Expected Value (EV) Calculator
Compare bookmaker odds to fair odds and instantly see if a bet has positive expected value.
Tip: Green EV means a profitable bet over the long run.
The positive EV calculator helps sports bettors find profitable betting opportunities by comparing bookmaker odds to fair odds. It displays the expected value in both dollar terms and percentage, making it easy to assess the edge on any wager.
A positive EV betting calculator is a tool designed to identify whether a bet has a mathematical edge. EV stands for Expected Value, and in betting, it represents the average return you’d expect from a wager if you placed it thousands of times.
A positive expected value (+EV) means that, over time, you'd be profitable with those kinds of bets. This is the same concept used by bookmakers to make money, but when reversed, it lets you turn the tables and beat them at their own game.
Most bettors guess. Sharp bettors use data. A betting EV calculator removes the guesswork and helps you quantify value.
It's especially helpful for:
- Identifying value bets
- Comparing multiple bookmaker odds
- Filtering out losing wagers over the long term
- Building long-term profitable strategies
Whether you’re betting on the NRL, AFL, NBA, or UFC, this tool helps ensure you're only placing bets with a statistical edge.
1. Enter the Odds:
Input the bookmaker's odds and the fair odds you believe reflect the true probability.
2. Click Calculate:
The calculator crunches the numbers to reveal the dollar EV and percentage EV.
3. Read the Results:
A positive EV suggests the bet is profitable in the long run. A negative EV means it's a losing bet over time.
Let’s say a bookmaker offers odds of 2.10 for a bet, and you believe the fair odds should be 1.90. Here's how it works:
- - Fair win probability = 1 / 1.90 = 52.63%
- - Bookmaker win probability = 1 / 2.10 = 47.62%
- - Expected Value = (52.63% × $1.10 profit) + (47.37% × -$1 loss) = +6.37%
That’s a +6.37% EV. Over time, bets like this add up to serious profits.
Expected Value (EV) is a statistical measure used to calculate the average result of a bet if it were placed an infinite number of times.
It’s a fundamental concept in both gambling and investing.
In sports betting, the expected value formula is:
(Probability of Winning × Profit if Win) + (Probability of Losing × Loss if Lose)
A positive EV sports betting calculator helps automate this process so you don’t need to do it manually for each bet.
+EV bets exist when there's a mismatch between the odds offered by a bookmaker and the true probability of an outcome.
This typically occurs due to:
- Bookmaker errors
- Slow or delayed odds movement
- Market overreactions
- Differences in models between books
These inefficiencies open the door for bettors to profit using tools like our EV bettingcalculator.
You’ll find both free and paid options online. A positive EV calculator free version like ours gives you the core functionality—calculate EV quickly and clearly.
Paid tools often include:
- Auto-pulled live odds from multiple bookmakers
- Filters for leagues, confidence levels, and bet types
- Bet tracking and bankroll recommendations
At WagerWise, our free calculator is just the start. Our premium tools identify profitable bets in real-time and send them directly to you.
Not all +EV bets are guaranteed winners. EV is about long-term outcomes, not short-term results. Many users misunderstand this:
- EV ≠ win every time
- Variance plays a big role in short streaks
- You still need a proper bankroll management system
But over hundreds or thousands of bets, the math always wins.
Finding +EV bets manually is extremely time-consuming. It requires constant monitoring of bookmaker odds, exchanges, and prediction models.
There are two proven methods:
- Betting Exchanges: Use exchange odds as the benchmark for “fair” prices
- Wisdom of the Crowd: Aggregate odds across multiple sharp books to determine the true probability
At WagerWise, we use the wisdom of the crowd method. Our software compares odds across dozens of bookmakers and identifies thousands of +EV bets daily.
Join now and start profiting with zero guesswork!While other tools charge hundreds for limited access, WagerWise delivers full +EV coverage, real-time updates, and Discord integration.
- Live +EV bets updated 24/7
- Arbitrage and middles included
- Integrated bankroll and bet tracking tools
- Free access to our Learning Zone with walkthroughs and calculators
Our positive expected value betting calculator is just the beginning. With WagerWise, you don’t just bet smarter—you bet with confidence.