APPROXIMATE OPTION CALCULATOR - FOR INFORMATIONAL PURPOSES ONLY

This calculator can estimate option values and other option parameters using either the Black-Scholes or Binomial model.

Model and Option Type

• Select either "Black-Scholes" or "Binomial".

• Select either "European" or "American".
American options require the Binomial model.

• Select either "Call" or "Put".

Calculating a Missing Value

The yellow fields are calculation inputs.

Leave ONE yellow field blank or enter zero, and the calculator will solve for that value.

If all required yellow fields contain values, the Option Premium will be calculated.

IMPORTANT:
Do not leave more than one yellow field blank or zero.

If zero is the actual value you want to use as an input, enter a very small number instead of zero so that the calculator does not treat the field as the value to be calculated.

Option Spreads - Strike2

"Strike2" is optional.

Enter a second strike price to calculate a debit or credit spread.

When Strike2 is specified, the displayed Greeks correspond to the option at the Strike2 price.

Strike2 may be left blank and does not count as the one allowable blank yellow field.