How to Calculate Your Potential Winnings from Any Odds Format
You don't need a calculator every time you want to know how much you'll win. Understanding the formulas takes five minutes and gives you this skill permanently.
This guide walks through calculating winnings from fractional odds, decimal odds, accumulators, each-way bets, and clarifies profit versus total return. Plus a reference table of common stakes and odds.
Decimal Odds: The Simple Formula
Decimal odds are the easiest to calculate with. The formula is straightforward.
Total return = Stake × Odds
Profit = Total return - Stake
Let's work through examples.
Example 1: £10 at 2.50 odds
Total return = £10 × 2.50 = £25 Profit = £25 - £10 = £15
You get £25 back. Your profit is £15.
Example 2: £20 at 1.80 odds
Total return = £20 × 1.80 = £36 Profit = £36 - £20 = £16
You get £36 back. Your profit is £16.
Example 3: £5 at 4.00 odds
Total return = £5 × 4.00 = £20 Profit = £20 - £5 = £15
You get £20 back. Your profit is £15.
That's it. Decimal odds are literally just stake times the odds number.
Fractional Odds: Slightly More Complex
Fractional odds require one extra step, but it's still simple.
Profit = Stake × (Numerator / Denominator)
Total return = Profit + Stake
Remember, the numerator is the top number and the denominator is the bottom. For 5/2 odds, 5 is the numerator and 2 is the denominator.
Example 1: £10 at 5/2 odds
Profit = £10 × (5 / 2) = £10 × 2.5 = £25 Total return = £25 + £10 = £35
You get £35 back. Your profit is £25.
Notice that 5/2 in fractional odds equals 3.50 in decimal odds (because 5/2 = 2.5, then add 1). Let's check: £10 × 3.50 = £35. Correct.
Example 2: £20 at 3/5 odds
Profit = £20 × (3 / 5) = £20 × 0.6 = £12 Total return = £12 + £20 = £32
You get £32 back. Your profit is £12.
Example 3: £15 at 7/4 odds
Profit = £15 × (7 / 4) = £15 × 1.75 = £26.25 Total return = £26.25 + £15 = £41.25
You get £41.25 back. Your profit is £26.25.
Common fractional odds and their decimal equivalents:
- 1/10 = 1.10
- 1/5 = 1.20
- 1/4 = 1.25
- 1/3 = 1.33
- 2/5 = 1.40
- 1/2 = 1.50
- 3/5 = 1.60
- 4/5 = 1.80
- 1/1 (evens) = 2.00
- 6/5 = 2.20
- 5/4 = 2.25
- 2/1 = 3.00
- 5/2 = 3.50
- 3/1 = 4.00
- 4/1 = 5.00
- 10/1 = 11.00
Profit vs Total Return: Which Do You Report?
This causes confusion.
When someone asks "What did you win?" they usually mean profit. When you ask your bookmaker "How much will I get back?" they show total return.
Profit = The amount you gain above your stake. If you stake £10 and get £35 back, your profit is £25.
Total return = Your stake plus profit. If you stake £10 and get £35 back, your total return is £35.
In betting, always be clear which you mean. Bookmakers usually display total return (what you'll get back), but conversations about "winnings" often mean profit.
When tracking your betting performance, use profit. It's what actually matters for your overall betting account. A £10 stake at 3.50 odds that wins £25 is the same profit as a £5 stake at 6.00 odds that wins £25. The odds and stake don't matter, just the profit.
Accumulator Betting Returns
Accumulators combine multiple bets into one, with odds multiplying together.
Combined odds = Odds 1 × Odds 2 × Odds 3 (etc)
Total return = Stake × Combined odds
Profit = Total return - Stake
Let's say you have three selections:
- Selection 1: 2.00 odds
- Selection 2: 1.50 odds
- Selection 3: 2.50 odds
Combined odds = 2.00 × 1.50 × 2.50 = 7.50
If you stake £10:
Total return = £10 × 7.50 = £75 Profit = £75 - £10 = £65
You get £75 back and profit £65.
All three selections must win for the bet to win. If even one loses, the entire accumulator loses and your stake is forfeited.
