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Free Betting Tool

Sports Betting Odds Calculator

Enter American odds (e.g., -110 or +200) and your stake to instantly calculate potential profit and total payout. Works for all major Canadian sports.

Quick answer

Negative American odds tell you how much you must risk to win $100; positive odds tell you how much you win on a $100 stake. Use this calculator to convert the line into a payout number, then compare that result with the break-even rate implied by the price.

Break-even
-110 = 52.4%
You need to win more than 52.4% of the time to beat the line.
Underdog
+200 = 33.3%
A lower win rate can still be profitable if the payout is large enough.

Odds Calculator

Interactive Payout Estimator

+/- FORMAT
$
Potential Profit
$90.91
Total Payout
$190.91

Calculations are based on standard American odds formulas. Always verify odds with your sportsbook before placing a wager.

How to Read American Odds

Negative Odds (Favourite)

Negative odds (e.g., -150) represent the favourite. The number indicates how much you must bet to win $100. At -150, you bet $150 to win $100 profit ($250 total payout).

Positive Odds (Underdog)

Positive odds (e.g., +200) represent the underdog. The number indicates how much you win on a $100 bet. At +200, a $100 bet wins $200 profit ($300 total payout).

Even Money (+100)

At +100 (or EVEN), a $100 bet wins $100 profit ($200 total payout). You double your money.

Standard Spread (-110)

-110is the standard price for point spread and totals (over/under) bets in North American sports. You pay $110 to win $100 — the extra $10 is the bookmaker's margin (vig/juice).

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Odds Calculator FAQ

What do American odds mean?+
American odds show either how much you need to risk to win $100 on a favourite, or how much you win on a $100 stake for an underdog. Negative odds are favourites; positive odds are underdogs.
What is break-even probability on odds?+
Break-even probability is the win rate you need to avoid losing money long term. For example, -110 implies about 52.4 percent, while +200 implies 33.3 percent.
How do I calculate payout from odds?+
Enter the odds and stake into the calculator. The tool converts the line into profit and total payout so you can compare price, stake size, and expected return before you place a bet.
Why is -110 so common in sports betting?+
-110 is the standard price for many point spreads and totals in North American markets. It reflects the bookmaker margin, which is also called vig or juice.

Odds Reference Table

OddsExample on $100What it means
-110$90.91 profit / $190.91 payoutCommon spread or total price in North American betting markets.
+100$100 profit / $200 payoutEven money: you double a winning stake.
+200$200 profit / $300 payoutUnderdog price with a larger payout relative to risk.