Vegas Insider Calculator
The Vegas Insider Calculator helps you quickly calculate potential profit, total payout, and implied probability for popular sports bets, including:
- Moneyline
- Point Spread
- Over/Under (Totals)
- Parlays
Whether you’re comparing odds or managing your bankroll, this tool gives you instant, accurate betting projections.
How the Vegas Insider Calculator Works
The calculator uses American odds (e.g., -110, +150) to determine:
- ✅ Potential Profit
- ✅ Total Payout (Stake + Profit)
- ✅ Implied Probability
- ✅ Combined Parlay Odds
Simply choose your bet type, enter the required details, and click Calculate.
1️⃣ Moneyline Bet Calculator
A moneyline bet is a straight wager on which team will win the game.
Example:
- Odds: -150
- Stake: $100
If the bet wins:
- Profit = $66.67
- Total Payout = $166.67
Formula Used:
For positive odds (+200):Profit=(Odds÷100)×Stake
For negative odds (-150):Profit=(100÷∣Odds∣)×Stake
Implied Probability Formula:
Positive odds:100÷(Odds+100)
Negative odds:∣Odds∣÷(∣Odds∣+100)
2️⃣ Point Spread Calculator
A point spread bet involves betting on a team to win by a certain margin.
Example:
- Spread: -7.5
- Odds: -110
- Stake: $100
If your team covers the spread:
- Profit = $90.91
- Total Payout = $190.91
- Implied Probability ≈ 52.38%
Most spread bets default to -110 odds, but you can adjust them.
3️⃣ Over/Under (Totals) Calculator
An Over/Under bet is a wager on whether the total combined points will go over or under the posted line.
Example:
- Total Line: 48.5
- Pick: Over
- Odds: -110
- Stake: $100
If correct:
- Profit = $90.91
- Payout = $190.91
The calculator also shows the implied probability based on the odds.
4️⃣ Parlay Calculator
A parlay combines multiple bets into one ticket. All legs must win.
How It Works:
- Each leg’s American odds are converted to decimal odds.
- Decimal odds are multiplied together.
- Final payout = Stake × Combined Decimal Odds.
Example:
- Leg 1: -110
- Leg 2: +150
- Stake: $100
The calculator:
- Converts each leg to decimal
- Multiplies them
- Shows combined American odds
- Displays profit, payout, and implied probability
Parlays offer higher payouts but carry higher risk.
Understanding Implied Probability
Implied probability shows the percentage chance of winning implied by the odds.
Examples:
- -110 ≈ 52.38%
- +200 ≈ 33.33%
- -200 ≈ 66.67%
Lower probability = higher potential payout.
Higher probability = lower payout.
Key Features
✔ Supports all major bet types
✔ Handles positive and negative American odds
✔ Converts parlay odds automatically
✔ Calculates implied probability
✔ Clean, user-friendly interface
✔ Instant payout breakdown
Example Betting Scenarios
You can calculate:
- $50 at +300
- $200 at -125
- 3-leg parlay (-110, +150, -120)
- Over 44.5 at -105
- Spread -3.5 at -110
Final Thoughts
The Vegas Insider Calculator makes it easy to evaluate betting opportunities before placing a wager. By understanding profit potential and implied probability, you can make smarter, more informed betting decisions.
Always remember: higher payouts come with higher risk. Use this calculator to compare options and manage your betting strategy effectively.