The vig, short for vigorish and also called the juice, is the built in commission a sportsbook charges by pricing both sides of a market so their implied probabilities add up to more than 100 percent. That excess, known as the overround, is the books theoretical edge. This calculator takes the odds on both sides of a two way market, converts them to implied probabilities, and reports the total overround, the vig percentage and each sides fair probability once the margin is removed. Comparing the vig across books shows you where the sharper, lower cost lines are. Enter American or decimal odds for each side to break down the margin. Everything is calculated in your browser.
The vig, short for vigorish and also called the juice, is the built in commission a sportsbook charges by pricing both sides of a market so their implied probabilities add up to more than 100 percent. That excess, known as the overround, is the books theoretical edge.
Yes. Vig Calculator is completely free, with no sign-up and no usage limits.
Yes. Vig Calculator runs in any modern web browser. There is nothing to download or install.
Yes. Vig Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.