Roulette Street Bet Calculator: Betting Three in a Row

A street bet covers three consecutive numbers in a horizontal row. Our calculator shows exact probability, the 11:1 payout, and expected value for this inside bet that offers moderate coverage with reasonable payout.

What Is a Street Bet?

A street bet (also called trio or row bet) covers three numbers in a horizontal line on the layout. Place your chip at the edge of any row to win 11:1 if any of those three numbers hits. There are 12 possible street bets on the standard layout.

Quick Answer: Street bet covers 3 consecutive horizontal numbers (e.g., 1-2-3, 4-5-6). Pays 11:1. Probability: 8.11% (European), 7.89% (American). House edge: 2.70% (European), 5.26% (American). One of the inside bets offering balance between coverage and payout. Same edge as all roulette bets on that wheel.

How to Use Our Calculator

Use the Street Bet Calculator →

Enter your street bet to see probability and expected value.

Step-by-Step Instructions

1. Select Roulette Type: European or American

2. Choose Street: Which row of three

3. Enter Bet Amount: Your wager

4. View Probability: Win chance

5. Calculate EV: Expected value

Input Fields Explained

Field	Description	Example
Roulette Type	European or American	European
Street	Three numbers	7-8-9
Bet Amount	Your wager	$10
Numbers Covered	The row	7, 8, 9
Win Probability	Hit chance	8.11%
Expected Value	Per spin	-$0.27

Available Street Bets

The 12 Standard Streets

Street 1: 1-2-3
Street 2: 4-5-6
Street 3: 7-8-9
Street 4: 10-11-12
Street 5: 13-14-15
Street 6: 16-17-18
Street 7: 19-20-21
Street 8: 22-23-24
Street 9: 25-26-27
Street 10: 28-29-30
Street 11: 31-32-33
Street 12: 34-35-36

Each street is horizontal row
Chip placed at row edge

Special Zero Street (European)

0-1-2 street (sometimes called "trio"):
Covers 0, 1, and 2
Available on some layouts
Pays 11:1

0-2-3 street:
Another trio option
Covers 0, 2, and 3

These include zero = unique

Probability Analysis

European Roulette

Total pockets: 37 (1-36 + 0)
Street coverage: 3 numbers
Win probability: 3/37 = 8.11%
Lose probability: 34/37 = 91.89%

Payout: 11:1
Fair payout: (37/3) - 1 = 11.33:1

House edge: 2.70%

American Roulette

Total pockets: 38 (1-36 + 0 + 00)
Street coverage: 3 numbers
Win probability: 3/38 = 7.89%
Lose probability: 35/38 = 92.11%

Payout: 11:1
Fair payout: (38/3) - 1 = 11.67:1

House edge: 5.26%

Expected Value Calculation

European Street Bet

$10 bet analysis:

Win: 8.11% × $110 = $8.92
Lose: 91.89% × $10 = $9.19

Net EV: $8.92 - $9.19 = -$0.27

House edge: 2.70%
Same as all European bets

American Street Bet

$10 bet analysis:

Win: 7.89% × $110 = $8.68
Lose: 92.11% × $10 = $9.21

Net EV: $8.68 - $9.21 = -$0.53

House edge: 5.26%
Same as most American bets

Street Bet vs Other Inside Bets

Comparison Table

Bet Type      | Numbers | Payout | Win% (Euro) | Edge
--------------|---------|--------|-------------|------
Straight Up   | 1       | 35:1   | 2.70%       | 2.70%
Split         | 2       | 17:1   | 5.41%       | 2.70%
Street        | 3       | 11:1   | 8.11%       | 2.70%
Corner        | 4       | 8:1    | 10.81%      | 2.70%
Six Line      | 6       | 5:1    | 16.22%      | 2.70%

All inside bets = same edge
Choose based on preference

Street Position on Risk Spectrum

Risk/Reward scale:

Higher risk, higher reward:
- Straight up (35:1)
- Split (17:1)

Moderate:
→ Street (11:1) ←
- Corner (8:1)

Lower risk, lower reward:
- Six Line (5:1)
- Outside bets (1:1, 2:1)

Street Betting Strategies

Single Street Focus

Bet one street per spin:

$10 on 16-17-18
Win: +$110
Lose: -$10

Win rate: ~8%
Occasional nice hits
Mostly losses
Same 2.70% edge

Multiple Streets

Cover multiple rows:

$5 on 4-5-6
$5 on 10-11-12
$5 on 22-23-24
$5 on 34-35-36

Coverage: 12 numbers (32.43%)
Win: +$55 - $15 = +$40
Lose: -$20

Same as betting one column
No mathematical advantage

Progressive Street

Increase bet after losses:

$10, $20, $40, $80...

