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To play craps, follow the total of two six-sided dice and whether a point has been established. A Pass Line bet wins on a come-out roll of 7 or 11 and loses on 2, 3, or 12. Any other total establishes the point: 4, 5, 6, 8, 9, or 10. That point must then repeat before a 7 for Pass Line to win.
These are common rules, not a guarantee of identical conditions at every table. Check local rules, payouts, and limits before betting. One official example is the Singapore Gambling Regulatory Authority's MBS craps rules listing, where MBS Version 4 took effect on October 17, 2025, at 09:00. That approved rule set applies to one venue; limits and some payouts vary by table.
How does a complete round work?
A Pass Line round ends either on the come-out roll or, once a point is established, when the point repeats or a 7 appears. Other totals after the point do not resolve that line bet.
- Place the line bet before the come-out roll. Pass Line and Don't Pass have opposing win conditions, with an important exception for 12 on the come-out roll.
- Check the come-out total. Pass Line wins on 7 or 11 and loses on 2, 3, or 12. Don't Pass wins on 2 or 3 and loses on 7 or 11. Under the standard 12-push rule, Don't Pass returns the stake on 12 with no profit.
- If the total is 4, 5, 6, 8, 9, or 10, note the point. For example, a come-out total of 6 establishes point 6. Neither line bet has been resolved yet.
- Optionally add Free Odds after the point is established. This is a separate additional wager. The table determines its maximum stake. On the Pass Line side, it wins under the same condition as the line bet.
- Follow subsequent rolls. With point 6, totals of 2, 3, 4, 5, 8, 9, 10, 11, and 12 leave Pass Line and Don't Pass unresolved.
- Resolve the round when the point or 7 appears. If 6 repeats first, Pass Line wins and Don't Pass loses. If 7 appears first, it is a seven out: Pass Line loses and Don't Pass wins.
For a complete example, a sequence of 6, 9, 4, 6 establishes point 6, leaves the line bets unresolved on 9 and 4, then ends with a Pass Line win. A seven out can happen only after the point is established; a come-out 7 instead wins for Pass Line.
How do common craps bets differ?
The main differences are which results resolve each bet and when its sequence begins. Pass Line and Don't Pass start with the table's come-out roll. Come and Don't Come begin their own sequence on the roll after you place them.
The house edges below are mathematical expectations under the stated payout schedules, not forecasts for a session. House edge expresses the expected loss as a percentage of the wager.
| Bet | When and how it resolves | House edge and assumption |
|---|---|---|
| Pass Line | Come-out: 7/11 wins; 2/3/12 loses. After a point: the point must repeat before 7 | 1.41%, assuming standard 1:1 profit |
| Don't Pass | Come-out: 2/3 wins; 7/11 loses; 12 pushes. After a point: 7 must appear first | 1.36%, assuming standard 1:1 profit and a push on 12 |
| Come | Placed after the table point is established. The next roll acts like a Pass Line come-out roll or establishes this bet's own point | 1.41%, assuming standard 1:1 profit |
| Don't Come | Placed after the table point is established. The next roll acts like a Don't Pass come-out roll or establishes this bet's own point | 1.36%, assuming standard 1:1 profit and a push on 12 |
| Free Odds | Added after a point is established; on the Pass Line side, wins if the point repeats before 7 | 0% for this component only, when paid at true odds |
| Place 6 / 8 | While the bet is working, the selected number must appear before 7 | 1.52%, under the standard payout schedule |
| Place 5 / 9 | While the bet is working, the selected number must appear before 7 | 4%, under the standard payout schedule |
| Place 4 / 10 | While the bet is working, the selected number must appear before 7 | 6.67%, under the standard payout schedule |
Come and Don't Come can have their own point, different from the table point. A Place bet is tied to its selected number rather than the Pass Line win condition. Check the table's rules for when these wagers are working.
House edges are rounded to two decimal places where needed. Wizard of Odds' craps analysis provides detailed standard-bet mathematics, but it does not replace a venue's rules.
How do Free Odds and payouts work?
Pass-side Free Odds pay at true odds for the established point. Their zero house edge applies only to that additional component, not to the Pass Line bet or the combined wagers.
| Point | Winning profit on pass-side Free Odds |
|---|---|
| 4 or 10 | 2:1, meaning two units of profit per unit wagered |
| 5 or 9 | 3:2, meaning three units of profit per two units wagered |
| 6 or 8 | 6:5, meaning six units of profit per five units wagered |
Profit is not total return. Total return on a win includes both profit and the returned stake. For example, a 10-unit Pass Line bet paying standard 1:1 profit earns 10 units of profit and returns 20 units in total.
