Tools/Break-Even Calculator

Break-Even Calculator

Calculate the win percentage needed to break even at any odds. Essential for understanding the true cost of juice.

Common Odds Break-Even Rates

OddsBreak-Even %Notes
-20066.67%Heavy favorite
-15060.00%Moderate favorite
-11052.38%Standard juice
EVEN50.00%No edge either way
+11047.62%Slight underdog
+15040.00%Moderate underdog
+20033.33%Longshot
+30025.00%Big longshot

Understanding Break-Even Percentage

The break-even percentage tells you how often you need to win to profit at given odds. At standard -110 juice, you need to win 52.38% of your bets just to break even. This is why the vig matters — it's the tax on every bet.

Break-Even Formula

For negative odds: Break-Even % = |Odds| / (|Odds| + 100)
For positive odds: Break-Even % = 100 / (Odds + 100)

Why This Matters

Understanding break-even rates helps you:

  • Evaluate the true cost of juice at different sportsbooks
  • Compare value between different odds on the same bet
  • Set realistic expectations for your betting performance
  • Understand why line shopping saves you money

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