Why this matters: The odds multiply, which is why accumulators are attractive. But the difficulty multiplies too. Three 50% probability outcomes combined have only 12.5% combined probability (0.5 × 0.5 × 0.5 = 0.125).
Common Stakes and Returns Table
Here's a quick reference table. Stake £10 at various common odds.
Decimal Odds
| Odds | Return | Profit |
|---|---|---|
| 1.50 | £15 | £5 |
| 1.80 | £18 | £8 |
| 2.00 | £20 | £10 |
| 2.50 | £25 | £15 |
| 3.00 | £30 | £20 |
| 4.00 | £40 | £30 |
| 5.00 | £50 | £40 |
| 10.0 | £100 | £90 |
Fractional Odds
| Odds | Return | Profit |
|---|---|---|
| 1/2 | £15 | £5 |
| 4/5 | £18 | £8 |
| 1/1 | £20 | £10 |
| 5/2 | £25 | £15 |
| 2/1 | £30 | £20 |
| 3/1 | £40 | £30 |
| 4/1 | £50 | £40 |
| 9/1 | £100 | £90 |
If you're staking a different amount, multiply the profit and return by the ratio. For example, a £20 stake at 2.00 odds would be double the £10 stake: return £40, profit £20.
Each-Way Bets: Calculating Both Parts
An each-way bet is two bets: one for a win and one for a place (top positions, usually top 2 or top 3 depending on the market).
Total stake = Win stake + Place stake
You specify a stake "each way," which means that amount for the win part and that amount for the place part. So "£5 each way" is actually a £10 total stake (£5 on the win, £5 on the place).
Example: £5 each way on a horse at 8.0 odds (win), with place odds calculated at 1/4 of win odds.
Win bet: £5 at 8.0 odds Return if wins: £5 × 8.0 = £40 Profit: £40 - £5 = £35
Place odds: 8.0 / 4 = 2.0 Place bet: £5 at 2.0 odds Return if places: £5 × 2.0 = £10 Profit: £10 - £5 = £5
If the selection wins, you get both the win and place profit: £35 + £5 = £40 profit from a £10 stake.
If it places but doesn't win, you get only the place profit: £5 profit from a £10 stake.
If it finishes out of the places, you lose both £5 stakes and lose £10.
In football, each-way is less common than horse racing, but it appears in some markets. The principle is the same: you're placing two separate bets, so calculate each independently and add them together.
Correct Score Bets and Decimal Odds
Correct score betting asks for the exact final score. Odds vary wildly based on how likely the score is.
2-1 result might be 4.0 odds (common). 0-0 might be 8.0 odds (less common). 4-3 might be 50.0 odds (rare).
Calculate returns exactly as normal:
£10 at 4.0 odds = £40 return, £30 profit £10 at 8.0 odds = £80 return, £70 profit £10 at 50.0 odds = £500 return, £490 profit
The calculation never changes, just the odds vary.
Handicap Betting and Odds Calculations
Handicap betting gives one team a head start (or the other team a deficit) to level the odds.
For example, "Team A minus 1.5 goals at 1.90 odds" means you're betting on Team A to win by at least two goals. The handicap is already reflected in the odds price.
Calculate returns normally:
£10 at 1.90 odds = £19 return, £9 profit
The handicap doesn't change the calculation. It changes the outcome condition (win by specific margin), but once you understand the condition, calculate as normal.
Calculating Returns Across Multiple Bets
If you place several individual bets (not an accumulator), calculate each independently, then sum the profits or losses.
Three individual bets:
- Bet 1: £10 at 2.50 odds. Win. Profit: £15
- Bet 2: £10 at 1.80 odds. Lose. Profit: -£10
- Bet 3: £10 at 3.00 odds. Win. Profit: £20
Total profit: £15 - £10 + £20 = £25
This is different from an accumulator. In singles, each bet stands independently. A loss on one doesn't affect the others.
Tax on Betting Winnings: UK Rules
In the UK, betting winnings are not subject to income tax for the bettor. This is a significant advantage.
