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Percent and cents
to real odds

Novig shows prices as a percentage. Kalshi and Underdog's single team picks show cents. Enter the price and what you'll spend to see the payout, the fees and the sportsbook odds it matches.

Sportsbook odds
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Contracts
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You pay (with fees)
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Pays if right
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Profit if right
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Break-even chance
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Enter the price as a percentage (60%) or in cents (60¢ or 0.60). Everything is worked out in your browser. Nothing is saved or sent.

How it works

60¢ price+38¢ if right
$0Pays $1.00 if right, $0 if wrong$1
One contract at 60¢ with a 2¢ fee: 62¢ in, $1 back if it wins. Break-even is 62%, about -163.

The price is also the market's guess at the chance: 60% (or 60¢) means about 6 times in 10. Your return is your stake divided by the price, so $100 at 60% returns about $166.

NovigShows 60%No fee on pre-game straight picks. Live picks that take a price pay a small fee (reported 3% × P × (1 − P)).
UnderdogShows 60¢Prediction Picks add an exchange fee per contract. Its own example uses 2¢.
KalshiShows 60¢Standard fee 7% × P × (1 − P), rounded up per order. Highest near 50¢.

Quick table

PriceSportsbook odds$100 returns
20%+400$500.00
25%+300$400.00
33.3%+200$300.30
40%+150$250.00
45%+122$222.22
50%+100$200.00
52.4%-110$190.84
55%-122$181.82
60%-150$166.67
66.7%-200$149.93
75%-300$133.33
80%-400$125.00

Before fees. Underdog's Pick'em (Higher or Lower on player stats) still uses fixed multipliers; this page covers its single team picks. Sources: Novig odds calculator, Underdog Prediction Picks overview, OddsShopper on Novig and Kalshi fees.

Questions

Why does Novig show percentages now?

Novig became a federally regulated exchange in 2026, and regulated exchanges quote contracts as prices between $0 and $1. Novig shows that price as a percentage: the market’s implied chance the outcome happens. 60% is the same as a 60¢ contract or about -150.

How do I work out the payout on a percentage?

Divide your stake by the percentage. $100 at 40% returns $250 ($150 profit). At 60% it returns $166.67. The lower the percentage, the bigger the payout.

How do Underdog’s single team picks work?

Underdog’s Prediction Picks are event contracts, not pick’em multipliers. Each contract costs its price (65¢ means about a 65% chance) plus an exchange fee, and pays $1 if you’re right. Underdog’s help center gives the example of 5 contracts at 70¢ plus a 2¢ fee each: $3.60 in, $5.00 back if it wins.

Do fees change the real odds?

Yes. Your break-even chance is the price plus the fee. A 50¢ contract with a 2¢ fee needs a 52% win rate, which is close to a -110 sportsbook line. Pre-game straight picks on Novig have no fee, so a 50% price there really is even money.

Can I sell before the game ends?

Usually, at whatever the market pays at that moment, which can be more or less than you paid. This calculator covers holding to the end.

More tools

Sweepstakes sportsbooks and prediction markets →

These calculators do math, not predictions. No price is a sure thing: sites can change lines, cancel picks made at a wrong price, limit accounts, or close markets before you place the other side. Never stake money you need, and never treat picks or trading as a way to make money. 21+. Gambling problem? Call or text 1-800-GAMBLER. Play responsibly.