Free betting tools.
Simple calculators for staking, returns and reading odds. Everything runs in your browser — nothing is stored.
01 / 05
Unit calculator
Turn a bankroll and risk profile into clear 1u / 2u / 3u stakes.
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02 / 05
Bet calculator
Return and profit from your stake and decimal odds.
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03 / 05
System & parlay calculator
Up to 6 selections as doubles, trebles, fourfolds and more — with winners-needed analysis.
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04 / 05
Odds converter
Decimal, fractional and American odds plus implied probability.
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05 / 05
EV & ROI calculator
Expected value from your probability, and ROI across settled picks.
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