No Vig Calculator

Calculate No Vig Odds And Market Margins

The No Vig Calculator is a powerful tool designed to strip away the bookmaker’s margin (vig) from betting odds, providing a clear view of true probabilities and optimal staking strategies.

This tool is perfect for bettors looking to identify value bets, calculate expected value (EV), and determine optimal stakes using the Kelly Criterion.

With options for multiple odds formats and up to eight selections, this calculator provides vital information in a simple, easy-to-use format.

What Is A No Vig Calculator?

A No Vig Calculator removes the bookmaker's margin, often called the “vig” or “overround” from betting odds.

This process reveals the true probability of each selection, enabling you to:

Identify value bets where the bookmaker's odds are higher than the no-vig odds.

Calculate the market margin, which indicates how much profit the bookmaker has built into the odds.

Optimise your stake size using the Kelly Criterion for long-term bankroll growth.

This tool helps you make smarter decisions by highlighting the difference between bookmaker odds and no-vig odds.

Why Use A No Vig Calculator?

Understanding the true probability of a bet and the bookmaker’s margin is critical for spotting value and making profitable bets.

The No Vig Calculator simplifies this process by:

Revealing no-vig odds: Calculates true probabilities by removing the bookmaker's margin.

Displaying market margin: Shows how much of a percentage edge the bookmaker holds over bettors.

Optimising stakes: Provides staking recommendations using the full Kelly Criterion.

Highlighting expected value (EV): Indicates the potential profitability of each selection.

How To Use The No Vig Calculator

Follow these step-by-step instructions to calculate no-vig odds and market margins:

1. Choose Your Odds Format:

Begin by selecting your preferred odds format:

Decimal (e.g., 6.00)

Fractional (e.g., 5/1)

American (e.g., +500)

2. Select the Number of Selections:

Choose the number of selections you want to calculate. The calculator allows between 2 and 8 selections.

3. Enter Selection Odds:

Input the bookmaker odds for each of your selections. Ensure the format matches the odds format selected in Step 1.

4. View the Market Margin:

The calculator will display the Market’s Margin as a percentage, representing the bookmaker's edge built into the odds.

5. Review the Outputs:

The calculator will generate a detailed table displaying the following information for each selection:

No Vig Odds: The true odds after removing the bookmaker’s margin.

Bookie Odds: The original odds provided by the bookmaker.

EV % (Expected Value): The potential profitability of the selection based on no-vig odds.

% of Bankroll on Full Kelly: The suggested stake percentage for optimal bankroll growth using the full Kelly Criterion.

What Does The Output Tell You?

Market’s Margin: This shows how much of an edge the bookmaker has, giving you insight into how fair the market odds are.

No Vig Odds: These odds reflect the true probability of the outcome without the bookmaker’s margin.

EV %: Positive values indicate a value bet, where the bookmaker's odds are favourable compared to the true odds.

Kelly Criterion Staking: Suggests the optimal stake size to maximize long-term bankroll growth.

Why Use The No Vig Calculator?

The No Vig Calculator is invaluable if you want to:

Identify and exploit value betting opportunities.

Understand the true probabilities behind bookmaker odds.

Optimise your staking strategies using the Kelly Criterion.

Gain a clearer understanding of the bookmaker’s margin in different markets.

With its ability to break down complex calculations into actionable insights, this tool can allow you to make data-driven decisions and improve your profitability.