Sports utilities
Sports calculators & converters
Convert odds, review implied probabilities and market margin, calculate staking scenarios and ROI, and convert match times between time zones.
Odds Converter
Convert decimal, American and fractional odds into equivalent formats and see the associated implied probability.
Implied Probability Calculator
Translate entered odds into the probability implied by that price before any market normalization.
Bet Payout / Profit Calculator
Calculate theoretical gross payout and net profit from a stake and entered odds.
Accumulator / Parlay Calculator
Combine 2–12 decimal prices, then calculate combined odds, implied probability, gross payout and net profit.
Arbitrage Calculator
Measure whether entered decimal prices sum to an implied probability below 100% and calculate equal-return allocations.
Bookmaker Margin / Vig Calculator
Calculate the market overround from 2–12 decimal prices and normalize each raw implied probability to 100%.
Kelly Criterion Calculator
Apply the Kelly formula to decimal odds, bankroll and your own estimated win probability, with full, half and quarter Kelly amounts.
Dutching Calculator
Split a total amount across 2–12 decimal prices so each listed outcome produces the same mathematical gross return.
ROI Calculator
Calculate return on investment from an amount staked and a positive or negative net result.
Match Time / Timezone Converter
Convert a match date and local time between time zones, including daylight-saving changes.