Betting Tools
Odds Probability Calculator
Convert decimal odds into probability instantly and compare bookmaker pricing with your own view of the market.
Probability from odds
50.00%
This tool uses the standard odds-to-probability formula: 1 / decimal odds.
Example: decimal odds of 2.00 imply a 50.00% probability, while 1.50 imply 66.67%.
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Margin Calculator
Calculate bookmaker margin, implied probability, and fair odds in seconds. Useful for two-way markets, 1X2 football pricing, and any custom multi-outcome book.
EV Calculator
Calculate expected value and ROI from decimal odds and your estimated win probability.
CLV Calculator
Compare your bet odds with the closing line to estimate closing line value and see whether you beat the market.
Monte Carlo Simulator
Simulate bankroll trajectories from expected ROI and variance to visualize risk, drawdowns, and outcome dispersion.