Chips & Truths No spin. Just the math.

CRA 310: Odds Bet House Edge

A clear breakdown of the 0% house edge on craps odds bets, true odds payouts, and the risk players still carry.

CRA 310: Odds Bet House Edge
Point Value
House Edge 0% on the odds portion
Difficulty Medium
Skill Ceiling Medium

The odds bet in craps has 0% house edge because it pays true odds. That means the payout matches the actual dice risk after a point is established. But 0% house edge does not mean the bet is safe. Odds bets can be large, they lose with the line bet, and they increase your session swings.

Quick Facts

  • Odds bets are placed behind Pass Line, Come, Don’t Pass, or Don’t Come bets.
  • The odds portion pays at true odds: 2 to 1, 3 to 2, or 6 to 5 on right-side points.
  • The house edge on the odds portion alone is 0%.
  • The flat line bet still keeps its normal house edge.
  • More odds lowers the combined edge as a percentage of total action.
  • More odds also puts more money at risk per decision.
  • Casinos offer odds because players must first make a line bet and because variance still works.

Plain Talk

An odds bet is the cleanest math bet on the craps table. Once a point exists, you may put extra money behind your flat line bet. That extra money is not paid short. It is paid according to the actual ratio between the point and the 7.

That is why the odds bet is different from almost every other wager on the layout.

This page is about the house edge of the odds bet itself. For the beginner mechanics, read odds bet explained. For the full table, start with the craps guide. For probability by number, use craps odds and craps house edge.

The Wizard of Odds craps basics lists odds as a 0% edge bet, the Wizard of Odds craps appendix shows expected-return logic, and Wolfram MathWorld’s dice reference helps explain why two dice create 36 possible outcomes.

How It Works

After a point is established, the right-side odds bet wins if the point repeats before 7 and loses if 7 rolls first.

The payout depends on the point:

PointWays to Roll PointWays to Roll 7True Odds PayoutWhy It Has 0% Edge
4 or 10362 to 17 is twice as likely as the point
5 or 9463 to 27 is 1.5 times as likely as the point
6 or 8566 to 57 is 1.2 times as likely as the point

A fair payout does not mean an easy win. On point 4, the odds payout is generous because the bet loses twice as often as it wins.

Right-Side Odds Example

If the point is 5 and you place $20 odds behind your Pass Line bet, the odds portion pays 3 to 2.

  • Point 5 rolls first: odds win $30.
  • 7 rolls first: odds lose $20.
  • Other numbers: nothing happens to the odds bet.

The payout is fair because there are 4 ways to roll 5 and 6 ways to roll 7.

Don’t Odds Example

Don’t Pass and Don’t Come odds work in reverse. You are laying odds that 7 comes before the point. Because the 7 is favored, you risk more to win less.

Don’t PointYou LayTrue Odds WinBasic Meaning
4 or 10$40$20Risk 2 to win 1
5 or 9$30$20Risk 3 to win 2
6 or 8$24$20Risk 6 to win 5

The math is still 0% house edge on the odds portion because the payout matches the probability.

Craps Table Example

You buy in for $300 and make a $10 Pass Line bet. The come-out roll is 8. You take $20 odds behind your line bet.

The next rolls are 3, 9, 5, then 8.

Your $10 Pass Line bet wins $10. Your $20 odds bet on the 8 pays $24 because odds on 6 or 8 pay 6 to 5. Total profit is $34.

Now replay the same hand with a 7 before the 8. You lose the $10 flat bet and the $20 odds bet. A fair odds payout did not protect the $30 on the layout.

From the Casino Side:

The casino does not fear odds bets the way players think it does. The odds portion has no house edge, but it sits behind a flat bet that does have an edge. It also creates bigger swings, more emotional decisions, and more opportunities for the player to add weaker bets around it.

A floor supervisor may rate the flat bet differently from the odds portion because the odds portion has no theoretical win. A boxman watches that odds are placed correctly, paid correctly, and not moved late after the dice outcome is known. Surveillance checks whether the payout ratio matches the point.

