Two calculators I built because I needed them and kept getting the arithmetic wrong in my head. They run in your browser, nothing is stored, and there is no signup.
Profit and loss at expiry for calls, puts, spreads, covered calls and iron condors, with the payoff drawn out.
Tick values, profit and loss, and position size for 25 CME contracts, including eight micros.
No account, no email, nothing gated. There are no affiliate links on this page and no broker or prop firm deals behind either tool. If that ever changes I will say so here first.
Both are calculators, not advice. Verify contract specifications with your broker before you trade, and remember that a probability is a model output rather than a measurement.
