Kalshi payout calculator
Estimate position cost, maximum cash payout, profit if correct, maximum loss, fee-adjusted break-even probability, and expected value from your own probability.
Calculate payout and riskHome > Tools
Free Kalshi calculators for payout and slippage
Plan a Kalshi event-contract order with two browser-based tools: one for payout, risk, break-even probability, and expected value; another for order-book depth, average fill, slippage, and all-in entry cost.
Quick answer: Start with the payout calculator when you know the intended price and contract count. Add the fee displayed by Kalshi. Then use the slippage calculator if the visible quantity at the best price cannot fill the whole order. Neither tool uses live prices or submits orders.
Kalshi slippage calculator
Enter visible order-book levels to estimate weighted average fill, price slippage, slippage dollars, unfilled quantity, and whether the effective entry still leaves an edge.
Calculate slippageCurrent Kalshi fee guide
Read the July 7, 2026 event-contract formulas, official table examples, maker exceptions, funding costs, and the separate warning for perpetual futures.
Check the fee schedule guideWhich Kalshi tool do you need?
| Question | Payout calculator | Slippage calculator |
|---|---|---|
| How much cash is at risk? | Yes | Shows the cost of modeled fills |
| What is the maximum $1 settlement payout? | Yes | No |
| What is fee-adjusted break-even probability? | Yes, using the fee you enter | Shows a fill-price threshold |
| Can the full order fill at the best quote? | No | Yes, when you enter order-book depth |
| What is the weighted average entry price? | Uses one price | Yes |
| Does it fetch live Kalshi data? | No | No |
| Does it place an order? | No | No |
Use the calculators together
- Read the contract rules first. A correct calculation cannot repair a wrong interpretation of the settlement condition or source.
- Record the intended price and contract count. Use the payout calculator for the basic binary-contract economics.
- Enter the displayed order-ticket fee. The current fee can depend on instrument, series multiplier, and whether an order takes or provides liquidity.
- Inspect order-book depth. If the quantity at the top quote is smaller than your order, copy the relevant levels into the slippage calculator.
- Replace the ideal price with the modeled average fill. Recalculate the all-in position and compare it with your own probability estimate.
- Check the live ticket again. Prices, available quantity, and fees can change between planning and submission.
Primary sources checked July 17, 2026: Kalshi Fee Schedule, Kalshi Help Center: The Orderbook, and Kalshi Help Center: Limit Orders. The sources explain the current fee framework and order mechanics; the calculators perform only the arithmetic from values you provide.
What these calculators cannot know
A static calculator cannot know whether your probability estimate is sound, whether a market will remain liquid, whether a queue position will fill, or whether the rules match your intended event interpretation. It also cannot guarantee the current fee for every series. The live order ticket, order book, contract rules, and designated settlement source remain authoritative for a specific order.
Frequently Asked Questions
Which Kalshi calculator should I use?
Use the payout calculator for position cost, maximum payout, profit if correct, break-even probability, and expected value. Use the slippage calculator when an order can fill at multiple prices and you need an effective entry cost.
Do these Kalshi tools use live market prices?
No. You enter the price, contract count, fee, and order-book levels yourself. The tools do not connect to an account, fetch a private portfolio, or submit an order.
How should I include Kalshi fees in a calculation?
Read the fee shown on the current order ticket and enter it in the payout calculator. Static articles cannot know every current series multiplier, maker rule, or future schedule change.
Can a Kalshi calculator tell me whether to trade?
No. A calculator can make assumptions and arithmetic visible, but it cannot validate your probability estimate, interpret the contract rules, or guarantee a fill or outcome.
Related guides
Kalshi guide and risk overview · Markets research hub · Ticker and source guide · Resting orders explained · Payout math guide
Educational estimates only. The tools do not pull live Kalshi prices, access an account, submit orders, or write to external services. Kalshi View is independent and not affiliated with Kalshi Inc. Trading involves risk, and you can lose money.