OpCalc

Options Profit Calculator

Free options modeling tool · Educational use only

Popular tickers

Powered by Black-Scholes · Estimated values
Prices delayed 15 min · No account required

Profit when the stock rises

Profit when the stock falls

Bull Call Spread

Bullish with capped risk

Bear Put Spread

Bearish with capped risk

Generate income from stock you own

What Is a Call Option?

The right to buy 100 shares at a fixed price.

How to Pick a Strike Price

ITM, ATM, OTM — how the choice affects your trade.

The daily cost of holding an option, explained.

How Spreads Work

Reduce cost and cap risk with two-leg strategies.

Profit when a stock stays in a range.

Delta, gamma, theta, vega — what they measure.

View all guides →