Betting Tools

Free calculators and tools to help you make smarter betting decisions. Convert odds, strip out bookmaker margin, and find value opportunities.

Available Tools

Odds Calculator

Popular

Convert between decimal, fractional, American odds and implied probability. Essential for comparing bookmaker prices.

Overround Calculator

New

Calculate market percentage, bookmaker margin, and no-vig fair odds from 2-way, 3-way, or multi-runner markets.

Dutching Calculator

New

Split one total stake across multiple runners or outcomes to target the same return whichever one wins.

Cash Out Calculator

New

Calculate the lay or hedge stake needed to lock in profit, reduce variance, or estimate a fair cash out value.

Free Bet Calculator

New

Calculate expected payout from free bets with stake returned or stake not returned terms.

AI ACCAs

AI

Rolling, smartly curated accumulators from our AI previews - prioritising stronger bets and nearer kickoffs.

Arbitrage Calculator

Advanced

Calculate sure bets with multiple staking plans including split, favourite outcomes, and smooth rounding.

EV Calculator

New

Calculate expected value of your bets by comparing bookmaker odds against your probability estimates.

Kelly Criterion

New

Determine optimal bet sizing using the Kelly Criterion formula to maximize bankroll growth while managing risk.

Each Way Calculator

New

Calculate each way bet returns for horse racing and golf. Enter win odds, place terms and see potential profits for all scenarios.

Acca Calculator

New

Build your accumulator with up to 15 selections. Add legs dynamically, choose win or each way, and see potential payouts instantly.

How to use these tools

  • •Odds Calculator: Enter odds in any format to instantly see conversions to all other formats.
  • •Overround Calculator: See the full market percentage, bookmaker margin, and no-vig fair odds for any 2-way or 3-way market.
  • •Dutching Calculator: Split a total stake across multiple selections so the return stays level if any of your backed runners wins.
  • •Cash Out Calculator: Estimate the lay or hedge stake needed to lock in profit or reduce exposure after the price moves in your favour.
  • •Free Bet Calculator: Check payouts for stake returned and stake not returned offers before placing promotional bets.
  • •AI ACCAs: Our AI analyses thousands of data points to suggest high-quality accumulator combinations.
  • •EV Calculator: Compare your probability estimates against bookmaker odds to identify value betting opportunities.
  • •Kelly Criterion: Calculate optimal bet sizes to maximize bankroll growth while managing risk of ruin.
  • •Arbitrage Calculator: Find sure bets with multiple staking plans including smooth rounding to avoid bookmaker detection.
  • •Each Way Calculator: Calculate each way bet returns for horse racing and golf with win, place, and lose scenarios.
  • •Acca Calculator: Build accumulators with up to 15 selections, add legs dynamically, and see potential payouts instantly.