Kalshi Odds Converter: Kalshi Prices to American Odds

A Kalshi price in cents is the market's implied probability, and it converts straight into betting odds: 55 cents is −122 in American odds and 1.82 in decimal odds. The Kalshi odds converter below does the math both ways and shows the odds you really get once Kalshi's taker fee is added.

Kalshi Odds Converter

Type a Kalshi price in cents to get American, decimal, and fractional odds. Or type odds in any format to find the matching Kalshi price. The panel underneath adds the taker fee, which is the number to compare against a sportsbook.

Kalshi stopped showing American odds in its app on August 31, 2026, so this conversion is now a step you do yourself. The rest of this guide shows the formulas, a full conversion table, and how the fee changes what a Kalshi price is worth.

How to Convert Kalshi Prices to American Odds

Every Kalshi contract settles at $1 if the event happens and $0 if it does not. The price you pay is your stake, and $1 minus the price is what a winning contract adds on top. That makes the conversion a single formula per format.

Implied probability is the price itself. A 40 cent contract is a 40% chance.

Decimal odds are 100 divided by the price in cents. A 40 cent contract is 100 / 40 = 2.50.

American odds depend on which side of 50 cents you are on:

• Below 50 cents (an underdog): +(100 − price) / price x 100. At 40 cents that is +60 / 40 x 100 = +150.
• Above 50 cents (a favorite): −price / (100 − price) x 100. At 55 cents that is −55 / 45 x 100 = −122.
• At exactly 50 cents: +100, even money.

Read the 55 cent example the way a sportsbook would. You risk 55 cents to win 45 cents, which is the same as risking $122 to win $100. If the conversion itself is new to you, the implied probability guide walks through the same math for sportsbook odds.

Kalshi Odds Conversion Table

The first four columns are the straight conversion. The last column adds Kalshi's taker fee, which is the price you really pay if you buy at the quoted price with a market order.

Two rows are worth a second look. A 33 cent contract is +203, not the +200 you might round to. And a 50 cent contract stops being even money once the fee lands: it plays like −107.

Why Kalshi No Longer Shows American Odds

Kalshi used to offer an American odds view next to its prices. On August 7, 2026, CFTC staff issued a letter telling prediction markets to stop presenting event contracts in American style sportsbook odds, and Kalshi removed that view from its app on August 31, 2026.

Kalshi told customers that the markets and prices themselves did not change, only the way they are displayed. Prices now show in three formats:

• Cents, the contract price, which is also the implied probability.
• Percentage, the same number written as a chance.
• Multiplier, the payout shown as a multiple of what you put in, which reads much like decimal odds.

None of those is the format most US bettors compare with, which is why a converter is now the fastest way to put a Kalshi price next to a sportsbook line.

How to Read Yes and No Prices

Every Kalshi market has a Yes side and a No side, and the two sum to about $1. If Yes trades at 55 cents, No trades at about 45 cents, which is +122 in American odds before fees.

The quoted price is not always the price you get. Kalshi runs an order book, so there is a bid (what buyers will pay) and an ask (what sellers want). Buying Yes right away fills at the ask, so convert the ask, not the midpoint or the last trade. A 2 cent spread between bid and ask is already a 2 point hit to your break even.

What Kalshi's Fee Does to the Converted Odds

Kalshi's published taker fee is 0.07 x price x (1 − price) per contract, rounded up to the cent on the order total. The fee is charged when your order fills, not only when you win.

On a 55 cent contract the fee is 0.07 x 0.55 x 0.45 = 1.73 cents. Your all in cost is 56.73 cents, so you need the event to happen 56.73% of the time just to break even. In American odds, that 55 cent contract really costs about −131, not −122.

The fee is largest at 50 cents (1.75 cents) and shrinks toward both ends of the range, which is why the gap in the table above is widest near even money. A resting limit order, which Kalshi calls a maker order, pays much less or nothing, depending on the market. The full cost comparison, including maker orders and effective hold, is in Kalshi vs sportsbook.

Comparing a Kalshi Price to a Sportsbook Line

Always compare the all in Kalshi price to the sportsbook price, never the quoted one. Here is an illustrative example of why.

Say Kalshi shows Yes at 55 cents and a sportsbook has the same outcome at −130.

• Quoted Kalshi price: −122, which looks clearly better than −130.
• All in Kalshi price after the taker fee: −131 (56.73% break even).
• Sportsbook at −130: 56.52% break even.

On the quoted price Kalshi looks 8 points better. After the fee, the sportsbook is slightly cheaper. The numbers here are illustrative, and live prices and fees change, so check both before you trade. Any single bet or contract can still lose.

Kalshi is also useful as a reference even when you do not trade there. Our study of MLB player props found Kalshi to be one of the sharpest price sources in that market. Comparing a sharp price to a sportsbook line is the idea behind no vig fair odds and positive EV betting, and the Odds Screen lines up book prices side by side so you can spot the gaps.

Converting Futures and Long Shot Contracts

Futures and long shot contracts convert with the same formula, and the fee matters less the further you get from 50 cents. A championship contract at 22 cents converts to +355. After the 1.20 cent taker fee, it plays like about +331.

That is the price to line up against a sportsbook's futures board. For how two sided prediction markets change futures pricing, see how prediction markets changed futures betting. For the wider picture of how event contracts work, start with prediction market betting explained.

Frequently Asked Questions

How do you convert Kalshi odds to American odds?

Divide the Kalshi price into the payout. Below 50 cents, American odds are +(100 minus price) / price x 100, so 40 cents is +150. Above 50 cents, American odds are −price / (100 minus price) x 100, so 55 cents is −122. At exactly 50 cents the price is +100, even money.

Does Kalshi show American odds?

Kalshi no longer shows American odds. After a CFTC staff letter in August 2026 asked prediction markets to stop using sportsbook style odds, Kalshi removed the American odds view on August 31, 2026. Prices now display in cents, as a percentage, or as a multiplier, so converting to American odds is up to you.

What does a 55 cent price on Kalshi mean?

A 55 cent Yes contract means the market prices the event at about a 55% chance. The contract pays $1 if the event happens and $0 if it does not, so you risk 55 cents to win 45 cents. That is −122 in American odds and 1.82 in decimal odds, before fees.

Do Kalshi fees change the odds?

Kalshi fees make the real odds worse than the quoted price. The published taker fee is 0.07 x price x (1 minus price) per contract, which is 1.73 cents on a 55 cent contract. The all in cost becomes 56.73 cents, so the 55 cent price really plays like −131, not −122.

Is a Kalshi price the true probability?

A Kalshi price is the market's implied probability, not a guaranteed true probability. It carries no bookmaker margin, but the bid and ask spread and the trading fee still sit on top of it. Treat it as a sharp estimate to compare against, not a prediction of the result.

More Prediction Market Tools

The standalone Prediction Market Converter handles both Kalshi and Polymarket prices, and the Polymarket odds converter covers Polymarket's own quirks. For comparing the two exchanges on fees and sharpness, read Polymarket vs Kalshi. To convert between sportsbook formats, use the odds converter or the betting odds converter guide. Developers who want Kalshi prices as odds in code can start with the prediction market odds API guide.