutching
Want to split a stake across multiple correct scores?