Tools

Calculators.

Fees, profit, odds, Kelly, and expected value. Nothing leaves your browser.

Fee calculator

Kalshi taker and maker fees

Contracts

Price (¢)

Order type

Fee

$1.75

% of trade

3.50%

Trade cost

$50.00

Profit calculator

Max payout if you are right

Contracts

YES price (¢)

Position

Cost

$30.00

Max profit

$20.00

ROI

66.7%

Odds converter

Cents → probability, decimal, American

Kalshi YES price (¢)

Implied

65.0%

Decimal

1.538

American

-186

Kelly calculator

Half-Kelly is the recommended stake

Bankroll ($)

True prob (%)

Market (¢)

Edge

+10.0%

Full Kelly

22.2%

Half Kelly

$111.11

EV calculator

Expected value of a YES trade

True prob (%)

Market (¢)

Contracts

EV / contract

+7.0¢

Total EV

+$7.00

Edge

7.0%