Martingale Calculator

Easily determine betting amounts and win/loss probabilities with our Martingale Calculator. Input initial bet, odds, and bet count for precise strategies!

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Martingale Strategy

The Martingale strategy is a popular betting system often used in games of chance such as roulette, blackjack, or sports betting.

It is based on the principle of doubling your bet after every loss, with the aim of recovering all previous losses and making a profit equal to the original bet.

How it Works:

  1. Initial Bet: Start with an initial bet, typically a small amount.
  2. Bet Doubling: After every loss, double the size of your previous bet. This means if you lose, you bet double the amount of your previous bet in the next round.
  3. Win Recovery: Continue doubling your bet with each loss until you win. When you eventually win, the profit from that win will equal the sum of all the losses plus the original bet.
  4. Restart: After a win, start again with the initial bet.


Let's say you start with an initial bet of $1. If you lose the first bet, you double your bet to $2. If you lose again, you double your bet again to $4, and so on.

  • Bet 1: $1 (lose)
  • Bet 2: $2 (lose)
  • Bet 3: $4 (lose)
  • Bet 4: $8 (win)

After winning on the fourth bet, your profit is $8 - ($1 + $2 + $4) = $1, which is equal to your initial bet.


  1. Bankroll Management: Martingale can quickly escalate bets to high amounts, risking large losses if the losing streak continues. It's essential to have a sufficient bankroll to withstand potential losses.
  2. House Limits: Many casinos and betting platforms have maximum bet limits, which can prevent the Martingale strategy from being effective in the long run.
  3. Probability: While the strategy seems logical, it relies on the assumption of an infinite bankroll and the absence of betting limits, which are unrealistic in practice. Additionally, it doesn't change the underlying odds of the game.
  4. Psychological Impact: The strategy can be psychologically challenging, as consecutive losses require increasing the size of bets, leading to higher stress and potential emotional distress.

Conclusion: The Martingale strategy is a simple yet risky betting system that aims to recover losses with an eventual win.

While it can yield profits in the short term, it carries significant risks and is not a guaranteed way to make money.

It's essential to approach it with caution and understand its limitations before employing it in any betting scenario.

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