About Finance-Calculators.com

This site provides free financial calculators for European vanilla, digital, and FX options, together with their sensitivities (Greeks).

Vanilla and digital options use the Black-Scholes option calculator. The Gamma Optimizer scans that same vanilla formula across a strike grid to pick a long call or put that maximizes return on premium at a target expiry price. The FX option tool uses the Garman-Kohlhagen model.

Bond calculators cover coupon and zero-coupon bonds, returning price and metrics such as Macaulay duration and modified duration. A mortgage calculator and risk tools (Value at Risk, volatility conversion) are also available.

The option strategies guide covers long and short calls and puts, spreads, straddles, strangles, butterflies, and iron condors. Monte-Carlo tools price Asian and lookback options. The implied volatility solver inverts the same vanilla formula as the option calculator.

Results are for information only and do not constitute investment advice.