Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Betting Odds
American to Decimal Odds Converter
Convert American moneyline odds (e.g. +150 or -110) into decimal odds, fractional odds, and implied probability. Use this when comparing lines across sportsbooks or calculating exact payouts for a bet.
Fill in the required fields to see your result.
Betting Odds
Expected Value Betting Calculator
Calculate the expected monetary value of a bet — and across a series of identical bets — based on your true probability estimate versus the bookmaker's odds. Use it to identify which bets are genuinely profitable long-term.
Fill in the required fields to see your result.
Key differences
| American to Decimal Odds Converter | Expected Value Betting Calculator | |
|---|---|---|
| Category | Betting Odds | Betting Odds |
| Inputs required | 2 | 5 |
| Result | Total Payout ($) | Expected Value ($) |
| What it does | Convert American moneyline odds (e.g. +150 or -110) into decimal odds, fractional odds, and implied probability. Use this when comparing lines across sportsbooks or calculating exact payouts for a bet. | Calculate the expected monetary value of a bet — and across a series of identical bets — based on your true probability estimate versus the bookmaker's odds. Use it to identify which bets are genuinely profitable long-term. |