What is EV Calculator?
A tool that calculates the expected value of a bet given the odds and your estimated true probability.
Definition
An EV calculator takes three inputs — your stake, the offered decimal odds, and your true win probability — and outputs the expected value of the bet. Formula: EV = (stake × (odds - 1) × win_prob) - (stake × loss_prob). Positive EV = profitable in the long run. Free EV calculators exist on dozens of sites including Fan Bet Odds. Pro tools (OddsJam, RebelBetting) bundle the calculator with auto-pulled live odds and probability estimates.
Example
$100 stake, 2.20 odds, 50% true win probability. EV = ($100 × 1.20 × 0.50) - ($100 × 0.50) = $10. Positive EV — bet it.
Related terms
More from this category: Tools & Software
FAQ
What does "EV Calculator" mean in sports betting?
A tool that calculates the expected value of a bet given the odds and your estimated true probability.
How is "EV Calculator" used at the FIFA World Cup 2026?
EV Calculator applies to every World Cup 2026 match in the same way as any other regulated sports event. Fan Bet Odds tracks the relevant prices and lines across Bet365, Pinnacle, DraftKings, BetMGM and other licensed bookmakers — see the match prediction and odds pages for live application.
Where can I see "EV Calculator" in action on Fan Bet Odds?
EV Calculator appears throughout our match prediction pages (/odds/predictions/match/[slug]), market deep-dives (/odds/predictions/match/[slug]/[market]) and bookmaker reviews (/bet/bookmakers/[slug]). Use the related terms below to navigate the broader glossary.
World Cup 2026 - Daily Odds & Tips
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