Advanced Betting Calculators

Professional-grade tools for smart betting decisions

Average ROI Target

2-5%

Professional betting standard

Kelly Fraction

25%

Recommended for most bettors

Max Bet Size

Of total bankroll per bet

Break-Even Win%

52.38%

At -110 odds

Parlay Calculator

Build parlays with correlation analysis & Monte Carlo simulations

Kelly Criterion

Optimize bet sizing for maximum bankroll growth

Expected Value

Calculate EV, ROI, and profitability across odds formats

Arbitrage

Find risk-free betting opportunities across sportsbooks

Round Robin

Create multiple parlays with comprehensive analysis

Betting Calculator Guide

1Parlay Calculator: Use for multi-leg bets with correlation analysis and simulation tools
2Kelly Criterion: Determine optimal bet sizes based on your edge and bankroll
3Expected Value: Identify +EV bets and calculate long-term profitability
4Arbitrage: Find guaranteed profit opportunities across different sportsbooks
5Round Robin: Create multiple smaller parlays to reduce variance

Track Everything

Record all bets to analyze performance over time

Set Limits

Never risk more than 5% of bankroll on a single bet

Focus on Value

Only bet when you have a genuine edge

Stay Disciplined

Stick to your strategy regardless of short-term results