Kalshi odds explained: event contracts, fees and sportsbook comparison

The table above compares Kalshi's stored moneyline prices with the best stored sportsbook price on the same outcome for the next seven days. This guide explains what those Kalshi prices mean, what they cost to trade, and how to compare them fairly with sportsbook odds from DraftKings, BetRivers and theScore Bet.

Affiliate disclosure: Margus may earn compensation from some outbound operator links. Commercial relationships never change which stored price ranks as best. The fee-schedule links in this guide are direct informational sources.

What is Kalshi?

Kalshi is a US exchange for event contracts: contracts that pay out depending on whether a defined event happens. Sports markets, such as which team wins an NFL game or a Premier League match, sit alongside markets on economics, weather, politics and culture.

The important difference from a sportsbook is who sets the price. At a sportsbook, the operator publishes odds and takes the other side of your bet, building in a margin. On Kalshi, buyers and sellers post orders, and the price is wherever those orders meet. Kalshi earns its money from fees on trades rather than from the outcome of the event.

That structure is why Kalshi prices often sit close to, but not exactly on, sportsbook prices. Sometimes the exchange is sharper, sometimes the sportsbook is. That gap is what the Margus table measures.

How Kalshi contracts and pricing work

Most Kalshi contracts are binary. A "Yes" contract generally pays $1 if the stated outcome happens and $0 if it does not, subject to the market's rules. A "No" contract pays the reverse. Prices trade between 1 cent and 99 cents.

Because the payout is $1, the price doubles as an implied probability:

• 25 cents ≈ 25% implied probability
• 50 cents ≈ 50%
• 75 cents ≈ 75%

To turn a Kalshi price into the odds formats you see on sportsbooks, start from that probability. For a 60 cent contract:

• Decimal odds (common in the UK and Europe): 1 / 0.60 ≈ 1.67
• American odds (US): a favourite at 60% is about -150
• Fractional odds (UK): about 4/6

Our guide on how to read odds covers each format, and implied probability walks through the maths. Remember that the price you see is the last trade or the best current offer; buying a large amount may push you to worse prices further down the order book.

Kalshi fees

Kalshi's help centre says it charges a transaction fee on the expected earnings on a contract, that some markets have different fees (often around special events or major championships), and that some markets carry maker fees on resting orders that later execute. Kalshi also says there is no fee for cancelling a resting order. The full fee schedule and its formula are linked from that page: Kalshi Help Center: Fees.

In practical terms, fees mean the headline price is not your true cost. When you compare a Kalshi contract with a sportsbook price, add the fee to the Kalshi price before deciding which is better. A sportsbook's cost is already baked into its odds as vig; our vig guide explains how to measure it.

Availability and regulation

Kalshi appears on the US Commodity Futures Trading Commission's list of designated contract markets (CFTC: Designated Contract Markets). Federal designation does not settle every question. The treatment of sports event contracts has been the subject of ongoing legal and regulatory debate in several US states, and the position can change.

For readers in the UK and Europe, Kalshi is a US-regulated venue and access depends on Kalshi's own eligibility rules and your local law. Margus does not confirm eligibility for any location. Always check Kalshi's current terms and your local rules before opening an account, and treat any third-party summary, including this one, as a starting point rather than legal advice.

Pros and cons of Kalshi for sports

Pros:

• Exchange pricing. Prices come from participants, so they can be tighter than a sportsbook's margin on popular markets.
• Transparent payout. A $1 contract makes implied probability easy to read.
• You can exit early. Positions can usually be sold before the event if there is a buyer.
• Published fees and rules. Fee schedules and contract rules are public documents.

Cons:

• Liquidity varies. Smaller markets can have wide spreads or little size at the displayed price.
• Fees sit on top of the price. The cost is not built into the number the way vig is.
• Narrower sports menu. Expect fewer props and niche markets than a large sportsbook offers.
• Rules differ from sportsbooks. Overtime, draws, postponements and voids can be handled differently.
• Eligibility is limited. Access depends on location and account status.

How to compare Kalshi prices with sportsbooks on Margus

The table at the top of this page is built from prices Margus already stores. For upcoming NFL, NBA and soccer events in the next seven days where a Kalshi market maps cleanly to a Margus event, it shows the Kalshi price beside the best stored sportsbook price on the same outcome and flags which is better. If nothing maps, the table is hidden rather than estimated.

To use it well:

• Convert everything to one format. Read the Kalshi price as a probability and compare it with the sportsbook's implied probability. A lower implied probability on the side you want means a better price.
• Adjust for fees. Add Kalshi's fee to its price before comparing.
• Check the rules. Soccer is the classic trap: a sportsbook 1X2 market settles on 90 minutes plus stoppage time with the draw as its own outcome, so make sure the Kalshi contract defines the result the same way.
• Check the size. A better price for a few dollars is not the same as a better price for your full stake.
• Shop the whole market. Compare all the books on our odds pages, including NFL odds and soccer odds. Our line shopping guide explains why the best price matters over time.

How Margus maps events and picks the "best" price is set out in our methodology. For a wider look at the two models, read prediction markets vs sportsbooks, or see how Kalshi stacks up against its closest rival in Kalshi vs Polymarket.

Kalshi for football and US sports

For US sports, Kalshi's game markets generally line up with the moneyline: who wins the game, including overtime where the contract says so. That makes NFL and NBA moneylines the cleanest comparisons in our table.

For football (soccer), be more careful. A three-way market (home, draw, away) on a sportsbook is not the same as a two-way "will this team win" contract, because the draw outcome is handled differently. Margus only shows a comparison when the outcomes map, but it is still worth reading the contract rules before treating a soccer price as directly comparable.

Play responsibly

Trading event contracts and betting both involve risk of loss. Set limits, never chase losses, and only use money you can afford to lose. If gambling or trading stops being fun, find support through our responsible gaming page.