Zakładting calculators: 10 free tools for smarter betting

1win is licensed under Curaçao 8048/JAZ and offers 40,000+ sports markets to 400 000+ graczy worldwide. All 10 calculators below are free, run entirely in your browser, and use proven mathematical formulas. Zarejestruj się with kod promocyjny XLBONUS to access 1win's full bukmacher and kasyno with your bonus active from the start.

All betting and kasyno calculators

Kursy

Przelicznik kursów

Convert between decimal, fractional, American, Hong Kong, Indonesian, and Malay kursy instantly. Also shows implied probability.

Open kursy converter →
Akumulator

Kalkulator parlaya

Calculate combined decimal kursy, total payout, and implied probability for multi-leg akumulators. Supports up to 12 legs in decimal, American, or fractional format.

Open parlay calculator →
Stake sizing

Kryterium Kelly'ego calculator

Determine the mathematically optimal fraction of your bankroll to stake on any bet given your edge and the kursy. Supports full, half, and quarter Kelly.

Open Kelly calculator →
Arbitraż

Arbitraż calculator

Find the guaranteed-profit stake split for a 2-way market. Enter your total budget and the decimal kursy from two bookmakers to see the exact stakes and profit.

Open arbitrage calculator →
Hedging

Hedge calculator

Calculate the hedge stake that locks in profit or eliminates loss on an existing bet. Supports equal-profit, no-loss, and custom hedge stake modes.

Open hedge calculator →
Horse racing

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 →
Probability

Prawdopodobieństwo implikowane calculator

Convert any set of kursy to implied probabilities and calculate the bookmaker overround (margin) for the full market. Add as many outcomes as you need.

Open probability calculator →
Bankroll

Bankroll calculator

Calculate the recommended unit stake size for your bankroll and risk tolerance, plus an estimated risk-of-ruin probability based on your win rate and kursy.

Open bankroll calculator →
Surebet

Surebet calculator

Detect 2-way and 3-way surebet opportunities and calculate proportional stakes automatically. Identifies whether any set of kursy creates a guaranteed profit.

Open surebet calculator →
Zakład dopasowanyting

Zakład dopasowany 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 matched bet calculator →

Jak używaćse tools

Every calculator on this page runs entirely in your browser. Nie data is sent to a server, no konto 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 decimal kursy translate into probability, to experienced players sizing positions using the Kryterium Kelly'ego or scanning markets for arbitrage.

Start with the kursy converter if you are new to different kursy formats. Move to the implied probability calculator to understand bookmaker margins. If you are building akumulators, use the parlay calculator to check combined kursy and payouts before committing. For systematic bankroll management, the Kryterium Kelly'ego calculator and bankroll calculator work together to size your stakes correctly.

Arbitraż and surebet tools are aimed at advanced players who compare prices across bookmakers. The matched bet calculator is the right tool for extracting guaranteed profit from free bet offers and bonus powitalnyes.

Why use 1win for zakłady sportowe

1win's Curaçao 8048/JAZ licence covers all markets available on the platform. With 40,000+ events priced daily across 30+ sportów, the bukmacher provides the market depth needed to apply the strategies these calculators support. Zarejestruj się with kod promocyjny XLBONUS to access all markets and claim your welcome offer on your pierwszy depozyt.

Zarejestruj się w 1win and claim XLBONUS

FAQ

Are these calculators free to use?

Tak. Wszystkie kalkulatory on this page are completely free. Nie konto, login, or registration is required to use any of the tools.

Which calculator should I start with?

Start with the kursy converter to understand the format 1win uses (decimal). Then try the implied probability calculator to see what margin is built into any market you are looking at.

Do the calculations account for bookmaker commission?

The matched bet calculator deducts exchange commission from lay winnings. Other tools use raw decimal kursy. For exchange bets, always apply commission adjustments using the matched bet tool.

Are these tools suitable for casino games?

Some tools apply to gry kasynowe. The implied probability calculator can compute house edge from game kursy, and the bankroll calculator is relevant to any game with a measurable edge. Games of pure chance with negative expected value should use the bankroll tool to set loss limits rather than profit targets.

How do I get the XLBONUS promo code benefit?

Zarejestruj się an konto at 1win.codes, enter XLBONUS during registration or on your pierwszy depozyt, and the bonus powitalny is applied to your konto automatically. Check the current bonus terms for minimum deposit and wymogi obrotu.