EF solves your financial problems.
It's an easy calculator for everyone.

DEMO VERSION with ads.

Solves:

Bonds

- Bonds
- Convert interest rate to discount rate.
- Price Bonds.

Personal Finance
- Discount Calculator
- Percentage Calculator
- "Regla de tres"
- Tip Calculator
- Currency

Basic
- Interest rate
- Present and Future Value, Simple Interest.
- Compound Interest
- Annuities
- Net Present Value
- IRR (Technical support Abraham Torres)
- Amortization (three types)(Technical support Abraham Torres)

Financial Ratios
- Liquidity Measurement
- Debt Ratios
- Operating Performance Ratios
- Profitability Indicator Ratios
- Others

Derivatives Markets
- Options: buy a call, sell a call, buy a put and sell a put. You can graph.
- Black - Scholes Model (Dividend).

Recent changes:
Bug fixes.
New Interface.
New functions.
- Bonds
- Convert interest rate to discount rate.
- Price Bonds.
- IRR.
- Amortization.