This guide answers the question What pays 30 to 1 in craps? and puts the answer into a practical calculator-first context. It explains which one-roll bets commonly pay 30:1, why that payout creates a sizable house edge, and gives step-by-step formulas and worked examples you can copy into a spreadsheet. If you want a quick read, the opening section states the short answer and the calculator walkthrough later provides reproducible examples you can use to size bets and estimate expected loss.

Single-roll bets on 2 and 12 are commonly paid at 30 to 1 on standard tables.

A 30:1 payout on a 1/36 outcome implies about a 13.89 percent house edge.

Convert payout phrasing to a net profit multiple before you plug numbers into a calculator.

Quick answer: which craps bets pay 30 to 1?

Short definitive statement, craps payouts calculator

The single-roll proposition bets on 2 (snake eyes) and 12 (boxcars) are the wagers that are commonly paid at 30 to 1 on standard craps table layouts; that payout appears on most published pay tables for one-roll bets Wizard of Odds one-roll bets.

Those bets resolve on a single dice throw and are distinct from multi-number combo bets, which may include a 30:1 component for 2 or 12 but split the stake across outcomes instead of placing a straight one-roll wager.

Because this article is calculator-first, the first worked examples assume the usual 30:1 posting for 2 and 12, but always check the table’s posted payout schedule before using any calculator to size a real stake.

Check posted payouts and calculate EV on the Funded Plays Challenges page

Use the calculator walkthrough below to enter a stake, a clear payout convention and the probability so you get an accurate expected value for any one-roll bet.

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On many physical layouts and rulesheets the single-roll spots for 2 and 12 include a 30:1 label near the proposition area; regulator and casino rulesheets often reproduce that pay schedule so it is visible before you bet BCLC craps rulesheet.

If a table posts something different, treat the posted schedule as authoritative and plug those numbers into the calculator formulas below rather than assuming the standard 30:1.

Single-roll proposition bets are wagers that win or lose on the next dice roll only. Typical examples are bets on totals such as 2, 3, 11 and 12, or specific combinations like any craps or a hard way; the key point is they resolve in one roll and pay according to the table’s posted odds Wizard of Odds one-roll bets.

With two fair six-sided dice, the counts of combinations for totals determine probability. A total of 2 or 12 occurs in 1 out of 36 possible combinations each, while totals of 3 or 11 occur in 2 out of 36 combinations each; these standard dice probabilities are the basis for any payouts/EV calculation Wolfram MathWorld dice.

Because the likelihoods are fixed by combinatorics, the advertised payout determines the long-run expectation: if a casino pays less than the fair multiple implied by the inverse probability, the house retains an edge, which is what a payouts calculator helps you quantify.

Fair odds for an event are the inverse of its probability; for a 1/36 event, fair net profit per unit would be 35 to 1 if a bet paid exactly fair odds, but casinos commonly post 30:1 for 2 and 12 which is less than the fair 35:1 and creates the house edge Wizard of Odds one-roll bets.

compute expected value for a single-roll bet in a spreadsheet friendly way

Payout here is net profit multiple for a win

Use a simple expected value (EV) formula: EV = probability*(net profit on win) + (1-probability)*(net loss on loss). For a payout listed as 30:1 and probability 1/36, the per-unit expected loss works out to 5/36, which is about a 13.89 percent house edge on that wager Wizard of Odds one-roll bets.

To see the arithmetic verbally, if you stake 1 unit you win 30 units with probability 1/36 and lose your stake with probability 35/36. Expected value = (1/36)*30 + (35/36)*(-1) = 30/36 - 35/36 = -5/36, or approximately -0.1389 units per unit staked.

For comparison, single-roll payouts often list 15:1 for 3 and 11 with probability 2/36, which produces a smaller but still positive house edge of about 11.11 percent when you run the same EV arithmetic on those figures Wizard of Odds one-roll bets.

Payout phrasing can be confusing because casinos use both "to 1" and "for 1" terminology. In practice, both describe the net profit multiple provided you apply the convention consistently: a 30:1 payout listed "to 1" usually means a 1 unit stake returns 30 units profit plus the original stake, but you can treat the payout number as the net profit multiple in calculator formulas if you handle stake return separately Wizard of Odds odds to vs for.

Example: a $10 bet on 2 at 30:1 yields $300 profit under a 'to 1' reading and also returns the original $10, for a total cash return of $310. If a rulesheet phrases the payout differently, convert the posted language into a net profit multiple consistently before you plug numbers into a spreadsheet.

