Casino Comp-Rate Calculator

Casino comps are not free — they're a refund of about 30% of your theoretical loss. This calculator tells you exactly how much you're earning your host, what comp value you should get back, and your true net cost of the trip after comps.

Theo loss

$40

Expected comp

$12

Net cost

$28

What casinos actually track

Your player card records: average bet × hands per hour × hours played × house edge = theoretical loss (theo). Casinos comp roughly 30% of theo back as rooms, food, free play, and limo service. The other 70% is the casino's expected profit from your visit.

The math

theo = average bet × hands per hour × hours × house edge

comp = theo × 0.30 (industry-typical rate)

$25 average bet × 80 hands/hour × 4 hours × 0.5% BJ edge = $40 theo. Expected comp value: $12. So a 4-hour BJ session earns you about $12 in comps — about a buffet entry, not a free room.

Higher comp rates exist

What comps are actually worth

A $300 'free' room at a casino that costs $90 to operate is comping you $90, not $300. Mentally discount comp face value by 30-50% to get the real economic value to you. The casino is happy because they keep the rest of your $200 theo.

FAQ

What's a typical casino comp rate?

About 30% of theoretical loss is the industry-standard rate. Slots run higher (35-40%), video poker lower (20-25%). High-limit play at major properties can negotiate to 40%+ for serious action.

Are comps actually free?

No. Casinos comp roughly 30% of your theoretical loss. The 70% they keep is more than the cost of the rooms, food, and shows they comp back. Net, you're losing money — comps just slow it.

How do I increase my comp rate?

Always use your player card. Play longer sessions at higher average bets. Build a relationship with a host. Push for offers around your trip dates rather than booking blind.

Why don't card counters get high comps?

Counters track to a near-zero or negative theo loss in the casino's system. Some advantage players deliberately bet flat to inflate their tracked theo so they earn comps that subsidize their actual edge.

Should I chase comps?

Only if you'd be playing anyway. Playing longer just to earn comps is a guaranteed loss — you'll lose more in expected value than the comp is worth back to you.

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Last updated 2026-05-06. Spot an error?