Free Spins Value Calculator
Free spins look like a gift, but the fine print — the game's RTP, any wagering requirement on what you win, and a max-cashout cap — usually decides what they're actually worth. Work out the real expected value before you judge the offer.
Fill in the number of spins, the spin value and the RTP to see the expected value.
This calculation is a mathematical simplification based on the game's RTP and assumes any wagering requirement is played through at its theoretical house-edge cost. Real outcomes vary round to round because of variance – EV describes the expected average over a very large number of rounds, not the result of a single free spins offer. Always read the operator's full terms: many restrict which games count, weight contributions differently, or set additional conditions beyond RTP, wagering and max cashout.
Free spins are one of the most common casino bonuses, and one of the easiest to misjudge. "50 free spins" sounds like a fixed gift, but what it's actually worth depends on the game's RTP, whether any winnings must be wagered again before withdrawal, and — the detail that usually matters most — a maximum cashout limit on what you can ever take out. This calculator works out the real expected value of a free spins offer once all three are accounted for.
How the calculation works
Each free spin is worth its stated spin value multiplied by the game's RTP, in expectation. Multiply that by the number of spins and you get the gross value — what the spins are worth on average before anything else is applied.
Gross value = Spins × Spin value × RTP. Wagering cost = Gross value × Wagering multiplier × (1 − RTP). Net EV = Gross value − Wagering cost, capped at the max cashout (if any).
If the winnings carry a wagering requirement — say 35× before they can be withdrawn — each unit wagered loses (1 − RTP) to the house edge on average, exactly like a deposit bonus. That expected cost is subtracted from the gross value to give the net expected value before any cap.
The step that usually decides the outcome is the max-cashout cap. Many free spins offers limit how much of the winnings can ever be withdrawn — for example 100, regardless of how much the spins nominally return. When the uncapped value exceeds that limit, the cap — not the RTP or the wagering requirement — is what determines the real value of the offer, which is why this calculator shows its effect separately.
Worked example
Say an operator offers 50 free spins worth 0.20 each on a slot with 96% RTP, with no wagering requirement on the winnings and no cashout cap. Gross value = 50 × 0.20 × 0.96 = 9.60. With no wagering cost and no cap, the net EV is the full 9.60.
Now say a different operator credits 200 spins worth 1.00 each on the same 96% RTP slot, with no wagering requirement but a max cashout of 20. Gross value = 200 × 1.00 × 0.96 = 192 — a headline figure that sounds far more generous. But capped at a max cashout of 20, the net EV is only 20: a difference of 172 that the "200 free spins" number never mentions.
Frequently asked questions
Why does the max-cashout cap matter more than the RTP or the wagering requirement?
Because it's a hard ceiling, not a percentage. RTP and wagering requirements scale the value down gradually; a cap simply discards everything above it. A large number of spins or a high spin value can produce a gross value many times the cap, and none of that extra value is ever collectable — the cap decides the outcome regardless of how generous the spins looked.
What if there's no wagering requirement on the winnings at all?
Set the wagering requirement to 0. The calculator then treats the winnings as withdrawable immediately, so the wagering cost is zero and the net EV before any cap equals the gross value exactly.
What if the offer has no max-cashout limit?
Leave the max cashout field blank. The calculator then reports the net EV with no cap applied — though it's worth checking the operator's terms carefully, since almost all free spins offers carry some cashout limit even when it isn't advertised prominently.
