House edge calculator

What this calculator does

One job: turn a named floor bet into a clear cost figure you can compare before you buy in.

1. 1You pick a game and a betAmerican roulette, European roulette, craps lines/props, or baccarat Banker / Player / Tie.
2. 2You get the house edge %Long-run expected loss as a percent of each unit under the rules on that row — not tonight’s result.
3. 3You see a $100 unit costSame math as dollars: 5.26% → about $5.26 average cost per $100 flat bet if you could play forever at that unit.

How to use it

Five taps — then compare bets before you sit.

1. Choose the game. Tap American roulette, European roulette, craps, or baccarat.
2. Choose the bet. Pick the line, prop, or main wager from the list (Pass, Banker, even-money, and so on).
3. Read the house edge %. That percent is the long-run expected loss on each unit under the stated rules.
4. Check the $100 unit cost. Use it to size entertainment money — not as a promise for one spin or roll.
5. Compare on the ladder. Scroll the full table (works without JavaScript) to rank bets from cheapest to most expensive.

Worked examples

Static results from the same calculator math — readable without JavaScript. Standard Vegas floor rules.

1. Example 01

   American roulette even-money

   Double-zero wheel · red / black / even / odd / high / low

   House edge 5.26% (fraction 2/38). On a $100 unit the average cost is about $5.26 per bet — two greens beat those even-money lanes.

2. Example 02

   American five-number basket

   0-00-1-2-3 basket · pays 6:1

   House edge 7.89% (3/38). Worse than every other standard American bet — skip if you are shopping for lower cost.

3. Example 03

   European roulette even-money

   Single-zero wheel · standard payoffs

   House edge 2.70% (1/37). About half the American even-money cost. Confirm one green on the wheel before you buy in — most Vegas pits still run 0/00.

4. Example 04

   Craps Pass line

   Pass line only · no free odds counted

   House edge 1.41% (7/495). ~$1.41 per $100 line unit. Free odds behind the line are 0% on the odds chips; the line bet keeps this edge.

5. Example 05

   Craps Don’t Pass (bar 12)

   Don’t Pass · 12 barred on the come-out

   House edge 1.36% (27/1980). Slightly cheaper than Pass on the line unit alone — still entertainment math, not a system.

6. Example 06

   Craps Any seven

   One-roll proposition · pays 4:1

   House edge 16.67% (6/36). ~$16.67 per $100 unit — among the most expensive common props. Line + odds is the usual cheaper path.

7. Example 07

   Baccarat Banker (5% commission)

   Eight-deck shoe · standard third-card · commission table

   House edge about 1.06% after commission. Player about 1.24%. Main bets beat Tie for cost.

8. Example 08

   Baccarat Tie at 8:1

   Optional Tie · pays 8:1

   House edge about 14.36%. Flashy payout, steep cost — treat as capped entertainment money or skip on a first session.

Not in this calculator

• ✕Slot or video-poker RTP by cabinet — Nevada does not publish honest per-machine returns we can keep current.
• ✕Blackjack rule matrices and basic-strategy edges — strategy-dependent; separate tool later.
• ✕No-commission baccarat, 9:1 Tie, French La Partage, or other felt variants — confirm the table in front of you.