Kalshi break-even calculator

Pick a contract price. See the fee Kalshi charges, the hit rate you need just to break even, and what a trade actually costs, risks and pays.

How the math works

A Kalshi contract pays $1 if you are right and $0 if you are wrong, so at price P your gain is 1 − P and your loss is P. Kalshi's trading fee is 0.07 × P × (1 − P) per contract, largest around 50¢ (about 1.75¢) and near zero at the extremes. Break-even hit rate is simply P + fee: at 55¢ you need to be right 56.7% of the time. The last card shows how much better than the market's own odds you have to be, which is the only number that decides whether a strategy makes money.