Moneyline Calculator: Free Tool to Calculate Payouts & Implied Probability

This is a free moneyline calculator built for US sports betting across the NFL, NBA, MLB, NHL, and more. Enter your stake and American odds to see your potential payout, profit, and implied probability instantly. The calculator works for favorites and underdogs, helping you understand the math behind every moneyline bet before you place it.

Bet with a budget, never with money you cannot afford to lose. For support, see our Problem Gambling Help page.

Use Our Free Moneyline Calculator

The moneyline calculator below helps you:

• Calculate potential payout and profit from any moneyline bet
• See implied probability based on the odds offered
• Compare different stakes and odds scenarios quickly
• Understand the math behind favorites and underdogs

Enter your stake and the American odds (like -150 or +200) to get instant results. The tool shows your total payout, profit, and the implied probability the sportsbook assigns to that outcome.

This tool shows math, not predictions. Always gamble responsibly and only bet what you can afford to lose.

Odds shown are examples unless you input your own. Always check live prices at your sportsbook before placing a bet.

How to Use the Moneyline Calculator (Step-by-Step Guide)

Step 1 – Choose American Odds or Your Preferred Format

The moneyline calculator accepts American odds by default. American odds use plus and minus signs to show favorites and underdogs.

Negative odds (like -200) indicate the favorite. You must risk 200 dollars to win 100 dollars in profit. Your total return would be 300 dollars (your 200 dollar stake plus 100 dollars profit).

Positive odds (like +150) indicate the underdog. A 100 dollar bet wins 150 dollars in profit. Your total return would be 250 dollars (your 100 dollar stake plus 150 dollars profit).

Most US sportsbooks display American odds. If your sportsbook uses decimal or fractional odds, convert them first using an odds converter tool or check if your calculator supports multiple formats.

For more on American odds and how they work, see our Moneyline Betting Guide.

Step 2 – Enter Your Stake

Input the amount you plan to wager. The calculator accepts any stake size, from 1 dollar to thousands.

Example: You enter 50 dollars as your stake and +150 as the odds. The calculator shows:

• Profit: 75 dollars
• Total payout: 125 dollars (your 50 dollar stake plus 75 dollars profit)

Clarify the difference between profit and total return:

• Profit is what you win if the bet hits.
• Total payout (or total return) is your profit plus your original stake.

Always understand which number your sportsbook displays when you place a bet. Most show total payout, but some highlight profit.

Step 3 – Read Your Payout, Profit and Implied Probability

The calculator displays three key outputs:

Payout: Your total return if the bet wins, including your stake.

Profit: How much you win above your stake.

Implied probability: The percentage chance the sportsbook assigns to this outcome based on the odds.

Implied probability helps you understand value. If the sportsbook offers -150 (about 60% implied probability) but you believe the true chance is 65%, you may have found a good bet. If you think the true chance is only 55%, the price is poor.

Formula for implied probability:

For negative odds: Implied probability = absolute value of odds / (absolute value of odds + 100)

Example: -200 odds = 200 / (200 + 100) = 66.67%

For positive odds: Implied probability = 100 / (odds + 100)

Example: +150 odds = 100 / (150 + 100) = 40%

These probabilities include the sportsbook vig (their margin). The true fair probability is usually slightly lower when you remove the vig.

Common Mistakes & Troubleshooting

Mixing up stake units: Always double-check your stake amount. Entering 100 when you meant 10 changes everything.

Confusing profit vs payout: Make sure you know whether the number you see is profit only or total return. Most sportsbooks show total return.

Using odds with vig removed vs sportsbook odds: The calculator uses the odds you input. If you enter no-vig fair odds, the outputs will reflect that. Always use the actual sportsbook odds when calculating your real payout.

Moneyline Betting Basics (For Beginners)

What Is a Moneyline Bet?

A moneyline bet is the simplest type of sports bet. You pick which team or player will win the game outright. No point spreads, no totals, just the winner.

If your pick wins, you win the bet. If they lose, you lose your stake.

Contrast with point spread: The spread adjusts the margin of victory. Moneyline bets do not care about the margin. You only need your team to win.

Contrast with totals: Totals bets wager on the combined score going over or under a number. Moneyline bets focus only on who wins.

