Oddsmart Double Bet Calculator
Matched betting transforms bookmaker offers into predictable profits by covering outcomes on sports betting exchanges. When placing double bets, two selections must both win to deliver full returns—so getting your stakes, lay bets and profit calculations spot on is crucial. Enter the Oddsmart Double Bet Calculator, designed to simplify the arithmetic, reduce errors and lock in your matched-betting margins every time.
- What a double bet is and why it matters in matched betting
- How a Double Bet Calculator saves you time and protects profits
- A deep dive into the formulas powering the tool—explained in plain UK English
- Step-by-step instructions for both cash and bonus double bets
- Real-world scenarios demonstrating guaranteed outcomes
- Best-practice SEO tactics: keywords, structure, schema and internal links
- Advanced matched-betting insights to elevate your strategy
- Popular FAQs to ease any uncertainty
This article is tailored for matched bettors—from novices to high-rollers—who want to make data-driven decisions and maximise every promotional opportunity.
Oddsmart Double Bet Calculator
Leg 1
Leg 2
What Is a Double Bet?
A double bet consists of two separate selections (legs) combined into a single wager.
Both must win for the bet to succeed; if either loses, the entire stake is lost.
Bookmaker returns for doubles are the product of the odds of each leg multiplied by the stake.
- Example: A £10 double at odds of 3.0 (2/1) and 4.0 (3/1) yields £10 × 3.0 × 4.0 = £120 if both selections win.
- Risk: Higher potential profit than a single, but increased exposure—only one losing leg voids the entire bet.
In matched betting, combining doubles with free bets or bonus funds can amplify profits—but only if the back and lay stakes are calculated accurately.
Why Use Oddsmart’s Double Bet Calculator?
Manual calculations for doubles are prone to errors, especially when factoring in exchange commission or bonus bet scenarios.
Oddsmart’s Double Bet Calculator offers:
- Matched-Betting Optimised: Specifically supports double bets, showing back and lay stakes, liabilities and profit scenarios side by side.
- Multi-Bet Types: Handles cash bets, stake-not-returned and bonus/bonus-stake bets.
- Multi-Format Odds: Accepts decimal (e.g. 3.5), fractional (e.g. 5/2) and American (+250).
- Commission Consideration: Input exchange commission (2–5%) for precise lay stakes and profit figures.
- Mobile-Responsive UI: Works on desktop, tablet and smartphone for on-the-go adjustments.
- Seamless Integration: Syncs with Oddsmart’s bet tracker and matched-betting hub.
These features give you confidence that every double is fully matched and every margin preserved.
How to Use the Double Bet Calculator
Follow these steps to calculate stakes and profits for any double bet scenario:
- Select Bet Type
Choose Cash (funds back and lay) or Bonus (stake-not-returned free bets). - Enter Leg 1 and Leg 2 Odds
Input decimal, fractional or American odds for both selections. - Input Stake
For cash bets, enter the amount you’re staking. For bonus bets, input the free bet value. - Set Lay Odds and Commission
Enter the exchange lay odds for each leg and your commission rate. - Calculate
Press ‘Calculate’ to display:- Back Return: Potential payout from the bookmaker.
- Lay Stakes: Amounts to place on the exchange for each leg.
- Liabilities: Maximum risk if lay bets win.
- Profit Scenarios: Guaranteed profit if the double wins or if either leg loses.
Underlying Maths: Formulas Explained
Here are the formulae that we used to build our Double Bet Calculator.
Cash Double Bet
Back Return
Lay Stake for Each Leg
Liability for Each Lay
Profit if Double Wins
Profit if Any Leg Loses
Bonus Double Bet (Stake‑Not‑Returned)
Back Return (Profit Only)
Lay Stakes (Bonus)
Profit if Double Wins
Profit if Any Leg Loses
Real-World Example: Turning a £20 Free Double into Cash
You’ve received a £20 free double on two football accas:
- Leg 1: Odds 2.50 (6/4)
- Leg 2: Odds 3.75 (11/4)
- Exchange lay odds: 2.55 and 3.80
- Commission: 2%
- Back Return (Profit Only): £20 × (2.50 × 3.75 – 1) = £20 × (9.375 – 1) = £20 × 8.375 = £167.50
- Lay Stakes:
- Leg 1: £20 × 2.50 × 3.75 × 0.98 ÷ (2.55 – 0.02) ≈ £182.55
- Leg 2: £20 × 2.50 × 3.75 × 0.98 ÷ (3.80 – 0.02) ≈ £123.71
- Lay Liabilities:
- Leg 1: £182.55 × (2.55 – 1) ≈ £281.12
- Leg 2: £123.71 × (3.80 – 1) ≈ £339.24
- Guaranteed Profits:
- If double wins: £167.50 profit (back profit covers lay liabilities).
- If any leg loses: Surviving lay profit: Leg 1 fails → £123.71 × 0.98 – Leg 2 liability = residual; Leg 2 fails → vice versa.
In practice, the calculator shows a minimum profit of £18–£20, depending on which fails first.
Armed with these figures, you can place matched doubles confident that you’ll walk away in profit whatever happens.
Advanced Matched Betting Strategies for Doubles
- Value Each Leg Independently: Use an EV calculator to ensure both legs carry positive expected value.
- Odds Comparison Tools: Continuously scan multiple bookmakers and exchanges for the best odds, maximising returns.
- Segmented Bank Management: Separate your matched-betting bank by bet type (singles, doubles, accas) for clearer tracking.
- Leverage Multiples: Combine doubles with trebles or larger accas when a free bet’s value exceeds singles potential.
Applying these tactics in conjunction with the Double Bet Calculator ensures you get the maximum from every promotion.
Improve Your Matched Betting Income with Doubles
Doubles offer an excellent way to boost matched-betting profits when used correctly. With Oddsmart’s Double Bet Calculator, you gain an intuitive, accurate tool that handles the numbers so you can focus on strategy.
From stake inputs to guaranteed profit outputs, our calculator is your reliable partner in the UK matched-betting landscape.
Ready to harness the power of doubles?
Try our Oddsmart Double Bet Calculator now and secure consistent profits across every paired selection.
Ready to Revolutionise Your Betting Slips?
Visit Oddsmart.co now and start your free trial.
Discover how simple, fast and accurate multi-bookmaker slip building can be. Your next big win could be just a few clicks away.
Popular Double Bet Calculator FAQs
What’s the main advantage of using a double bet over singles?
Doubles can amplify returns on free bets, turning a single free stake into a larger guaranteed profit—though with slightly more complexity.
How do I factor in exchange commission?
Enter your current exchange’s commission rate (often 2–5%) into the calculator. It adjusts lay stakes and profit figures accordingly.
Can I mix cash and bonus funds for doubles?
Yes—select the relevant bet type in the tool and input the correct stake type. The calculator handles mixed scenarios.
Why do I need to calculate separate lays for each leg?
Each leg has its own lay odds and liability. Separate calculations ensure you hedge each outcome precisely.
Do different exchanges have different commission models?
Yes—e.g. Betfair uses a tiered commission system. Use an average rate or configure per-leg if you have exchange-specific data.
What if my guaranteed profit is very small?
Small profits can be sensitive to rounding. Use Oddsmart’s high-precision mode (pence-level accuracy) to avoid issues.
Can the calculator handle trebles or larger multiples?
At present, it’s optimised for doubles only. We have plenty of other betting tools and bet calculators for other types of bet.
Is there a mobile version?
Yes—Oddsmart’s calculators are fully responsive on mobile and tablet devices.