Use the British Racecourses free bet calculator to work out the total stake, return and profit from your bets.
Our calculator supports common horse racing bets including singles, doubles, trebles, accumulators, Trixies, Patents, Yankees, Lucky 15s, Lucky 31s, Lucky 63s, Heinz bets and more complex permutations.
You can enter fractional or decimal odds, calculate win or each-way bets and account for factors such as Rule 4 deductions, dead heats, non-runners and placed selections.
Use the Free Bet Calculator
How to Use the British Racecourses Bet Calculator
The master calculator can calculate straightforward singles as well as bets containing several selections.
To calculate your return:
- Select the bet type.
- Choose whether you placed a win or each-way bet.
- Enter the number of selections where required.
- Choose your preferred odds format, such as fractional or decimal.
- Enter the outcome of each selection: winner, placed, lost, void, non-runner or dead heat where applicable.
- Enter the odds for each selection.
- Add any applicable Rule 4 deduction.
- Enter your stake as either the stake per bet or total combined stake, depending on the wager.
- Check the calculated total outlay, total return and profit.
More complicated bets contain several individual wagers, so the total stake can be substantially higher than the unit stake entered.
What Does a Bet Calculator Work Out?
A betting calculator removes the need to calculate returns manually.
The three figures to understand are:
Total outlay: the complete amount staked across the bet.
Total return: the amount returned after the result is settled, including the original stake where applicable.
Profit: the return minus the amount staked.
For a simple £10 win bet at 5/1:
Stake: £10
Profit: £50
Total return: £60
The calculation becomes more complicated with each-way bets, accumulators, Lucky 15s and other multiple bets.
How Betting Odds Affect Your Returns
The odds determine the potential return from a winning fixed-odds bet.
Fractional odds remain common in British horse racing.
At 5/1, a £10 winning stake produces £50 profit plus the £10 stake returned.
At 2/1, the same £10 stake produces £20 profit plus the £10 stake returned.
At evens, £10 produces £10 profit plus the £10 stake.
British Racecourses explains fractional, decimal and other price formats in our horse racing betting odds section.
Understanding the odds matters before using any calculator because the price determines the potential return.
Fractional and Decimal Odds
The calculator allows you to enter the odds in the format you use.
Fractional Odds
Traditional UK horse racing prices include:
- 2/1
- 5/2
- 7/2
- 5/1
- 10/1
- 20/1
Fractional odds primarily show the potential profit relative to the stake.
A £10 bet at 5/1 returns £60 when successful: £50 profit plus the original £10 stake.
Decimal Odds
Decimal odds include the returned stake within the quoted figure.
A fractional price of 5/1 is equivalent to decimal odds of 6.00.
A £10 bet at 6.00 therefore produces a total return of:
£10 × 6.00 = £60
The underlying bet has not changed. Only the way the price is displayed differs.
Free Horse Racing Betting Calculators
The master calculator handles many different wagers, but British Racecourses also has individual calculators for specific bet types.
These are particularly useful when you already know the type of bet you want to calculate.
Single Bet Calculator
A single contains one selection.
The single bet calculator works out the return from one win or each-way selection.
Singles are the simplest betting structure because the result depends on one selection rather than a combination of outcomes.
Single Stakes About Bet Calculator
A Single Stakes About bet uses two selections and combines them differently from a standard double.
Use our Single Stakes About bet calculator when calculating this less common bet type.
Double Bet Calculator
A double contains two selections, with both required to succeed for a standard win double to return.
The return from the first selection effectively rolls into the second.
Use our double bet calculator to calculate the complete return.
Double Stakes About Bet Calculator
Double Stakes About uses two selections but contains a different combination of bets from a conventional double.
Our Double Stakes About bet calculator calculates the total outlay and resulting return.
Treble Bet Calculator
A treble combines three selections.
All three selections must win for a standard win treble to succeed.
Use our treble bet calculator to calculate the combined odds and potential return.
Accumulator Bet Calculator
An accumulator combines several selections into one multiple.
Each successful selection increases the combined price, but every selection must win for a standard accumulator to return.
Our accumulator bet calculator can calculate the combined return without having to multiply each price manually.
Trixie Bet Calculator
A Trixie uses three selections to create four separate bets:
- 3 doubles
- 1 treble
There are no singles.
Two successful selections can therefore produce a return.
Use our Trixie bet calculator to calculate the individual combinations and total result.
Patent Bet Calculator
A Patent also uses three selections but contains seven bets:
- 3 singles
- 3 doubles
- 1 treble
The inclusion of singles means one winning selection can produce a return.
