This calculator converts and calculates sports odds and vig.
This calculator requires version 4.16 for the odds(p) key.
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.
Value | Keystrokes | Display | Description |
---|---|---|---|
.542 | odds(p) | 13 (successes) |
Calculates the odds (failures to y and successes to x) for the given p. |
SWAP | 11 (failures) |
Displays the failures. It is recommended to display 2 lines (as in the screen shot) so you see both values returned. |
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. |
Value | Keystrokes | Display | Description |
---|---|---|---|
.6 | ml(p) | -150 | Calculates the American Moneyline for the p. |
Value | Keystrokes | Display | Description |
---|---|---|---|
225 | p(ml) | 0.308 | Calculates p for the American Moneyline. |
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.