The table sets the maximum Free Odds stake. A multiplier from one example does not apply to every table. Adding Free Odds increases the amount at risk and does not remove the line bet's house edge.
What is the probability of each dice total?
For one roll of two fair six-sided dice, there are 36 equally likely ordered outcomes. The number of outcomes producing a total determines its single-roll probability, not the probability of winning a bet over an entire round.
| Total | Outcomes out of 36 for each listed total | Single-roll probability of each total |
|---|---|---|
| 2 or 12 | 1 | 2.78% |
| 3 or 11 | 2 | 5.56% |
| 4 or 10 | 3 | 8.33% |
| 5 or 9 | 4 | 11.11% |
| 6 or 8 | 5 | 13.89% |
| 7 | 6 | 16.67% |
Percentages assume fair dice and are rounded to two decimal places. Each paired row gives the probability of each individual total, not their combined probability. These values describe probabilities, not predictions; earlier rolls do not change the next roll's probabilities.
After point 6 is established, only 6 and 7 resolve the line bet. Other totals delay resolution. There are five outcomes producing 6 and six producing 7, so the probability that 6 repeats before 7 is 5/11, or 45.45%, assuming fair, independent rolls and rounding to two decimal places. This is a resolved-bet probability after point 6, not the chance of rolling 6 next.
How do you use the ToolsGambling craps calculator?
The craps payout calculator lets you select a main bet, enter its stake, and view modeled results. A separate Free Odds panel uses the point and multiplier to calculate the additional stake and its winning profit.
Full desktop craps calculator with Pass Line selected, main stake 10, modeled results, and a separate Odds panel showing point 6, multiplier 5, wager 50, and winning profit 60
Desktop capture of the local build; production rendering was not verified.
Use this reproducible example: Pass Line with a 10-unit main stake, point 6, and a Free Odds multiplier of 5.
- Open the calculator with the example parameters.
- Select “Pass Line” in the main bet selector.
- Enter 10 in the main stake field. This is the Pass Line stake only, excluding Free Odds.
- Select point 6 and multiple 5 in the separate Odds panel. In this first-party 3x-4x-5x odds example, the additional stake for point 6 is 50 units.
- Read each component separately. The main calculation displays modeled profit, total return, true odds where defined, house edge, and win probability. The separate Odds panel calculates the additional stake and its winning profit.
The following values apply only if the established point 6 repeats before 7. Stakes are in hypothetical units; the displayed winning amounts are exact for these stakes and payout ratios, so no monetary rounding is needed.
| Component | Stake | Profit if it wins | Total return if it wins |
|---|---|---|---|
| Pass Line | 10 | 10 at standard 1:1 profit | 20, including the returned stake of 10 |
| Free Odds | 50, using multiple 5 on the main stake of 10 | 60 at 6:5 for point 6 | 110, including the returned stake of 50 |
Mobile Odds panel with point 6, multiplier 5, maximum 5x, Odds wager 50, winning profit 60, 0% house edge, and 6:5 true odds
Mobile capture of the local build, not production; production rendering was not verified.
These are conditional winning payouts, not guaranteed returns. If 7 appears before point 6, both wagers lose. Other tables may set different Free Odds limits.
The calculator performs deterministic mathematical calculations. It is not a game, dice simulator, randomness test, or predictor. Its results do not confirm that a particular stake is permitted at a real table.
Frequently Asked Questions
Check the table's rules and limits first. Place a Pass Line bet before the come-out roll: 7 or 11 wins, while 2, 3, or 12 loses. A 4, 5, 6, 8, 9, or 10 establishes the point. The bet then wins if that point repeats before a 7.
On the come-out roll, Don't Pass wins on 2 or 3, loses on 7 or 11, and pushes on 12 under the standard 12-push rule. After a point is established, Don't Pass wins if 7 appears before the point.
A seven out is a roll of 7 after a point has been established. Pass Line loses and Don't Pass wins. A 7 on the come-out roll is not a seven out.
When paid at true odds, the separate Free Odds component has a 0% house edge. That does not apply to the Pass Line bet or make the combined wagers risk-free. The table sets the maximum Free Odds stake.
No. It calculates mathematical results for the selected wager. It does not play craps, simulate dice rolls, test randomness, or predict results.
Evgeniy Volkov
Verified ExpertFullstack developer with a background in mathematics. I build the calculators and game-style tools on ToolsGambling with Pixi.js and modern web tech, and every result uses transparent probability formulas you can verify yourself.