When you build the payouts/EV calculator, include an explicit input for payout convention or convert the posted phrasing to a single numeric Payout field representing net profit on a win. That avoids confusion about whether to add the stake back in the calculation because the EV formula above uses net profit on win and full stake as the loss on failure.

Close up of two dice mid roll on a blurred craps table layout with Funded Plays dark color palette and subtle accents no text or logos craps payouts calculator

Combo bets like the Horn and C&E split a single posted stake over several totals. Only the portion placed on 2 or 12 receives the 30:1 payout when that total wins; the remaining portions are resolved on whichever totals they cover and pay according to those numbers Wizard of Odds Horn bet.

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For example, a Horn bet typically splits one unit into quarters across 2, 3, 11 and 12 (or uses another convention depending on house rules), so the amount on 2 that would earn 30:1 is only the quarter stake, not the whole bet.

Because the stake is divided, the effective EV of the combined bet is the weighted sum of the EVs for each portion; the 30:1 component contributes its EV scaled by the fraction of the stake on 2 or 12, and the other parts contribute their EVs too, producing a combined negative expectation unless a posted table pays above fair odds.

Always compute EV for a split stake by applying the same EV formula to each portion and summing the results so you do not over-attribute the 30:1 payment to the entire stake.

At minimum the calculator needs three explicit inputs: Stake, Payout (as net profit multiple), and Probability for the target outcome. Make a fourth optional input for payout phrasing or split-stake fractions so users can enter Horn-style bets without ambiguity Wolfram MathWorld dice.

Use clear labels: Payout (net profit) means the number you multiply by stake on a win, Probability is expressed as a decimal, and Stake is in currency units. Require the user to confirm whether the posted payout includes stake return or not so the calculator treats numbers consistently.

Core formulas you can implement in a spreadsheet are straightforward. NetProfitOnWin = Payout * Stake. EV = Probability * NetProfitOnWin - (1 - Probability) * Stake. TotalReturnOnWin = Stake + NetProfitOnWin if you need a cash-return number. These formulas match the calculator spec and work the same whether the payout is labeled 'to 1' or 'for 1' as long as Payout represents net profit on win.

For split bets implement the same formula per portion and sum the resulting EVs. Also include validation to flag unusually large or small payout numbers that are likely a posting error so users check the table before committing funds.

Start with the straightforward single-roll example. Inputs: Stake = $10, Payout = 30 (net profit multiple), Probability = 1/36 (0.0277777778). Net profit on win = 30 * 10 = $300. Total cash return on a win (if you return the stake) = $310. Expected value = 0.0277777778 * 300 - 0.9722222222 * 10 = 8.33333334 - 9.722222222 = -1.388888882, or roughly -$1.39 per $10 bet, consistent with a -13.89 percent edge Wizard of Odds one-roll bets.

Interpreted as a percentage, that EV means a long-run expected loss of about 13.89 percent of whatever stake you place on repeated identical one-roll 30:1 wagers.

What pays 30 to 1 in craps?

Single-roll proposition bets on totals 2 and 12 typically pay 30 to 1 on standard craps tables, but always confirm the posted pay schedule before betting.

Take a Horn that splits a $10 posted stake evenly across 2, 3, 11 and 12, so $2.50 is on each total. If 2 hits you receive the 30:1 payout only on the $2.50 placed on 2. Net profit on the winning portion = 30 * 2.50 = $75. The other portions lose their $7.50 combined stake. Total net result = 75 - 7.5 = $67.5 profit plus any stake return rules applied by the house Wizard of Odds Horn bet.

To compute long-run EV for the Horn, compute EV for each $2.50 portion using its probability and payout then sum the four EVs. That yields a combined negative EV because the 30:1 payment on the two single-combination totals does not fully offset the house advantage on the other splits under standard pay tables.

Payout schedules appear on the physical table layout, near the dealer area, and in official casino rulesheets or local regulator publications. When available, regulator-published rulesheets are a reliable source to confirm the standard pay schedule for one-roll bets BCLC craps rulesheet.

If you are unsure, ask the dealer to point to the posted pay table before placing a one-roll wager; do not rely on memory or generalizations when a nonstandard pay table could materially change your EV calculations.

If a table posts a different payout than the standard 30:1 for 2 and 12, use the posted payout directly in the calculator and re-run EV calculations. A small change in payout significantly changes the edge, so treating the posted schedule as authoritative is critical to accurate math.