Example: Kansas City Chiefs are -180 on the moneyline. Denver Broncos are +155. If you bet Kansas City and they win by any score, you collect. If Denver wins, you lose.

How to Read American Moneyline Odds

American odds show two numbers: one for the favorite (negative) and one for the underdog (positive).

Favorites: Negative odds tell you how much you must risk to win 100 dollars. At -150, you risk 150 dollars to win 100 dollars in profit.

Underdogs: Positive odds tell you how much profit you win from a 100 dollar stake. At +200, a 100 dollar bet wins 200 dollars in profit.

Here is a quick reference table for common moneyline odds and their implied probabilities:

Moneyline	Implied Probability
-300	75.0%
-200	66.7%
-150	60.0%
-110	52.4%
+100	50.0%
+150	40.0%
+200	33.3%
+300	25.0%

For more on implied probability and how to use it in your betting strategy, see our Moneyline Betting Strategy Guide.

Moneyline vs Spread vs Total – When to Use Each

Moneyline: Best when you like a team to win outright but do not want to worry about margin. Good for underdogs and low-scoring sports like baseball.

Point spread: Best when betting heavy favorites or when you want more balanced odds around -110. Spreads level the playing field by adjusting the margin.

Totals (over/under): Best when you have a strong opinion on scoring but no clear pick on the winner. Good for games where you expect high or low scoring.

The moneyline calculator helps you test how risky a price feels compared to the spread or total. For a full comparison, see our Moneyline vs Spread Guide.

Advanced Moneyline Calculator Features & Strategy

Implied Probability and Value Betting

The calculator shows implied probability based on the sportsbook odds. This number reflects the book's pricing, not the true chance of the outcome.

Implied probability is useful for sanity-checking prices. If a team is -150 (60% implied probability) but you believe they have a 70% chance to win, you may have found value. If you think they only have a 55% chance, the price is poor.

Value betting means finding bets where your estimated probability is higher than the implied probability. Over time, betting +EV (positive expected value) opportunities can be profitable. However, variance and losing streaks are normal. No bet is guaranteed.

RG note: Value betting is a long-term strategy. Even good bets lose. Set strict bankroll limits and avoid chasing losses.

Vig, Fair Odds and Expected Value (Optional Advanced Mode)

Vig (short for vigorish) is the sportsbook margin built into odds. When you add up the implied probabilities for both sides of a moneyline, they total more than 100%. That extra percentage is the vig.

Example: A moneyline of -110 / -110 on both sides has implied probabilities of about 52.4% each. Add them together: 52.4% + 52.4% = 104.8%. The extra 4.8% is the vig.

Advanced mode (if supported by your calculator) can accept both sides of a market and estimate fair odds and vig. This helps you understand how much the book is charging and what the no-vig fair price should be.

Fair odds remove the vig and show what the odds would be in a perfectly efficient market. Comparing fair odds to offered odds helps you spot value.

For more on vig and EV, see our vig calculator guide (coming soon).

Spread-to-Moneyline Conversion (for NFL and Other Sports)

Some bettors like to translate point spreads into rough moneyline equivalents. This helps you decide whether to take the moneyline or the spread.

Example: An NFL team is -7 on the spread at -110. What is the equivalent moneyline?

Advanced calculators can estimate this conversion by inputting the spread and the price. The calculator outputs an approximate moneyline that corresponds to the same win probability.

This feature is useful for comparing value between spread and moneyline markets. For a dedicated spread-to-moneyline converter, see our tool page (coming soon).

Simple Moneyline Parlay Mode

Some calculators support multi-leg parlays. You can add multiple moneyline legs and see the combined odds, implied probability, and payout.

Parlays multiply the odds of each leg. A two-leg parlay with both teams at -110 pays about +264 (2.64-to-1). The combined implied probability is lower than each individual leg.

Parlays are exciting but high-variance. All legs must win for the parlay to cash. One loss kills the ticket.

For full parlay strategy and a dedicated parlay calculator, see our Parlay Betting Guide.

Comparing Prices Across Sportsbooks

Line shopping is critical for long-term success. One sportsbook might offer -140 on a team, while another offers -130. That 10-cent difference adds up over time.

Advanced calculators can accept odds from multiple sportsbooks for the same selection. The tool highlights the best price and shows how implied probability changes.

Always compare odds across at least two or three sportsbooks before placing a bet. For live odds comparison, see our sportsbook odds pages (coming soon).

