#200 · Betting tool

Two Bookmaker Odds Comparison Calculator

Compare two bookmakers’ decimal odds for the same outcome, including potential return, implied probability, and the relative price improvement.

Calculator

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How to use this betting tool

  1. Enter values from the same market and settlement context.
  2. Check units, probability assumptions, and decimal odds.
  3. Select Calculate and review both the headline and supporting figures.
  4. Change any input to mark the displayed result for recalculation.

Formula and calculation

Compare two bookmakers’ decimal odds for the same outcome, including potential return, implied probability, and the relative price improvement.

Potential return = stake × decimal odds. Implied probability = 1 ÷ odds. Relative improvement = better odds ÷ lower odds − 1.

Calculations run locally in your browser. No betting data is transmitted.

Worked example

At a $100 comparison stake, odds 1.95 return $195 and odds 2.05 return $205. The better quote adds $10 in potential return.

Assumptions and limits

Odds can change before placement. Account for commission, stake limits, bonuses, and materially different void or overtime rules outside this simple quote comparison.

This informational tool does not recommend a wager or guarantee a result. Confirm operator terms and local rules.

FAQ

How is two bookmaker odds comparison calculator calculated?

Potential return = stake × decimal odds. Implied probability = 1 ÷ odds. Relative improvement = better odds ÷ lower odds − 1.

Does this calculator use live bookmaker data?

No. Every value is entered and calculated locally in your browser; no odds or account data is fetched.

Why can the result differ from a bookmaker settlement?

Operators may apply different market definitions, rounding, commission, void, overtime, or jurisdiction-specific rules.

When are displayed figures rounded?

Calculations use JavaScript numeric precision and values are rounded only for display, normally to two decimal places.

Does a positive result mean the bet will win?

No. The output describes the entered numbers and assumptions; it does not predict an event or guarantee a return.