PuntersEdge Tools
Implied Probability Calculator Australia
Convert decimal odds to the bookmaker's implied probability. Optionally enter your own estimate to see the difference — a positive gap is potential edge.
Results will appear here.
What is implied probability?
The implied probability is the win probability built into a set of decimal odds. It is calculated as:
Implied Probability = 100 ÷ Decimal Odds
Bookmakers add a margin (overround) so the implied probabilities across all outcomes sum to more than 100%. This means their odds are always slightly worse than true fair odds.
- At 2.00 (evens), implied probability is 50%.
- At 1.50, implied probability is 66.7%.
- At 3.00, implied probability is 33.3%.
If your estimated probability is higher than the implied probability, the bet has positive EV. Use the EV Calculator to quantify it.
18+ only. This calculator is for informational purposes only. Gambling can be addictive. Gambling Help: 1800 858 858.