Kalshi Probability Converter
Convert Kalshi prices to implied probabilities, decimal odds, and American odds. Understand what any Kalshi price really means before you trade.
Quick Answer
this converter turns a Kalshi price into its implied probability, decimal odds, and American odds in one step. Kalshi prices are already probabilities in cents — a 65¢ contract is a 65% implied probability, or 1.54 in decimal odds — so it just restates the same number in whichever format you need.
MUST-KNOW FIRST
Kalshi prices in plain English · Free
What is this?
On Kalshi, every market trades in cents. A market priced at 37¢ means the crowd thinks there's a 37% chance the event happens. That's it. This tool converts back and forth so you don't have to do the math.
Think of it like reading a weather forecast. "30% chance of rain" = 30¢ on the rain market. If you think rain is actually 60% likely, that 30¢ market is underpriced — that's your edge.
Real-World Example
→ The Market Says
Kalshi has "Fed cuts rates in June" trading at 42¢. You plug that into the Probability Converter. It tells you the market implies a 42% probability.
You watch the Fed press conference and hear Powell hint strongly at cuts. You think it's actually 65%. The gap between 42% and 65% is your edge window.
✅Action: Buy YES at 42¢. You think it's worth 65¢. That's 23 cents of potential profit per contract.
Bottom line: Learn this one first. Every other tool builds on it.
Full guide →0–100, where 65¢ = 65%
European format (1.00 = no payout)
Negative = favorite, positive = underdog
Implied Probability
65.0%
Market's implied chance
Fair Value Est.
65.0%
After estimated vig removal
Est. Vig / Juice
~2.5%
Platform's edge estimate
How to Read Kalshi Prices
Kalshi uses a simple cent-based pricing system that directly encodes probability. A contract trading at 65¢ means the market collectively believes there is a 65% implied probability of that event occurring. If it does, the contract settles at $1.00, returning 35¢ profit. If it does not, the contract expires worthless and you lose your 65¢ stake. This linear pricing model makes Kalshi far easier to reason about than traditional sportsbooks, where the relationship between price and probability is obscured by vig-heavy American or decimal formats.
The connection to decimal odds and American odds becomes relevant when comparing Kalshi to traditional sports betting markets or international prediction platforms. A 65¢ Kalshi price is equivalent to decimal odds of 1.538 — meaning you multiply your stake by 1.538 to get the total return. In American odds format, this is roughly -186, indicating a fairly heavy favorite. Cross-referencing across formats lets you spot pricing discrepancies between Kalshi and sports books — a core edge for sharp traders.
Understanding vig and fair valueis the difference between recreational and professional prediction market trading. Every market embeds a small platform fee into the bid/ask spread. When you buy a YES contract for 65¢ and the true fair probability is 67%, Kalshi captures that 2¢ difference as revenue. This tool estimates the vig baked into any Kalshi price so you can compare the market price to what a fair, devigged probability would look like — helping you identify whether you're getting value or overpaying for implied probability.
Frequently Asked Questions
How do I convert a Kalshi price to a probability?
Kalshi prices are already implied probabilities expressed in cents. A contract trading at 65¢ represents a 65% implied probability. To convert to decimal odds, divide 1 by the probability (1 / 0.65 = 1.538). To convert to American odds for a favorite, use -(probability / (1 - probability)) × 100.
How do I read Kalshi prices compared to American sportsbook odds?
A Kalshi price of 65¢ is equivalent to approximately -186 in American odds. A Kalshi price of 40¢ is equivalent to +150. The converter handles this automatically — enter the Kalshi price in cents and get the American odds, decimal odds, and devigged fair probability instantly.
When should I use the Probability Converter before trading on Kalshi?
Use it whenever you want to compare a Kalshi market to a traditional sportsbook price, or when you want to understand the true fair probability after removing the platform vig. It is especially useful for sports prediction markets where you have a reference price from DraftKings or FanDuel to compare against.
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