How do I use a sports betting odds calculator?

Enter your bet amount and the odds (American, Decimal, or Fractional format) into the calculator. It will instantly show your potential payout and profit. Our free sports betting odds calculator works for all sports including NFL football, NBA basketball, and MLB baseball.

How do I convert American odds to decimal odds?

For positive American odds: Decimal = (American/100) + 1. For negative American odds: Decimal = (100/|American|) + 1. For example, +150 American = 2.50 Decimal, and -150 American = 1.67 Decimal. Use our free odds converter for instant conversions.

What is the best free parlay calculator?

SportsBettingOddsCalculator.com offers the best free parlay calculator online. Enter up to 15 legs with American, Decimal, or Fractional odds to instantly calculate your total parlay payout and implied probability.

How do I calculate my betting payout?

Use our bet payout calculator: enter your stake and odds. For American odds, if positive: Payout = Stake × (Odds/100) + Stake. If negative: Payout = Stake × (100/|Odds|) + Stake. Our calculator does this instantly for any odds format.

What is an odds payout chart?

An odds payout chart shows potential winnings at different odds levels. Our calculators provide dynamic payout charts for any stake amount, showing payouts for common odds like -110, +100, +150, -200, and more.

Betting Units to Dollars Converter

Convert betting units to dollars and track your profit in standardized units. Essential bankroll management tool for sports bettors to normalize results across different stake sizes.

Unit Setup

Configure your unit size

Total Bankroll ($)

Unit Type

Unit Size (%)

Quick Convert

Convert between units and dollars

Units → Dollars

Dollars → Units

Quick Reference

1u$--

2u$--

5u$--

10u$--

25u$--

50u$--

Performance Analysis

Track your betting record

Wins

Losses

Average Odds

What is a Unit in Sports Betting?

A unit is a standardized measure of bet size that allows bettors to track performance regardless of their bankroll size. Instead of saying "I won $150," you might say "I won 15 units" - which normalizes your results and makes them comparable to other bettors.

Why Track in Units?

Normalized Results

Compare performance across different bankroll sizes

Risk Management

Keeps bet sizes consistent relative to bankroll

Professional Standard

Industry standard for tracking and discussing results

Emotional Control

Reduces focus on dollar amounts during variance

Recommended Unit Sizes

Bettor Type	Unit Size	Reasoning
Conservative	1% of bankroll	Minimizes risk of ruin, best for beginners
Standard	1-2% of bankroll	Good balance of growth and risk management
Aggressive	3-5% of bankroll	Higher variance, faster growth or bust
Professional	1-2% with Kelly	Varies by edge using Kelly Criterion

Unit Tracking Best Practices

Be consistent: Use the same unit size for all standard bets
Recalculate periodically: Adjust unit size as bankroll grows/shrinks
Track everything: Record odds, sport, bet type for analysis
Don't chase: Never increase units to recover losses
Separate high-confidence plays: Some bettors use 2-3u for "max plays"

This calculator is for informational and educational purposes only. Results should be verified with your sportsbook before placing any wagers. All betting carries risk. Full Disclaimer