Problem:
8.11% win rate is low
Many consecutive losses likely
Table limits stop progression

Same 2.70% edge applies
Doesn't change math

Real-World Examples

Example 1: Basic Street Session

50 spins, $15 per street bet (European):

Expected wins: 4.05 (call it 4)
Expected losses: 45.95 (call it 46)

Wins: 4 × $165 = $660
Losses: 46 × $15 = $690

Net: -$30
Matches 2.70% edge

Example 2: Street vs Split Comparison

Same $30 budget covering same area:

Option A: $30 street bet on 7-8-9
Win: $330
Probability: 8.11%

Option B: $10 split on 7-8, $10 split on 8-9, $10 straight on 8
7 wins: $170
8 wins: $350 + $170 + $350 = $520 (overlapping)
9 wins: $170

More complex, same edge
Street is simpler

Example 3: Covering Third of Table

Four streets = 12 numbers:

$5 each on streets 1-2-3, 4-5-6, 7-8-9, 10-11-12

Coverage: Numbers 1-12
Same as first dozen bet!

If number 1-12 hits:
Street win: $55
Other street losses: -$15
Net: +$40

If 13-36 or 0 hits:
Lose $20

Compare to $20 dozen bet:
Wins $40, same probability
Identical bet, different form

Example 4: Hot Street Chasing

Street 31-32-33 hit twice recently:

Bet $50 on 31-32-33?

Reality:
Still 8.11% probability
Not "due" to hit again
Not "cold" either
Independent events

Previous results irrelevant
Same 2.70% edge

Common Mistakes

1. Thinking Streets Have Patterns

Mistake: "Row 7-8-9 is hot!" Problem: Each spin is independent Fix: Patterns are illusions

2. Street as "Safety" Bet

Mistake: "3 numbers is safer than 1" Problem: Same 2.70% edge Fix: All bets have same house advantage

3. Over-Betting Streets

Mistake: Large bets on single street Problem: 91.89% lose rate Fix: Size bets for losing streaks

4. Ignoring Table Type

Mistake: Play American when European available Problem: Double the house edge Fix: Always prefer European

Frequently Asked Questions

Which street is best to bet?

All 12 streets have identical probability and payout. No street is mathematically better than another.

Is street bet better than split or corner?

Same house edge (2.70% European). Street offers balance: more coverage than split, better payout than corner.

How often do streets hit?

About 8% of spins, or roughly 1 in 12. Long losing streaks are common and expected.

Can I bet multiple streets?

Yes, but you're just making multiple bets. Four streets = column bet mathematically.

Is there a street betting system that works?

No system changes the 2.70% house edge. All street strategies eventually lose the same percentage.

Should I avoid certain streets?

No—all streets have equal probability. Avoiding streets based on history is superstition.

Pro Tips

• European only: Half the edge of American

• All streets equal: Pick any by preference

• Moderate payout: 11:1 is mid-range inside

• Set loss limits: 8% win rate means many losses

• Consider corner instead: 4 numbers, similar feel

Related Calculators

• Roulette Odds Calculator - All bet types
• Roulette Corner Bet Calculator - Four numbers
• Roulette Split Bet Calculator - Two numbers
• Roulette Expected Value Calculator - EV analysis
• House Edge Calculator - Compare games

Conclusion

Street bets cover three consecutive numbers at 11:1 payout—a balanced inside bet between the extremes of single numbers and larger coverage bets. Our calculator shows exact probability and expected value for this popular wager.

Calculate Street Bet Odds Now →

The 8.11% win rate at 11:1 payout yields the standard 2.70% house edge. Our calculator confirms street bets are neither better nor worse than other roulette options—just another way to enjoy the game with three numbers at a time.