CALC 1 Sports Odds Calculator
This calculator converts and calculates sports odds and vig.
This calculator will convert odds, (failures / successes), American moneyline, decimal odds to p (successes / trials).
Note that decimal odds are 1/p.
Reference: Fixed-odds betting - Wikipedia
Keystrokes "= or ENTER": use = in Chain calculation mode, ENTER in RPN calculation mode.
When using Algebraic calculation mode, many of these keys will insert the function.
odds(p) key, the odds (failures to y and successes to x) for the given p.
| Value | Keystrokes | Display | Description |
|---|---|---|---|
| .542 | odds(p) | 45.0 (successes) |
Calculates the odds (failures to y and successes to x) for the given p. |
| SWAP | 38.0 (failures) |
Displays the failures. It is recommended to display 2 lines (as in the screen shot) so you see both values returned. |
The history detail: Calculation of Odds (failures, successes) for the given p. 0.542 : The p value. 38.0 : The number of failures. 45.0 : The number of successes. 99.0 : The maximum denominator.
p(f,s) key, the p for the entered failures and success.
| Value | Keystrokes | Display | Description |
|---|---|---|---|
| 11 | = or ENTER | 11 | Enters the failures value | 13 | p(f,s) | 0.542 | Enters the successes value, then calculates the p for the entered failures and success. |
ml(p) key, the American Moneyline for the p.
| Value | Keystrokes | Display | Description |
|---|---|---|---|
| .6 | ml(p) | -150 | Calculates the American Moneyline for the p. |
p(ml) key, p for the American Moneyline.
| Value | Keystrokes | Display | Description |
|---|---|---|---|
| 225 | p(ml) | 0.308 | Calculates p for the American Moneyline. |
p!vig key, the no vig probability for money lines in x, y. Returns the vig in rgy.
| Value | Keystrokes | Display | Description |
|---|---|---|---|
| -174 | = or ENTER | -174 | Enters the ml1 value | 159 | p!vig | .622 | Enters the ml2 value, then Calculates the no vig probability for money lines in x, y. Returns the vig in rgy. |
The history detail: Calculates the no vig probability for moneyLine1. -174 : Moneyline 1. 159 : Moneyline 2. 2.11 : The Vig. 0.622 : The probability.
Often in sports betting there will be a different moneyline for each team. The p value for each moneyline when added, will add up to > 1. This is the vig. 0.622 is the p for the favored team at -174, which is a breakeven p of 0.635.