Betting calculators: 10 free tools for smarter betting

1win is liċenzjat under Curaçao 8048/JAZ and offers 40,000+ sports swieq to 400,000+ plejers worldwide. All 10 calculators below are free, run entirely in your browser, and use proven mathematical formulas. Irreġistra bil-kodiċi promozzjonali XLBONUS to aċċess 1win's full sportsbook and casino with your bonus active from the start.

All betting and casino calculators

Odds

Odds converter

Convert between decimal, fractional, American, Hong Kong, Indonesian, and Malay odds istantanjament. Also shows implied probabbiltà.

Open odds converter →
Akkumulatur

Parlay calculator

Calculate combined decimal odds, total payout, and implied probabbiltà for multi-leg akkumulaturs. Appoġġs up to 12 legs in decimal, American, or fractional format.

Open parlay calculator →
Stake sizing

Kelly criterion calculator

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

Open Kelly calculator →
Arbitrage

Arbitrage calculator

Find the guaranteed-profitt stake split for a 2-way suq. Daħħal your total budget and the decimal odds from two bookmakers to see the exact stakes and profitt.

Open arbitrage calculator →
Hedging

Hedge calculator

Calculate the hedge stake that locks in profitt or eliminates loss on an eżistenti bet. Appoġġs equal-profitt, 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 →
Probabbiltà

Implied probabbiltà calculator

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

Open probabbiltà calculator →
Bankroll

Bankroll calculator

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

Open bankroll calculator →
Surebet

Surebet calculator

Detect 2-way and 3-way surebet opportunities and calculate proportional stakes awtomatikament. Identifies whether any set of odds creates a guaranteed profitt.

Open surebet calculator →
Matched betting

Matched bet calculator

Calculate back/lay stake, lay liability, and net profitt after exchange commission. Handles both qualifying bets and imħatra bla ħlas (stake not returned) scenarios.

Open logħbaed 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 kont is meħtieġ to use them, and all calculations update as you type. The tools are designed for bettors at all levels, from beginners learning how decimal odds translate into probabbiltà, to experienced plejers sizing positions using the Kelly criterion or scanning swieq for arbitrage.

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

Arbitrage and surebet tools are aimed at advanced plejers who compare prices across bookmakers. The logħbaed bet calculator is the right tool for extracting guaranteed profitt from imħatra bla ħlas offers and bonus ta' merħbaes.

Why use 1win for imħatri sportivi

1win's Curaçao 8048/JAZ licence covers all swieq disponibbli on the pjattaforma. With 40,000+ avvenimenti priced kuljum across 30+ sports, the sportsbook provides the suq depth needed to apply the strategies these calculators support. Irreġistra bil-kodiċi promozzjonali XLBONUS to aċċess all swieq and claim your merħba offer on your l-ewwel depożitu.

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Mistoqsijiet Frekwenti

Are these calculators free to use?

Yes. All calculators on this page are lestily free. No kont, login, or reġistrazzjoni is meħtieġ to use any of the tools.

Which calculator should I start with?

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

Do the calculations account for bookmaker commission?

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

Are these tools suitable for casino games?

Some tools apply to loġħob tal-każinò. The implied probabbiltà calculator can compute house edge from loġħba odds, and the bankroll calculator is relevant to any loġħba with a measurable edge. Games of pure chance with negative expected value should use the bankroll tool to set loss limits rather than profitt targets.

How do I get the XLBONUS promo code benefit?

Irreġistra an kont at 1win.codes, daħħal XLBONUS during reġistrazzjoni or on your l-ewwel depożitu, and the bonus ta' merħba is applied to your kont awtomatikament. Check the current termini tal-bonus for minimu depożitu and rekwiżiti ta' wager.