Convert between decimal, fractional and American odds formats.
All three formats express the same information. Decimal odds include the stake in the return, which is why the implied probability is simply the reciprocal. The implied probability is also the break-even win rate, which is the number that determines whether a bet has value.
Odds Conversion
Implied probability = 1 ÷ decimal odds; American odds derive from the same figure
These figures are estimates based on population-average formulas and are intended for training and recreational planning only. They are not medical advice. Consult a qualified health professional before starting or changing an exercise programme, particularly if you have an existing medical condition.
Implied probability = 1 ÷ decimal odds; American odds derive from the same figure All three formats express the same information. Decimal odds include the stake in the return, which is why the implied probability is simply the reciprocal.
The implied probability is also the break-even win rate, which is the number that determines whether a bet has value.
This calculator takes 1 input: Decimal odds. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.