Betting calculators: 10 free tools for smarter betting
1win is licencié under Curaçao 8048/JAZ and offers 40 000+ sports marchés to 400 000+ joueurs worldwide. All 10 calculators below are free, run entirely in your browser, and use proven mathematical formulas. S'inscrire with code promo XLBONUS to access 1win's full sportsbook and casino with your bonus active from the start.
All betting and casino calculators
Cotes converter
Convert between decimal, fractional, American, Hong Kong, Indonésien, and Malay cotes instantanély. Also shows probabilité implicite.
Open cotes converter →Calculateur parlay
Calculate combined cotes décimales, total payout, and probabilité implicite for multi-leg accumulateurs. Assistances jusqu'à 12 legs in decimal, American, or fractional format.
Open calculateur parlay →Critère de Kelly calculator
Determine the mathematically optimal fraction of your bankroll to stake on any bet given your edge and the cotes. Assistances full, half, and quarter Kelly.
Open Kelly calculator →Arbitrage calculator
Find the guaranteed-profit stake split for a 2-way marché. Enter your total budget and the cotes décimales from two bookmakers to see the exact stakes and profit.
Open calculateur d'arbitrage →Couverture calculator
Calculate the hedge stake that locks in profit or eliminates loss on an existing bet. Assistances equal-profit, no-loss, and custom hedge stake modes.
Open calculateur de couverture →Each-way calculator
Break down win and place returns for horse racing each-way bets. Choose your place fraction (1/4, 1/5, 1/3, 1/2) and number of places paid.
Open calculateur each-way →Probabilité implicite calculator
Convert any set of cotes to implied probabilities and calculate the bookmaker overround (margin) for the full marché. Add as many outcomes as you need.
Open probability calculator →Bankroll calculator
Calculate the recommandé unit taille de la mise for your bankroll and risk tolerance, plus an estimated risk-of-ruin probability based on your win rate and cotes.
Open calculateur de bankroll →Surebet calculator
Detect 2-way and 3-way surebet opportunities and calculate proportional stakes automatically. Identifies whether any set of cotes creates a guaranteed profit.
Open calculateur surebet →Paris couverts calculator
Calculate back/lay stake, lay liability, and net profit after exchange commission. Handles both qualifying bets and free bet (stake not returned) scenarios.
Open calculateur de paris couverts →Comment utiliser these tools
Every calculator on cette page runs entirely in your browser. Non data is sent to a server, no account is required to use them, and all calculations update as you type. The tools are designed for bettors at all levels, from beginners learning how cotes décimales translate into probability, to experienced players sizing positions using the Critère de Kelly or scanning marchés for arbitrage.
Start with the cotes converter if you are new to different cotes formats. Move to the probabilité implicite calculator to understand bookmaker margins. If you are building accumulateurs, use the calculateur parlay to check combined cotes and payouts before committing. For systematic bankroll management, the Critère de Kelly calculator and calculateur de bankroll work together to size your stakes correctly.
Arbitrage and surebet tools are aimed at advanced players who compare prices across bookmakers. The calculateur de paris couverts is the right tool for extracting guaranteed profit from free bet offers and bonus de bienvenuees.
Why use 1win for paris sportifs
1win's Curaçao 8048/JAZ licence covers all marchés available on the platform. With 40 000+ events priced quotidien across 30+ sports, the sportsbook provides the marché depth needed to apply the strategies these calculators support. S'inscrire with code promo XLBONUS to access all marchés and claim your offre de bienvenue on your first dépôt.
FAQ
Are these calculators free to use?
Oui. Tous les calculateurs on cette page are completely free. Non account, login, or registration is required to use any of the tools.
Which calculator should I start with?
Start with the cotes converter to understand the format 1win uses (decimal). Then try the probabilité implicite calculator to see what margin is built into any marché you are looking at.
Do the calculations account for bookmaker commission?
The calculateur de paris couverts deducts exchange commission from lay winnings. Other tools use raw cotes décimales. For exchange bets, always apply commission adjustments using the matched bet tool.
Are these tools suitable for jeux de casino?
Some tools apply to jeux de casino. The probabilité implicite calculator can compute avantage de la maison from game cotes, and the calculateur de bankroll is relevant to any game with a measurable edge. Jeux of pure chance with negative valeur attendue should use the bankroll tool to set loss limits rather than profit targets.
How do I get the XLBONUS code promo benefit?
S'inscrire an account at 1win.codes, enter XLBONUS during registration or on your first dépôt, and the bonus de bienvenue is applied to ton compte automatically. Check the current bonus terms for minimum dépôt and misering requirements.