How to Convert Odds. On this page you'll be able to convert your odds using our odds convertor across the three different formats, hassle-free. For sports fans that want to convert various odds across online sports betting sites or exchanges manually, whether it's American football or tennis, these are the basic formulas. Convert Fractional Odds & Decimal Odds. Get real-time scores, betting lines, and betting odds for all your favorite sports. American Odds are the default odds at American sportsbooks. These odds are based on winning $100 for a given bet. Betting a Favorite: The odds for favorites will have a minus (-) sign, and represent the money you need to risk to win $100. So if you're betting on the Packers at -140 against the Vikings, that means Green Bay is a slight favorite. Our odds page gives you lines from a variety of sportsbooks to make sure you’re getting the best price no matter what you want to bet. The best lines will be highlighted in green and update in real time. Use the filter odds tab to look at spreads, over/unders or moneylines. You can also filter by state to show sportsbooks available in your area.
Computational notes
The odds ratio (OR), its standard error and 95% confidence interval are calculated according to Altman, 1991.
The odds ratio is given by
with the standard error of the log odds ratio being
and 95% confidence interval
Where zeros cause problems with computation of the odds ratio or its standard error, 0.5 is added to all cells (a, b, c, d) (Pagano & Gauvreau, 2000; Deeks & Higgins, 2010).
Test of significance: the P-value is calculated according to Sheskin, 2004 (p. 542). A standard normal deviate (z-value) is calculated as ln(OR)/SE{ln(OR)}, and the P-value is the area of the normal distribution that falls outside ±z (see Values of the Normal distribution table).
Literature
- Altman DG (1991) Practical statistics for medical research. London: Chapman and Hall.
- Altman DG, Deeks JJ, Sackett DL. Odds ratios should be avoided when events are common [letter]. BMJ 1998;317:1318.
- Deeks JJ, Higgins JPT (2010) Statistical algorithms in Review Manager 5. Retrieved from https://training.cochrane.org/handbook/statistical-methods-revman5
- Kirkwood BR, Sterne JAC (2003) Essential medical statistics, 2nd ed. Oxford: Blackwell Science.
- Pagano M, Gauvreau K (2000) Principles of biostatistics. 2nd ed. Belmont, CA: Brooks/Cole.
- Parshall MB (2013) Unpacking the 2 x 2 table. Heart & Lung 42:221-226.
- Sheskin DJ (2004) Handbook of parametric and nonparametric statistical procedures. 3rd ed. Boca Raton: Chapman & Hall /CRC.
- Where to Bet:
How to read NBA Las Vegas Odds
The point-spread was developed to provide a balance for both teams involved in a contest to attract bettors to potentially back the weaker team and receive points. The two squads in a game are listed with a title, either a favorite or an underdog. The favorite is usually the perceived better team in the game, as backing them means giving up several points.
The favorite is always listed with a minus (-) sign before the point-spread while the underdog is labeled with a plus (+) label.
Ex. Favorite -10, Underdog +10
On the VegasInsider.com odds page, there is another number associated with the favorite and its listed as -10. This number is simply defined as “vig” or what many in the sports betting industry call vigorish. Another common term is called “juice” and it’s technically the price the bettor has to pay on a straight wager.
Ex. Bet $110 to win $100 (10% juice)
Ex. Bet $100 to win $91.91 (10% juice)
It's not uncommon to see other values posted other than -10. Examples seen on the NBA Vegas Odds pages could include -08, -12, -15 and -20. The -10 price is the most common value in the industry while many books offer reduced 'juice odds' and that would fall into the -08 category.
The lower-juice sportsbooks are normally found outside of the state of Nevada. If you are in a state where sports betting is legal, please check out our online sportsbook directory to find the best and most secure places to make NBA bets.
Another number that’s posted on the NBA Las Vegas is the total or ‘over/under’ for the specific matchup. If the favorite is designated as the home team, then the total will be listed above and vice versa if the visitors are favorites.
All of the above numbers are listed next to the teams, and before each matchup is a Rotation number. The NBA Las Vegas Odds are listed in order of rotation and those numbers are generated and produced by the sportsbooks. Above each matchup and rotation is the Time of the game, which is subject to change. All game times are Eastern Standard Time.
Online Odds Comparison
NBA Open Line
One of the best features on the NBA Vegas Odds is the Open Line. This numbers consists of the first betting line received from one of our Las Vegas or Global Sportsbooks. The opening line varies depending on the sportsbook but it provides a clear-cut rating that the oddsmakers use. If you’re betting on the NBA or any other sport, it’s a great idea to view the open line first.
VI Consensus NBA Line
The VegasInsider.com Consensus NBA Line is just as important as the Open Line and also a key resource on odds platform. The Consensus column could be called a “Median Line” since it shows the most consistent number provided by the sportsbooks on VegasInsider.com. The consensus line will be the same as the open line but once the wagers start coming in, this number is often different than the openers.
Betting on NBA Games
Where can I bet on NBA games?
There are several legal sportsbook options in the United States. Visit our sportsbook directory to find online sportsbooks where you can bet on the NBA.
Who are the experts picking to win?
Our experts offer picks on all the big NBA games. Check out our 2020 NBA Playoff Predictions or our NBA game picks to see what our handicappers are saying.
What type of bets can I make on NBA games?
Betting the point spread, straight up winner, and over/under point total are the three popular NBA bets. Sportsbooks also first half lines, live betting, and other betting angles.
Who's the favorite to win the NBA Championship?
For odds on where teams will finish in the NBA Playoffs, check out our NBA Futures page.
Reference
Can you place parlay bets on NBA games?
Most sportsbooks will allow you to parlay your baskteball bets, meaning you can bet on multiple odds and win a bigger payout if they all win. Check out our parlay calculator to see what your payout will be.
Online Odds Converter