Use our Patent bet calculator to calculate all seven bets together.
Round Robin Bet Calculator
A Round Robin uses three selections and contains ten separate bets.
The structure is more complicated to calculate manually than a conventional Trixie or Patent.
Our Round Robin bet calculator calculates the complete wager.
Lucky 15 Bet Calculator
A Lucky 15 contains four selections and 15 individual bets:
- 4 singles
- 6 doubles
- 4 trebles
- 1 four-fold accumulator
Because singles are included, one winner can generate a return.
Use our Lucky 15 calculator to calculate the total stake and returns across all 15 bets.
Yankee Bet Calculator
A Yankee also uses four selections but contains 11 bets:
- 6 doubles
- 4 trebles
- 1 four-fold accumulator
There are no singles, so at least two selections need to win to produce a return from a standard win Yankee.
Use our Yankee bet calculator for the complete calculation.
Super Flag Bet Calculator
The Super Flag uses five selections and includes Single Stakes About combinations alongside multiple bets.
This makes the manual calculation considerably more involved than a straightforward accumulator.
Use our Super Flag bet calculator for the full calculation.
Canadian Bet Calculator
A Canadian uses five selections to create 26 bets:
- 10 doubles
- 10 trebles
- 5 four-fold accumulators
- 1 five-fold accumulator
It contains no singles.
Our Canadian bet calculator works out the total outlay and return.
Super Yankee Bet Calculator
A Super Yankee is another name used for the Canadian structure, containing 26 bets from five selections.
Use our Super Yankee bet calculator when calculating this bet.
Lucky 31 Bet Calculator
A Lucky 31 contains five selections and 31 individual bets:
- 5 singles
- 10 doubles
- 10 trebles
- 5 four-fold accumulators
- 1 five-fold accumulator
A Lucky 31 differs from a Canadian because it includes singles.
Use our Lucky 31 bet calculator to calculate all 31 components.
Lucky 63 Bet Calculator
A Lucky 63 contains six selections and 63 bets.
These consist of singles and every available multiple across the six selections.
Because 63 separate bets are involved, the total stake can become much larger than the unit stake.
Use our Lucky 63 bet calculator for an accurate calculation.
Heinz Bet Calculator
A Heinz contains six selections and 57 bets:
- 15 doubles
- 20 trebles
- 15 four-fold accumulators
- 6 five-fold accumulators
- 1 six-fold accumulator
There are no singles.
Use our Heinz bet calculator to calculate the complete wager.
Heinz Flag Bet Calculator
A Heinz Flag adds Single Stakes About bets to the standard Heinz structure.
Our Heinz Flag bet calculator handles the additional combinations.
Alphabet Bet Calculator
An Alphabet bet uses six selections and contains 26 bets formed from two Patents, a Yankee and a six-fold accumulator.
Use our Alphabet bet calculator rather than attempting to calculate each component separately.
Super Heinz Bet Calculator
A Super Heinz uses seven selections to create 120 bets:
- 21 doubles
- 35 trebles
- 35 four-fold accumulators
- 21 five-fold accumulators
- 7 six-fold accumulators
- 1 seven-fold accumulator
There are no singles.
Use our Super Heinz bet calculator to calculate the full wager.
Super Heinz Flag Bet Calculator
A Super Heinz Flag builds on the Super Heinz structure by adding Single Stakes About combinations.
Use our Super Heinz Flag bet calculator to calculate the additional bets correctly.
Goliath Bet Calculator
A Goliath uses eight selections and contains 247 individual bets.
These consist of doubles and larger multiples through to the eight-fold accumulator.
There are no singles.
Use our Goliath bet calculator to calculate the total stake and return.
Goliath Flag Bet Calculator
A Goliath Flag adds further Single Stakes About combinations to the standard Goliath structure.
Our Goliath Flag bet calculator handles the larger number of individual bets.
Union Jack Trebles Bet Calculator
Union Jack bets use nine selections arranged as a three-by-three grid.
The Union Jack Trebles bet calculator calculates the trebles created from the selections.
Union Jack Patent Bet Calculator
A Union Jack Patent uses the same nine-selection grid but combines selections into Patent bets.
Use our Union Jack Patent bet calculator for the complete calculation.
Union Jack Round Robin Bet Calculator
This variation combines the Union Jack structure with Round Robin bets.
Use our Union Jack Round Robin bet calculator to calculate the individual combinations.
Union Jack Trixie Bet Calculator
A Union Jack Trixie creates Trixie combinations from nine selections.
Our Union Jack Trixie bet calculator calculates the total stake and return.
