What Does -110 Mean in Betting? Odds, Payouts and the Vig Explained

-110 means you bet $110 to win $100. You don't have to bet $110, of course. Bet $11 and you win $10, bet $10 and you win $9.09. If the bet wins, you also get your stake back, so a winning $10 bet returns $19.09.

That's really all you need to place the bet. But -110 is the price you'll see on almost every spread and total, so it's worth knowing why it's there and what it costs you over a season. It's also the reason so many people who pick "about half" of their games end up behind.

How to read -110 odds

-110 is an American odds number, the format every US sportsbook uses on its betting line. When there's a minus sign in front, the number tells you how much you'd have to risk to win $100. So -150 means risk $150 to win $100, and -200 means risk $200 to win $100. A plus sign works the other way: +150 means a $100 bet wins $150. We walk through both in how to read American odds.

For -110, just remember "risk 110, win 100" and you can do the rest in your head. If odds in general are still a bit of a mystery, start with our guide to how betting odds work.

What a -110 bet pays

To get the profit, divide what you bet by 1.1. A few common amounts:

The "total back" column trips people up. When a bet slip shows your payout, it usually means stake plus profit, not profit alone. Your $20 doesn't turn into $18.18. It turns into $38.18.

Where you'll see -110

Mostly on point spreads and totals (over/unders). Those lines are built so each side is close to a coin flip, and the book charges the same price on both.

Say the Chiefs are -3.5 against the Raiders and both sides are -110. Take the Chiefs and they have to win by 4 or more. Take the Raiders and they can lose by 3 or less, or just win the game. The 3.5 is there to make the two sides feel even, and then -110 goes on each one. If spreads are new to you, here's what the spread means in betting.

Totals are the same idea. With the total at 47.5, a bet on the over at -110 needs the two teams to score 48 or more between them.

You won't see -110 much on a moneyline, where you're only picking the winner. Moneylines follow how lopsided the game is, so you get numbers like -240 on a big favorite and +195 on the underdog.

Why it isn't -100: the vig

If a bet really is 50/50, the fair price would be even money: bet $100, win $100. That's -100, sometimes written +100. The extra 10 in -110 is the sportsbook's cut. You'll hear it called the vig, the juice or the vigorish, and they all mean the same thing.

Here's how it pays the book. Two people bet the same game, one on each side, $110 apiece at -110. The book takes in $220. The winner gets $210 back (their $110 plus $100). The book keeps $10, and it doesn't care who won.

That $10 is about 4.5% of everything bet on the game. It's also why lines move during the week. A book would much rather have even money on both sides and collect its fee than sweat a result.

Why you need 52.4% to break even

This is the part most new bettors never hear. Because you risk more than you win, going 50/50 at -110 loses money. You need to win 52.4% of your bets just to break even.

The math is the odds' implied probability: 110 ÷ (110 + 100) = 0.524. Go 10-10 betting $110 a game and you've won $1,000 and lost $1,100. You're down $100 with a .500 record. If you want the longer explanation, it's in implied probability in betting.

Win 55% and you're ahead. That sounds like a small gap, but it's the whole game. Very few people hold 55% over a full season, which is why we'd rather you learn it with a free balance than with rent money.

-110 in decimal and fractional odds

Same bet, different notation. In decimal odds -110 is 1.91, so you multiply your stake by 1.91 to get your total back. In fractional odds it's 10/11: win 10 for every 11 you bet. The conversions are in decimal odds to American odds and fractional odds explained.

A few related numbers people ask about

+1.5 and +7. Those are spreads, not odds. +7 means that team gets 7 points added to its score for your bet, and a +1.5 team covers if it wins or loses by 1. The price on them is usually -110.

-105, or "reduced juice." Some books charge -105 on spreads instead of -110. Your break-even drops to 51.2%, and over a few hundred bets that's real money.

+EV. Short for positive expected value: a bet where your real chance of winning is better than the price says. At -110, that's a bet you'd expect to win more than 52.4% of the time.

-110 in a parlay. Each -110 leg multiplies the payout. Two legs pay about 2.6 to 1 and three pay about 6 to 1. More on that in how much a 3 team parlay pays.

Try it without risking your own money

The fastest way to get comfortable with -110 is to place a few bets and watch them settle. On Paid2Bet you can bet spreads and totals with a free balance, and your slip shows exactly what you'd get back before you confirm. Start on the NFL board, or have a look at the betting rules first.

Paid2Bet is for players 21 and over. If betting ever stops being fun, call or text 1-800-GAMBLER for free, confidential help.