This free option pricing calculator can be used to calculate: Call Price, Put Price, Gamma, Delta, Theta, Vega, Implied Volatility. Calculator can use three option pricing models to caculate prices: Black-Scholes Option price, Binomial American option price and Binomial European option price

FeeFinder takes the mystery out of eBay's complicated fees. It can calculate your fees for virtually any type of eBay auction, as well as PayPal and eBay Payments costs. It also has links to all the major shipping cost calculators. Use it to keep accurate records and to strategize the best way to list your items before you post them. It works with eBay UK, Germany, and Canada as well as the main eBay site.

CalculPro will help your elementary school students practice mental arithmetic or to do fractions. Choose addition, subtraction, multiplication, division or fractions; then set the range of numbers and the number of calculations for an exercise. The program shows you two numbers or fractions respectively, and you enter an answer. Right or wrong answers get audio feedback and there's a pie chart to show your percentage of correct responses.

Calcul will help your elementary school students practice mental arithmetic or to do fractions. Choose addition, subtraction, multiplication, division or fractions; then set the range of numbers and the number of calculations for an exercise. The program shows you two numbers or fractions respectively, and you enter an answer. Right or wrong answers get audio feedback and there's a pie chart to show your percentage of correct responses.