Betting calculators: 10 free tools for smarter betting
1win is αδειοδοτημένο under Curaçao 8048/JAZ and offers 40,000+ αθλήματα αγορές to 400,000+ παίκτες worldwide. All 10 calculators below are free, run entirely in your browser, and use proven mathematical formulas. Εγγράψου με τον κωδικό προσφοράς XLBONUS to access 1win's full sportsbook and casino with your bonus active from the start.
All betting and casino calculators
Αποδόσεις converter
Convert between decimal, fractional, American, Hong Kong, Indonesian, and Malay αποδόσεις άμεσα. Also shows implied πιθανότητα.
Open αποδόσεις converter →Parlay calculator
Calculate combined decimal αποδόσεις, total payout, and implied πιθανότητα for multi-leg συσσωρευτήςs. Υποστήριξηs up to 12 legs in decimal, American, or fractional format.
Open parlay calculator →Kelly criterion calculator
Determine the mathematically optimal fraction of your bankroll to ποντάρισμα on any bet given your edge and the αποδόσεις. Υποστήριξηs full, half, and quarter Kelly.
Open Kelly calculator →Arbitrage calculator
Find the guaranteed-κέρδος ποντάρισμα split for a 2-way αγορά. Βάλε your total budget and the decimal αποδόσεις from two bookmakers to see the exact ποντάρισμαs and κέρδος.
Open arbitrage calculator →Hedge calculator
Calculate the hedge ποντάρισμα that locks in κέρδος or eliminates loss on an υπάρχον bet. Υποστήριξηs equal-κέρδος, no-loss, and custom hedge ποντάρισμα modes.
Open hedge calculator →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 each-way calculator →Implied πιθανότητα calculator
Convert any set of αποδόσεις to implied probabilities and calculate the bookmaker overround (margin) for the full αγορά. Add as many outcomes as you need.
Open πιθανότητα calculator →Bankroll calculator
Calculate the recommended unit ποντάρισμα size for your bankroll and risk tolerance, plus an estimated risk-of-ruin πιθανότητα based on your win rate and αποδόσεις.
Open bankroll calculator →Surebet calculator
Detect 2-way and 3-way surebet opportunities and calculate proportional ποντάρισμαs αυτόματα. Identifies whether any set of αποδόσεις creates a guaranteed κέρδος.
Open surebet calculator →Matched bet calculator
Calculate back/lay ποντάρισμα, lay liability, and net κέρδος after exchange commission. Handles both qualifying bets and δωρεάν στοίχημα (ποντάρισμα not returned) scenarios.
Open αγώναςed bet calculator →How to use these tools
Every calculator on this page runs entirely in your browser. No data is sent to a server, no λογαριασμό is απαιτούμενο to use them, and all calculations update as you type. The tools are designed for bettors at all levels, from beginners learning how decimal αποδόσεις translate into πιθανότητα, to experienced παίκτες sizing positions using the Kelly criterion or scanning αγορές for arbitrage.
Start with the αποδόσεις converter if you are new to different αποδόσεις formats. Move to the implied πιθανότητα calculator to understand bookmaker margins. If you are building συσσωρευτήςs, use the parlay calculator to check combined αποδόσεις and payouts before committing. For systematic bankroll management, the Kelly criterion calculator and bankroll calculator work together to size your ποντάρισμαs correctly.
Arbitrage and surebet tools are aimed at advanced παίκτες who compare prices across bookmakers. The αγώναςed bet calculator is the right tool for extracting guaranteed κέρδος from δωρεάν στοίχημα offers and μπόνους καλωσορίσματοςes.
Why use 1win for αθλητικά στοιχήματα
1win's Curaçao 8048/JAZ licence covers all αγορές διαθέσιμο on the πλατφόρμα. With 40,000+ γεγονότα priced καθημερινά across 30+ αθλήματα, the sportsbook provides the αγορά depth needed to apply the strategies these calculators support. Εγγράψου με τον κωδικό προσφοράς XLBONUS to access all αγορές and claim your καλωσόρισμα offer on your πρώτη κατάθεση.
Συχνές Ερωτήσεις
Are these calculators free to use?
Yes. All calculators on this page are ολοκλήρωσεly free. No λογαριασμό, login, or εγγραφή is απαιτούμενο to use any of the tools.
Which calculator should I start with?
Start with the αποδόσεις converter to understand the format 1win uses (decimal). Then try the implied πιθανότητα calculator to see what margin is built into any αγορά you are looking at.
Do the calculations account for bookmaker commission?
The αγώναςed bet calculator deducts exchange commission from lay winnings. Other tools use raw decimal αποδόσεις. For exchange bets, always apply commission adjustments using the αγώναςed bet tool.
Are these tools suitable for casino games?
Some tools apply to παιχνίδια καζίνο. The implied πιθανότητα calculator can compute house edge from παιχνίδι αποδόσεις, and the bankroll calculator is relevant to any παιχνίδι with a measurable edge. Games of pure chance with negative expected value should use the bankroll tool to set loss limits rather than κέρδος targets.
How do I get the XLBONUS promo code benefit?
Εγγραφή an λογαριασμό at 1win.codes, βάλε XLBONUS during εγγραφή or on your πρώτη κατάθεση, and the μπόνους καλωσορίσματος is applied to your λογαριασμό αυτόματα. Check the current όροι μπόνους for ελάχιστο κατάθεση and απαιτήσεις στοιχηματισμού.