Sportsbook Bonus Value Calculator

Calculate your real bonus value before you deposit. This calculator uses the same expected-value formula I apply in every sportsbook review on StrokeScore. Input the offer details below to see whether it's actually worth taking.

Offer / Bonus Amount (C$)

Wagering Requirement (x)

Average House Edge (%)

Stake-Not-Returned?

Total Wagering Volume Required C$3,000

Expected Cost of Wagering C$135

Effective Bonus Face Value C$50

Real Expected Value -C$85

Verdict Not Worth It

How This Calculator Works

Step 1: I take the offer amount and multiply by the wagering requirement to get the total volume you need to bet. C$100 at 30x = C$3,000 in qualifying wagers.

Step 2: I multiply that volume by the house edge (default 4.5% for Ontario sportsbook odds at -110) to estimate your expected loss from clearing the requirement.

Step 3: For stake-not-returned offers (most Ontario sportsbooks), I halve the face value because you only keep the profit, not the stake.

Step 4: I subtract the expected wagering cost from the effective face value. If the result is positive, the offer adds value. If negative, it costs more to clear than it's worth.

Quick Reference

At average -110 odds and 4.5% house edge:

10x wagering: Break-even on almost any offer above C$50
20x wagering: Needs an offer above C$90 to be worthwhile
30x wagering: Needs an offer above C$135
50x wagering: Almost never worth it for recreational bettors

These thresholds double for stake-not-returned offers.