Free Betting Calculator
Your odds. Your stake. Clear potential returns.
Calculate single-bet payouts, free-bet winnings and each-way outcomes.
Betting Calculator
Your bet
Enter a price and stake to see your potential return.
Odds formatExample: +150 or -110. Format changes retain the original price.
Dollar units only; no currency conversion.
- Original stake
- $100.00
- ROI if the bet wins
- 150.00%
- Implied probability
- 40.00%
Payout includes your returned stake. Implied probability describes the price, not a prediction.
Money rounds independently to the nearest cent, with half cents rounded away from zero. Odds displays may be rounded; calculations use the retained exact price.
How to Calculate Betting Winnings
Understand your potential return in four simple steps.
Choose your bet type
Start with a cash single bet, promotional free bet or each-way bet.
Enter the odds
Use American, decimal or fractional odds. Changing formats retains your price.
Set the amount
Enter a cash stake, free bet amount or stake per each-way part.
Read the results
Compare total payout with net profit. Each-way bets show three outcomes.
Betting Odds and Payouts, Explained
What Is a Betting Calculator?
A betting calculator translates a price and stake into hypothetical returns. It helps you distinguish money returned from money earned, and compare the same odds in different formats. This sports betting calculator runs entirely in your browser and needs no account.
Total Payout vs Net Profit
For a winning cash bet, total payout includes the original stake. Net profit is the gain after accounting for that stake. At decimal 2.50, a $100 bet pays $250 in total and earns $150 profit. Multiply stake by decimal odds for payout, or by decimal odds minus one for profit.
Read the betting payout guide →
Understanding American, Decimal and Fractional Odds
American +150 means $150 profit per $100 staked. Negative odds such as −110 mean staking $110 to earn $100 profit. Decimal odds include the returned stake: 2.50 means $2.50 total per $1. Fractional 3/2 means $3 profit per $2. All of +150, 2.50 and 3/2 describe the same price.
What Is a Free Bet?
A free bet is a promotional betting amount subject to offer terms. With the stake-not-returned assumption used here, only winnings become cash. A $100 free bet at +150 pays $150, while a cash bet at the same price pays $250 including the original stake.
Understand free bet winnings →
How Does an Each-Way Bet Work?
An each-way bet places equal amounts on a win and a qualifying place. $10 each way costs $20. The place payout uses a fraction of the win profit odds, commonly 1/4 or 1/5. A place can still leave a net loss when its return is less than the two stakes combined.
What Do ROI and Probability Tell Me?
ROI here is the percentage profit if a single bet wins; it does not include the risk of losing. Implied probability translates the price into a percentage. At +150 it is 40%, but this is not a guaranteed chance or an independent assessment.
Worked Examples
The following examples assume the selection wins. Each-way payout includes both parts.
| Bet type | Odds | Total stake / promotion | Total payout / cash | Net profit |
|---|---|---|---|---|
| Single | +150 | $100 cash | $250.00 | $150.00 |
| Single | −110 | $100 cash | $190.91 | $90.91 |
| Single | 5/2 | $20 cash | $70.00 | $50.00 |
| Free Bet | +150 | $100 promotion | $150.00 cash | Not applicable (promotion) |
| Each-Way | 6/1, 1/4 place | $20 cash | $95.00 | $75.00 |
For the each-way example, a place without a win pays $25 and earns $5 net profit. Losing both parts pays $0 and loses $20.
Frequently Asked Questions
Get comfortable with stakes, payouts and promotional assumptions.
How do I calculate a betting payout?
Convert the odds to decimal and multiply by the stake. At +150 (decimal 2.50), a $100 cash stake pays $250 if successful, including $150 profit.
What is the difference between payout and profit?
Total payout includes the returned cash stake. Net profit is the amount left after subtracting the stake. A $70 payout from a $20 bet means $50 profit.
How much does $100 at −110 pay?
A winning $100 bet at −110 returns about $190.91, including $90.91 profit. The exact decimal odds are 21/11; rounding them to 1.91 before calculating would change the result.
Does a free bet return the promotional stake?
This calculator assumes it does not. A $100 promotional free bet at +150 pays $150 cash, not $250. Check the offer’s restrictions, expiry and settlement rules.
Does $10 each way mean $10 or $20 in total?
It means $20 total: $10 on the win part and $10 on the place part. A win usually pays both parts under the modeled terms.
Can an each-way place still lose money?
Yes. At 4/1 with 1/5 place odds, $10 each way costs $20. A place without a win returns $18, leaving a $2 net loss.
Will switching odds formats change my result?
No. The exact underlying price is retained until you edit the odds field. A displayed conversion may be rounded or marked approximate; it is not repeatedly parsed to calculate returns.
Is implied probability a guarantee?
No. It is 100 divided by decimal odds, reflecting the entered price. Bookmaker margin and other factors mean it is not a verified forecast of the outcome.