How to Calculate a Single Bet Manually
Singles are straightforward to calculate when using fractional odds.
For a £10 stake at 4/1:
Profit = £10 × 4 = £40
The original £10 stake is then returned:
Total return = £50
At fractional odds of 7/2:
£10 × 7 ÷ 2 = £35 profit
Add the £10 stake:
Total return = £45
A calculator becomes more useful when the odds contain several selections or the settlement involves each-way terms, Rule 4 deductions or dead heats.
How to Calculate an Accumulator
An accumulator combines the odds of each selection.
Consider a £10 four-horse accumulator at decimal prices of:
2.00 × 3.00 × 2.50 × 4.00
The combined decimal odds are:
60.00
A £10 winning stake would therefore return:
£10 × 60.00 = £600
If any of the four horses loses, the standard win accumulator loses.
This is why an accumulator can produce a much larger potential return while also requiring every selection to be successful.
Win Bet vs Each-Way Bet Calculations
A win bet has one component.
An each-way bet has two:
Win bet + place bet
A £5 each-way bet therefore costs £10 in total.
The place portion is settled at a fraction of the win odds according to the applicable each-way terms.
For example, a bookmaker might pay one-fifth of the win odds for a qualifying place.
A horse backed at 10/1 would then have place odds equivalent to 2/1 under one-fifth terms.
The number of places and fraction offered can differ by race and bookmaker.
Our each-way betting explanation covers how these wagers work, while the calculator can handle the resulting returns.
How Rule 4 Affects Bet Returns
Rule 4 deductions can apply when a horse is withdrawn from a race after you have placed a fixed-odds bet and the market is subsequently reformed.
The deduction reflects the price of the withdrawn horse and is applied to winnings under the relevant rules.
A shorter-priced withdrawn horse normally creates a larger deduction than a horse that had been available at long odds.
The British Racecourses calculator includes a Rule 4 option so you can account for the applicable deduction when calculating a settled racing bet.
How a Dead Heat Affects Your Winnings
A dead heat occurs when two or more horses cannot be separated at the finish for the relevant position.
Bookmakers divide the stake according to the number of horses involved in the dead heat.
For a two-way dead heat, half of the original stake is normally treated as the winning stake at the full odds, with the other half losing.
For example, a £10 win bet at 4/1 involved in a two-horse dead heat is effectively settled using £5 at 4/1.
The calculator allows you to enter dead-heat information rather than calculating the adjusted stake manually.
What Happens to a Non-Runner in a Multiple Bet?
A non-runner is normally removed from a conventional fixed-odds multiple and the remaining selections continue, subject to the bookmaker’s rules.
For example, a four-horse accumulator containing one non-runner would generally become a three-horse accumulator.
The non-runner does not simply count as a losing selection.
Rule 4 can still affect the remaining horse racing selections where applicable.
Always check the bookmaker’s settlement rules for the specific wager.
Unit Stake vs Total Stake
This distinction matters when using permutation bets.
A unit stake is the amount placed on each individual bet within the overall wager.
A total stake is the complete amount risked.
A 10p Lucky 15 does not cost 10p.
There are 15 individual bets:
15 × £0.10 = £1.50 total stake
A £1 Lucky 15 costs:
15 × £1 = £15
The same principle becomes increasingly important with Lucky 31s, Lucky 63s, Goliaths and other large permutation bets.
Check the calculator’s total outlay before placing a wager so you know the full amount at risk.
Potential Return vs Actual Return
A calculator can be used before or after a race.
Before betting, it shows the potential return if the selections achieve the outcomes entered.
After settlement, it can help check the actual expected return using the final results and applicable deductions.
The result remains dependent on the information entered.
If the odds, place terms, Rule 4 deduction, dead-heat information or stake are entered incorrectly, the calculated return will also be incorrect.
The bookmaker’s official settlement remains the final account transaction.
Why Comparing Odds Matters
A calculator tells you what a particular price returns. It does not tell you whether that price is good.
That distinction matters.
Suppose one bookmaker offers 5/1 about a horse and another offers 6/1.
A £10 winning bet at 5/1 returns £60.
The same £10 winning bet at 6/1 returns £70.
The selection and stake are identical. The difference comes entirely from the price.
Regularly taking a better available price can materially affect betting returns over time.
Our betting odds explained content covers how to read prices, while our guide to finding value in horse racing betting explains why a horse’s chance and its available odds need to be assessed together.
Best Odds Guaranteed and Calculating Returns
Best Odds Guaranteed can affect the price used to settle an eligible horse racing bet.
