Even-money bet pon a French table: p an payout nuh change, EV −1.35%, σ ≈ 0.99.

Roulette maths · Reference · 5 minute

Table a di odds an probability inna roulette

Evry standard bet wid it probability, payout, expected valuemathsExpected valueDi average result pon evry bet inna di long run. −1/37 a di stake fi evry standard European bet.Read di whole ting → an standard deviation.

Short ansa

All di bet dem have di same expected value, −2.70% a di stake. Di only difference a di probability an di spread.

bet pon di list

EV, all bet

−2.70%

σ range

1.00 to 5.84

call bet

2.70% too

Ow fi read dis roulette odds chart

ProbabilitymathsProbabilityDi chance fi a result, fram 0 to 1 or 0% to 100%. One numba: 1/37 = 2.70%.Read di whole ting → tell yuh ow often yuh win; di payoutmoney mattaPayoutWah a bet weh win gi yuh back, weh dem quote as “X to 1” on top a di stake weh come back.Read di whole ting →, weh people call di roulette odds, tell yuh ow much; σ tell yuh ow rough di ride go be. Di EV column a di same pon evry row by design, suh di table a really a menu a variancemathsVarianceA measure a ow wide di result dem spread roun di expected value. High fi straight up, low fi even-money bet.Read di whole ting → at one fix price.

betcoverp(win)payσ fi evry $1

Straight up1/372.70%35:15.84

Split2/375.41%17:14.09

Street3/378.11%11:13.28

Corner4/3710.81%8:12.84

Six line6/3716.22%5:12.23

Dozen12/3732.43%2:11.39

Column12/3732.43%2:11.39

Even money18/3748.65%1:11.00

EV a −$0.027 fi evry $1 pon evry row.

Call bet

Sectorpon di wheelSectorA piece a di wheel weh di pocket dem follow one anodda roun di arc, nuh a group pon di betting layout.Read di whole ting → bet a mix a standard bet, an dem carry di same edge. Each one have it own payout shape cause di chipmoney mattaChipA token weh stand fi a fix amount, weh yuh put pon di betting layout fi mek a bet. Nex name: check.Read di whole ting → dem nuh spread out even.

call betchipcoverp(any hit)net pon a hit (unit)EV fi evry unit

Neighbour dem (5)55/3713.51%+31−2.70%

Jeu zéro47/3718.92%+14 or +32−2.70%

Orphelins58/3721.62%+13 or +31−2.70%

Tiers du cylindre612/3732.43%+12−2.70%

Voisins du zéro917/3745.95%+9 or +15−2.70%

Expected value a di call bet dem

Ova nuff spin

Di probability fi get at least one hit inna k spin, fi a few question weh people ask nuff.

betinna 10 spininna 37 spininna 100 spin

Straight up24.0%63.7%93.5%

Split42.6%87.1%99.6%

Corner68.1%98.6%> 99.9%

Dozen98.0%> 99.9%> 99.9%

Zero (dat one alone)24.0%63.7%93.5%

1 − (1 − p)ᵏ.

Di spread a a session

Di standard deviationmathsStandard deviationDi square root a variance; ow far a result usually deh fram di expected value.Read di whole ting → a a 100-spin session at $10 flat, bet by bet, wid di same expected result fi all a dem: −$27.

σ a 100 spin at $10$

Straight up

$584

Split

$409

Street

$328

Corner

$284

Six line

$223

Dozen / column

$139

Even money

$100

0292$584

Question dem

Wah mek di EV a di same pon evry row?

Cause evry payout a 36/n − 1 gainst a fair 37/n − 1. Look pon di house edgemathsHouse edgeDi part a evry stake weh di casino keep pon average: 2.70% inna European roulette.Read di whole ting → page.

Weh la partage deh?

Even-money betbet demEven-money betRed/black, odd/even, high/low. 18 numba, pay 1:1.Read di whole ting → pon a French table: p an payout nuh change, EV −1.35%, σ ≈ 0.99.

Unu have a table fi di American wheel?

Divide by 38 instead a 37 an di EV column tun −5.26% pon evry row, −7.89% fi di five-numba bet.

Sumting fi laugh

$Nine bet, one expected value, an nuh memory.$

Nine bet, one expected value, an nuh memory.

Source dem

Ethier, S. N. The Doctrine of Chances: Probabilistic Aspects of Gambling. Springer, 2010. Chapta 13, roulette.

wi check it 2026-09-28model: European wheel, single zeroow wi work it out ↗source dem ↗