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Options Greeks Calculator (Delta, Theta, Vega)

Investing & Markets

Estimate an option's Delta, Theta, and Vega using the Black-Scholes model.

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USD
$0.01$1,000,000.00
USD
$0.01$1,000,000.00
days
1 day3,650 days
%
1%300%
%
0%20%

Delta (Call)

0.3152

Sensitivity of the option price to a $1 change in the stock price

Theta (Call, per day)

-0.0546

Estimated daily time decay of the option price

Vega (per 1% IV change)

0.1019

Estimated change in option price for a 1 percentage point change in implied volatility

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Calculator Stats

Odeh Ahwal

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Odeh Ahwal
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Frequently Asked Questions

What do Delta, Theta, and Vega measure?

Delta measures price sensitivity to the underlying stock, Theta measures time decay, and Vega measures sensitivity to changes in implied volatility.

Is this calculator suitable for real trading decisions?

This uses the standard Black-Scholes approximation for educational purposes only; real options pricing can differ due to dividends, early exercise, and market microstructure.

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