Free SNR calculator · No account required · UK 18+
Free Bet Calculator for Matched Betting
Estimate the lay stake, exchange liability and retained value of a stake-not-returned free bet.
Select Free Bet (SNR), enter the free-bet amount, current bookmaker back odds, current exchange lay odds and commission. The calculator estimates the exchange stake required to bring the two possible outcomes close together.
What does SNR mean?
SNR means stake not returned. If the free bet wins, the promotional stake is normally not included in the bookmaker return. This requires a different calculation from a normal qualifying cash bet or a stake-returned reward.
Check the reward terms in your own account before selecting a calculator mode. A calculator cannot confirm eligibility, expiry, wagering conditions or whether enough exchange liquidity is available at the displayed price.
How to read the result
- Lay stake: the estimated exchange stake used to oppose the free-bet selection.
- Liability: the balance the exchange may hold if the backed selection wins.
- Retained value: the estimated amount retained after the two sides and commission are combined.
Free bet calculator questions
What figures do I need?
The free-bet amount, live bookmaker back odds, live exchange lay odds and the commission rate for the exchange account or market.
Is liability the same as the lay stake?
No. The lay stake is placed at the exchange. Liability is the amount the exchange may reserve to cover the lay position.
Does this page list current free-bet offers?
No. This public page contains the calculator and educational checks only. The current offer directory, bookmaker-specific details and guided workflows stay inside the gated Valyoo product.
Calculations are estimates, not guarantees. Recheck live odds, liquidity, commission and terms before acting. Mistakes can cause losses.