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Calculator Collection

Compare calculators

Both calculators run independently β€” change the inputs on either side to compare results.

Betting Odds

Matched Betting Calculator

Work out the guaranteed profit from a bookmaker free bet by calculating the correct lay stake on a betting exchange. Used whenever you receive a free bet offer.

Fill in the required fields to see your result.
Betting Odds

Arbitrage Betting Calculator

Identifies guaranteed profit from arbitrage opportunities by computing the optimal stake split across two bookmakers offering opposing sides of the same market. Use it whenever combined implied probabilities sum to less than 100%.

Fill in the required fields to see your result.

Key differences

Matched Betting CalculatorArbitrage Betting Calculator
CategoryBetting OddsBetting Odds
Inputs required44
ResultRisk-Free Profit ($)Arbitrage Profit ($)
What it doesWork out the guaranteed profit from a bookmaker free bet by calculating the correct lay stake on a betting exchange. Used whenever you receive a free bet offer.Identifies guaranteed profit from arbitrage opportunities by computing the optimal stake split across two bookmakers offering opposing sides of the same market. Use it whenever combined implied probabilities sum to less than 100%.