CORTENFootball statistics
calculators
Work out odds, probabilities and sample uncertainty in your browser. Nothing you type is sent to a server; the results are for learning.
These five calculators convert odds to probability, compute the 1X2 margin, measure odds movement between two observations, derive score probabilities with Poisson and give the Wilson confidence interval of a percentage. Everything is calculated in your browser; the values you enter are not sent to a server.
Poisson score probability
Score grid, 1X2, Over 2.5 and BTTS probabilities from two expected-goals values.
Open tool ↗FREE TOOLOdds ↔ probability converter
Turn decimal odds into implied probability, or a probability into fair odds without margin.
Open tool ↗FREE TOOL1X2 probability and margin
Implied probabilities, their total and the bookmaker margin from three prices.
Open tool ↗FREE TOOLOdds movement
Percentage change and implied probability shift between opening and latest odds.
Open tool ↗FREE TOOLSample interval
The 95% Wilson confidence interval for an observed percentage.
Open tool ↗For the concepts behind them, see the football statistics glossary ↗ and the blog ↗.
Last updated: 28 October 2026 · Responsible: Cortenscore editorial team · Spotted an error? Report a correction.