Free betting calculators

Quick answers for the math behind every bet, plus real data from FakeBet players. No signup, nothing to install, and they work on your phone.

Parlay calculator

Payout, profit, combined odds and the real chance every leg hits, for up to 12 legs.

American, decimal and fractional odds and implied chance, converted the moment you type.

The chance a price implies, the bookmaker’s margin and fair no-vig odds for 2-way and 3-way markets.

Every parlay combination, the total stake, the best case and what you make if some picks lose.

Real hit rates from FakeBet parlays by number of legs, next to what their odds said should happen. Updated daily.

What FakeBet players are backing right now, the busiest games and the crowd's real record. Updated every 30 minutes.

What -110, +150 and other common prices mean, what they pay and how often bets at each price really win.

How sports betting simulators work, what to look for in one, and how to practice on real odds for free.