The bookmaker pays tax on their profits, not you. Your winnings are tax-free.
This applies whether you place one bet or 1,000 bets. Whether you win £10 or £10,000, there's no tax to pay.
However, if you're running a betting operation as a business (not just placing bets, but trading odds or operating as a professional gambling business), different tax rules apply. But for standard recreational betting, winnings are untaxed.
Some other countries tax betting winnings. The UK does not. This is why many European bettors find UK betting attractive.
Using Betting Calculators
You can use online betting calculators for complex accumulators or each-way bets. But learning the formulas means you're never dependent on them.
Most bookmakers provide a calculator on their site. Some are built into the bet slip, which automatically calculates returns as you enter selections and odds.
Use these tools as verification, not as a crutch. If you don't understand the maths, you don't really understand your bets.
Common Mistakes in Calculating Returns
Mistake 1: Forgetting to deduct your stake
Many people calculate £10 × 2.50 = £25 and think they've won £25. They've actually won £15 profit (or £25 total return including their stake). This is why clarifying profit vs return matters.
Mistake 2: Using decimal odds when you mean fractional
A 5/2 odds is 3.50 decimal, not 5/2 = 2.5 decimal. The "+1" is crucial. If you use 2.5 instead of 3.50, your calculation will be wrong.
Mistake 3: Multiplying wrong odds in accumulators
If you have three bets at 1.50, 2.00, and 1.80 odds, the combined odds is 1.50 × 2.00 × 1.80 = 5.40. Some people accidentally add them (1.50 + 2.00 + 1.80 = 5.30) or divide them. Accumulators multiply, always.
Mistake 4: Assuming all bets are equal in compound effect
A £10 accumulator of three bets is not the same as three £10 singles. The accumulator pays much more if all three win, but loses everything if any one loses. Three singles mean you can win on some and lose on others.
Mistake 5: Not accounting for each-way structure
An each-way bet at "£5 each way" is a £10 total stake. Many people forget this and think they've staked £5. Always clarify the total stake when looking at each-way bets.
In Summary
- Decimal odds: Total return = Stake × Odds.
- Profit = Return - Stake.
- Fractional odds: Profit = Stake × (Numerator / Denominator).
- Total return = Profit + Stake.
- Accumulators: Multiply all odds together, then calculate as normal.
- Each-way: Calculate win and place parts separately, add together.
- Profit is what you gain.
- Total return is profit plus stake.
- When discussing performance, use profit.
- In the UK, all betting winnings are tax-free for recreational bettors.
- Learning these formulas takes minutes but saves you confusion forever.
- You'll never wonder whether your bet wins more or less than you expected.
Frequently Asked Questions
If I stake £50 at 1.50 odds, how much is my profit?
Total return = £50 × 1.50 = £75. Profit = £75 - £50 = £25. You profit £25.
What's the difference between 5/2 odds and 2.5 odds?
5/2 fractional odds equals 3.50 decimal odds, not 2.5. The "+1" is crucial in converting fractional to decimal. 2.5 decimal odds equals 3/2 fractional.
If my accumulator has 4 bets at 1.5, 2.0, 2.5, and 1.8, what are the combined odds?
1.5 × 2.0 × 2.5 × 1.8 = 13.5. So a £10 stake at combined odds of 13.5 returns £135 (profit £125).
How much do I need to win to cover a £50 loss from my previous bets?
You need to win £50 in profit. The stake size depends on the odds available. At 2.0 odds, you'd stake £50 to profit £50. At 3.0 odds, you'd stake £25 to profit £50 (approximately).
Do I pay tax on betting winnings if they're very large?
No. In the UK, betting winnings of any size are not taxed for the bettor. This applies whether you win £100 or £100,000.
If I place a £20 each-way bet and it wins, do I get both the win and place return?
Yes. An each-way bet is two bets. If the selection wins, both the win part and the place part win, so you get both returns.
Can I calculate in-play (live) returns the same way?
Yes. The odds change during the match, but the calculation never changes. Stake × Odds = Return. If you place an in-play bet at 2.5 odds with a £10 stake, you get the same £25 return if it wins.