Uses implied win probability × profit on win; stake is not returned.

Free Bet Conversion Calculator

Adjust inputs to see updated results.

Table of Contents

How to Use This Calculator

Enter free bet amount and decimal odds. The tool computes SNR (stake-not-returned) expected value: on a win you receive profit only, not the free-stake face.

Free bet size

Token value you must place in one shot.

Decimal odds

Line you can actually get—narrow favorites often maximize conversion.

Read SNR EV

Lower than cash-bonus EV at the same odds—by design.

Compare tools

Use bonus bet conversion when stake returns like cash.

SNR Expected Value

EV ≈ free × (1/d) × (d − 1)

Matches the code path for free_conv in the shared handler.

Examples

Example 1 — $50 at 2.00

EV ≈ 50 × 0.5 × 1 = $25. Contrast with cash bonus path on the sister tool.

Example 2 — Short favorite

Decimal 1.40 → smaller per-win profit but higher win rate—EV may still be competitive.

Example 3 — Matched betting

Pair with qualifier loss in matched betting EV.

Frequently Asked Questions

Wins do not return the free-stake amount—only profit lands in your balance.

Convert to decimal first.

Same family—compare with free play value for alternate framing.

Yes—SNR value is sensitive to the price you can actually bet.

No—expected value only; you can lose the free bet outright.