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