Kalshi payout calculator: profit, fees and break-even

Enter the price you would pay for a YES or NO contract, your size, a manual fee estimate, and your own probability. Calculate profit, cash at risk, break-even and expected value, then share a prefilled scenario.

Quick answer: a Kalshi payout estimate starts with contracts times $1 if the trade is right, then subtracts your entry cost and fee estimate. The break-even price is total cost divided by contracts, shown in cents. This calculator keeps the math visible and lets you copy a clean summary or prefilled scenario link.

Inputs

Contract price paid

Cents per $1 payout

Contracts

Each winning contract pays $1

Estimated total fees

Manual estimate in dollars

Your probability

Your fair probability estimate

Scenario

Resolves right Resolves wrong Close at price

Close or settlement price

Cents received per contract

Estimate only. This page does not pull live Kalshi quotes, does not know the current Kalshi fee schedule, and does not include taxes, rebates, slippage, partial fills, or order-book depth. Not financial, tax, or legal advice.

Results

Net result in selected scenario$0.00

Total cash at risk$0.00

Net profit if right$0.00

Implied probability0.0%

Break-even after fees0.0c

Gross payout if right$0.00

EV at your probability$0.00

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Useful next reads

Kalshi guide Regulation, settlement, fees, eligibility, and risk checks Markets hub Tickers, rules, source checks, and market structure Slippage Estimate execution cost and effective entry price Current articles Browse the source-gated public article set

How the calculator works

For a standard binary contract that pays $1 when your side is right, gross payout equals contracts times $1. Entry cost equals price in dollars times contracts. The tool subtracts your manual fee input to estimate net profit, and uses your probability input only for the EV estimate.

The calculator does not read your Kalshi account or live market data. A shared scenario link contains only the numeric fields and selected outcome shown on this page. Always check the exact market rules because settlement can depend on a named source and product-specific terms.

Official sources reviewed July 17, 2026

Kalshi: What are prediction markets? for the standard $1 winning-contract explanation.
Kalshi: Market Rules for contract-specific criteria and outcome sources.
Kalshi: Market Outcomes for determination and official-source timing.
Kalshi: current fee schedule because fees and product exceptions can change.

Kalshi payout calculator FAQ

How do you calculate a Kalshi payout?

For a standard binary contract that pays $1 when your side is right, gross payout is the number of winning contracts times $1. Estimated net profit subtracts entry cost and the fee amount you enter.

Does this calculator know current Kalshi fees?

No. Kalshi fees and product-specific terms can change. Enter a fee estimate manually and verify the current official Kalshi fee schedule before relying on the result.

What is break-even price after fees?

This tool divides entry cost plus your fee estimate by the number of contracts, then displays that amount in cents per contract.

Can I share a prefilled calculator scenario?

Yes. Use Copy scenario link to create a URL containing the numeric inputs and selected scenario. The link does not include an account, position, or personal identifier.