Minimalist 2D vector laptop spreadsheet showing a highlighted EV cell for a one roll bet craps payouts calculator in Funded Plays color palette

Single-roll proposition bets like 2 and 12 typically have much higher house edges than common line bets such as the pass line or come bets. Line bets generally offer a lower house edge at the cost of lower variance, while one-roll bets are high variance with larger house edges, making them speculative plays rather than steady holds for minimizing long-term loss Wizard of Odds craps overview.

Because single-roll bets resolve immediately, they create large outcome swings for small stakes. Players should view them as occasional, high-variance options rather than core plays if the objective is minimizing expected loss.

Use the calculator to translate per-bet EV into an expected dollar loss over a planned number of bets.

One of the most frequent mistakes is misinterpreting 'to' versus 'for' conventions and then double-counting or omitting the stake when computing returns. Always convert the posted language to a net profit multiple before performing EV arithmetic to avoid this error Wizard of Odds odds to vs for.

Rounding prematurely is another common trap: carry sufficient decimal precision, especially for probabilities like 1/36, until the final display value so you do not accumulate small errors that matter over many calculated bets.

When a bet divides across outcomes, failing to compute EV per portion leads to inflated expectations. Always treat split bets as a set of smaller, independent wagers and sum their EVs to find the combined expectation. Also, ensure spreadsheet cells make the same assumptions about stake return to keep results consistent.

Treat single-roll proposition bets as speculative. A conservative approach is to limit any one-roll stake to a small fraction of your total bankroll so that a run of losses does not deplete funds intended for lower-edge plays. Use the calculator to translate per-bet EV into an expected dollar loss over a planned number of bets.

For example, if EV per $10 bet at 30:1 is about -$1.39, ten identical bets produce an expected loss of about $13.90. Adjust stake size or number of bets until the expected loss over your planned session fits your risk tolerance.

Decide an acceptable expected loss for a session, then divide that figure by the EV per unit from the calculator to determine the maximum stake or number of bets. This is risk management, not a guarantee of outcomes, and it helps keep speculative one-roll wagering aligned with your broader bankroll plan Wolfram MathWorld dice.

Properties sometimes vary payouts because of local practice, house policy or regulatory allowance; published rulesheets illustrate these standard and variant schedules and should be consulted to confirm what a particular table will pay BCLC craps rulesheet.

When in doubt, use the posted payout for EV calculations; do not assume the standard 30:1 if the layout shows a different number or if the dealer indicates an alternate convention for combo bets.

If you plan to play in a new jurisdiction, consult the local regulator or casino's rulesheet to confirm one-roll payouts. Those documents are the best way to establish the authoritative pay schedule for EV calculations and can be especially helpful when casinos offer nonstandard table layouts.

Quick reference: 2 and 12, payout typically 30:1, probability 1/36. 3 and 11, payout typically 15:1, probability 2/36. Use those pairs as the first entries when building a manual spreadsheet or a calculator template Wizard of Odds one-roll bets.

One-line EV reminder: EV per unit = Probability * Payout - (1 - Probability) * 1, where Payout is the net profit multiple for a win; convert probabilities to decimals and Payout to net profit before you calculate.

Find the one-roll proposition area on the layout, note the posted payout language, translate it to a net Payout number and the correct Probability, then run the EV formula or paste the spreadsheet formula from the Tool block into your sheet for a quick per-bet expected loss estimate.

Conclusion and next steps: using the calculator and verifying table rules

Summary of key takeaways

In standard practice, single-roll bets on 2 and 12 are the wagers that pay 30 to 1 on many craps tables and rulesheets, and that payout implies a roughly 13.89 percent house edge based on the 1/36 probability for each total Wizard of Odds one-roll bets.

What to check before placing one-roll bets

Before you bet, confirm the posted payout and convert phrasing to a net profit multiple, plug the numbers into the calculator formulas provided here, and size your stake with the expected loss and your bankroll plan in mind.

Which craps bets typically pay 30 to 1?

Single-roll proposition bets on 2 and 12 typically pay 30 to 1 on standard tables, but always verify the posted payout at the table you are playing.

How does a 30:1 payout translate into expected loss?

With probability 1/36 for 2 or 12, a 30:1 payout produces an expected loss of 5/36 per unit staked, about 13.89 percent over many trials.

How should I handle Horn or split bets in a calculator?

Treat split bets as separate smaller wagers, compute EV for each portion using its probability and payout, then sum the results to get the combined EV.

Use the calculator formulas and examples here as a template, but always verify the posted table payout where you play. Treat single-roll proposition bets as speculative and size stakes so expected loss fits your session plan.