The dealer’s job is not to explain the long-run math. The dealer’s job is to book the wager, cut the payout, and keep the game moving.

Common Mistakes

  • Thinking 0% house edge means the whole craps hand is break-even.
  • Taking odds larger than the bankroll can handle.
  • Forgetting that odds lose together with the flat line bet.
  • Treating the point 4 or 10 as attractive only because it pays 2 to 1.
  • Confusing odds bets with the general idea of craps odds.
  • Believing odds bets erase variance.
  • Ignoring table limits such as 2x, 3x-4x-5x, 10x, or higher odds.

Hard Truth

The odds bet is fair, not friendly. It removes the casino’s price from that extra wager, but it does not remove the dice, the 7, or your ability to overbet.

FAQ

What is the house edge on a craps odds bet?

The odds portion has 0% house edge because it is paid at true odds.

Does the odds bet make craps beatable?

No. You must pair it with a flat line bet that still has a house edge, and real sessions still have variance.

Why would a casino offer a 0% edge bet?

Because the player must first make a line bet, and because odds bets increase action, excitement, and volatility without turning the game into a player advantage.

Are odds bets better than Place bets?

Mathematically, yes. Odds bets have 0% edge. Place bets are paid short and carry a house edge.

Should beginners always take maximum odds?

Not always. Maximum odds is best by percentage, but it may be too large for a small bankroll.

Do Don’t Pass odds also have 0% edge?

Yes. Don’t odds are also true odds, but you lay more money to win less because 7 is favored over each point.

Is an odds bet a separate bet?

Yes, but it depends on the flat Pass Line, Come, Don’t Pass, or Don’t Come bet staying active.

Deeper Insight

The odds bet is where craps exposes the difference between price and risk.

Price is house edge. Risk is how much money can disappear before the dice cooperate.

The odds portion is priced fairly. The casino is not underpaying the outcome. But the player still faces point-specific probability. If the point is 4, there are 3 ways to make the 4 and 6 ways to roll 7. That is why the bet pays 2 to 1. It wins less often, so it pays more when it wins.

This is also why odds bets reduce combined house edge but increase volatility. A $10 Pass Line bet with $50 odds has a much better blended edge than a flat $10 Pass Line bet alone. But the player now has $60 exposed on one decision.

That is the part many beginners miss.

The bet is mathematically clean. The bankroll impact can still be rough.

Formula / Calculation

P(event) = favorable dice combinations / 36

True Odds Payout = Losing Combinations / Winning Combinations

Expected Value = (Probability of Win × Net Win) - (Probability of Loss × Stake)

House Edge = -Player EV / Initial Stake

For $10 odds on point 4:

Probability of winning = 3 / (3 + 6) = 1 / 3
Probability of losing = 6 / (3 + 6) = 2 / 3
Payout = 2 to 1
EV = (1/3 × $20) - (2/3 × $10)
EV = $6.67 - $6.67 = $0
House Edge = 0%

For $10 odds on point 6:

Probability of winning = 5 / (5 + 6) = 5 / 11
Probability of losing = 6 / 11
Payout = 6 to 5
EV = (5/11 × $12) - (6/11 × $10)
EV = $5.45 - $5.45 = $0
House Edge = 0%

Formula Explanation in Plain English

The payout is built to balance the chance of winning and losing. When the point is harder to roll, the payout is higher. When the point is easier to roll, the payout is lower. That balance is why the odds bet has no built-in casino edge.

Start with odds bet explained if you want the table procedure before the math. Then compare the combined cost on combined house edge with odds and the larger bet menu on craps odds. Use the craps odds calculator and house edge calculator for specific wagers. For the bankroll side, read craps variance and why low house edge does not mean safe.

Play smart. Gambling involves real financial risk. If the game stops being entertainment, it's time to stop playing.