A horse may be backed at an early price before returning a bigger Starting Price.
Where the bet qualifies for BOG under the bookmaker’s current terms, the larger qualifying price may be used for settlement.
BOG rules vary between bookmakers and can contain restrictions, so check the terms applying to the individual wager.
When checking the final return with a calculator, use the odds at which the bet was actually settled.
Bet Calculators and Horse Racing Analysis
A betting calculator answers:
What would this bet return?
It does not answer:
Is this horse a good bet?
Those are separate questions.
Before placing a horse racing bet, factors such as recent horse racing form, the going, distance, class, handicap mark and likely pace can all affect the assessment of a runner.
Our horse racing pace maps and pace bias pages cover the tactical side of race analysis.
Once you have assessed the race, the available odds determine whether the price represents value.
Using the Calculator with Today’s Racing
You can use the calculator alongside our today’s racecards when assessing potential returns from the day’s races.
Racecards provide the runners and race information.
The odds show the available price.
The calculator then shows what a particular stake and price would return.
For the next day’s racing, use our tomorrow’s racecards before entering potential selections into the calculator.
Bet Types Explained
Knowing the structure of a bet is important before calculating it.
A single, Trixie, Patent, Yankee and Lucky 15 can contain some of the same selections while creating very different total stakes and return profiles.
Our horse racing bet types section explains the main wagers before you calculate them.
This is particularly useful with permutation bets where the headline unit stake does not represent the total amount risked.
Bet Calculator Frequently Asked Questions
What is a bet calculator?
A bet calculator works out the potential or settled return from a wager using information such as the stake, odds, bet type and result.
Is the British Racecourses bet calculator free?
Yes. The main calculator and the individual betting calculators on British Racecourses are free to use.
Can I calculate horse racing bets?
Yes. The calculator supports horse racing wagers and includes racing-specific settlement factors such as each-way places, Rule 4 deductions, dead heats and non-runners.
Can I calculate an each-way bet?
Yes. Select the each-way option and enter the relevant odds, place terms, stake and outcome.
Remember that a £5 each-way stake costs £10 in total because it contains a £5 win bet and a £5 place bet.
Can I calculate accumulator winnings?
Yes. Select the accumulator option, enter each selection and its odds, then add the stake. The calculator will work out the total outlay, return and profit.
Can I use fractional odds?
Yes. Fractional odds are supported and remain widely used for British horse racing.
Can I use decimal odds?
Yes. Select decimal as the odds format and enter the relevant decimal price.
Does the calculator include Rule 4?
Yes. Rule 4 can be selected when the deduction applies to the bet being calculated.
Can the calculator account for a dead heat?
Yes. Enter the dead-heat outcome and the number of runners involved where required.
What is the difference between return and profit?
Return is the complete amount paid back from a successful bet, including the returned stake where applicable.
Profit is the amount won after subtracting the original stake.
Why does my multiple cost more than the stake I entered?
Some bets contain several individual wagers.
If you enter a unit stake, that amount is multiplied by the number of individual bets in the permutation.
A £1 Lucky 15, for example, contains 15 £1 bets and therefore costs £15.
Is the calculator’s result guaranteed to match my bookmaker?
The calculator uses the details entered. Differences can occur if the bookmaker settles the wager using different odds, place terms, deductions, bonuses or other applicable rules.
Check the bookmaker’s settlement where there is a discrepancy.
Which calculator should I use?
Use the master calculator when you want one tool capable of handling different bet structures.
If you already know the wager, the dedicated Single, Accumulator, Trixie, Patent, Lucky 15, Yankee, Heinz and other specialist calculators provide a more focused route.
Responsible Betting
A large potential return does not make a bet more likely to win.
Multiple bets can produce high displayed returns because several selections and prices are combined. Each additional required winning selection also adds another way for the bet to lose.
Check the total outlay, not only the unit stake or potential return, before placing a permutation bet.
Set a betting budget and never increase a stake simply to recover previous losses.
Summary
The British Racecourses free bet calculator works out the total outlay, potential return and profit from common horse racing and sports bets.
Use the master calculator for a wide range of bet types or select one of our specialist calculators when you already know the wager you want to calculate.
Enter the correct odds, stake, outcomes and relevant settlement details before checking the result.
For horse racing, factors such as each-way terms, Rule 4 deductions, non-runners and dead heats can change the final return.
Most importantly, a calculator tells you what a price pays, not whether it is a good price. Use our horse racing betting odds content to understand the price itself and our Best Horse Racing Betting Sites comparison when you want to compare the wider racing offering available from UK bookmakers.