Real Sport-by-Sport Moneyline Examples

These examples use fictional odds for illustration. Users should always check live markets at their sportsbook before betting.

NFL Moneyline Calculator Example

Example: Kansas City Chiefs at -180 vs Las Vegas Raiders at +155.

You want to bet 50 dollars on Kansas City. Enter -180 and 50 into the calculator:

• Profit: 27.78 dollars
• Total payout: 77.78 dollars
• Implied probability: 64.3%

If you believe Kansas City has a 70% chance to win, this bet offers value. If you think they only have a 60% chance, the price is poor.

For NFL-specific moneyline strategy, see our NFL moneyline guide (coming soon).

NBA Moneyline Calculator Example

Example: Boston Celtics at -250 vs Atlanta Hawks at +210.

You want to bet 100 dollars on Atlanta as the underdog. Enter +210 and 100:

• Profit: 210 dollars
• Total payout: 310 dollars
• Implied probability: 32.3%

NBA underdogs can be volatile. Late scratches, back-to-back games, and momentum swings affect outcomes. Always check injury reports before betting.

For NBA moneyline strategy, see our NBA guide (coming soon).

MLB Moneyline Calculator Example

Example: New York Yankees at -140 vs Toronto Blue Jays at +125.

You want to bet 50 dollars on the Yankees. Enter -140 and 50:

• Profit: 35.71 dollars
• Total payout: 85.71 dollars
• Implied probability: 58.3%

In MLB, moneyline betting is the primary market. Starting pitchers drive the odds. If a pitcher is scratched, odds can shift dramatically. Always verify the starting pitcher before betting.

For MLB moneyline strategy and first-five innings (F5) moneylines, see our MLB guide (coming soon).

Other Sports (NHL, UFC, Tennis, Golf)

The moneyline calculator works the same way across all sports. Enter your stake and odds, and get instant results.

NHL: Two-way moneylines or three-way moneylines (including draws in regulation).

UFC: Fighter moneylines for each bout.

Tennis: Player moneylines for match winner.

Golf: Outright winner or head-to-head matchup moneylines.

The math is identical. Only the sport and context change.

Frequently Asked Questions (FAQ)

How do you calculate a moneyline payout?

For negative odds, divide 100 by the absolute value of the odds, then multiply by your stake. For positive odds, divide the odds by 100, then multiply by your stake. Add your stake to get total payout.

What is a good implied probability for a moneyline bet?

There is no single good implied probability. It depends on your assessment of the true chance. If the implied probability is lower than your estimated probability, the bet may offer value.

Can I use this moneyline calculator for parlays?

Yes, if the calculator supports multi-leg parlays. Otherwise, use a dedicated parlay calculator to combine multiple moneyline bets and see the combined payout.

Does the moneyline calculator guarantee profit?

No. The calculator shows math, not predictions. Sports betting involves risk, and no tool can guarantee profit. Variance and losing streaks are normal.

What is the difference between to win and total payout?

To win (or profit) is how much you win above your stake. Total payout is your profit plus your original stake. Most sportsbooks display total payout.

Can I use this tool for live betting odds?

Yes. Enter the live odds you see at your sportsbook and your planned stake. The calculator works the same way for pre-game and live bets.

Is this moneyline calculator free?

Yes. This tool is completely free to use. No account required, no hidden fees.

Is sports betting legal in my state?

Sports betting availability varies by state. Check your state laws and ensure you are using a licensed, regulated sportsbook. For state-by-state legal information, see our legal guide (coming soon).

Responsible Gambling & Legal Information

You must be 21 or older to bet in most states. Some states set the legal age at 18. Always verify your eligibility and state laws before betting.

This calculator is informational. Sports betting involves risk. No tool can guarantee profit or predict outcomes. Bet only what you can afford to lose, and never use betting to solve financial problems.

If betting stops being fun or starts affecting your life negatively, reach out for help. Free, confidential support is available 24/7:

• National Problem Gambling Hotline: 1-800-GAMBLER (1-800-426-2537)
• National Council on Problem Gambling: ncpgambling.org
• For comprehensive resources, visit our Problem Gambling Help page.

Offers and promotions mentioned on this site are only for eligible users in legal states. Always check your sportsbook terms and conditions.