FinKit Classic for Mac

From ParanzaSoft:

FinKit is a multi-function financial calculator that lets you solve all sorts of problems involving the time value of money.

The freeware version provides seventeen different calculations:

• Effective Rates
• Equivalent Rates
• Periodic to Annual Rates
• Inflation and Taxes
• Find Rate
• Single Payment
• Multiple Payments
• Annuity
• Perpetuity
• Amortization
• Sinking Fund
• Lease
• Credit Cards
• Savings
• Withdrawals
• Time between Dates
• Interest between Dates

Most of the calculations let you view details such as amortization shedules. Saved results can be imported in any program that can read tab-delimited text.

FinKit can be used as a currency independent application. To make things easier for European users who still like to think in their "old" currencies it does currency conversions between the currencies of the Economic and Monetary Union on the fly.

FinKit is very easy to use. It's a calculator without a "Calculate" button: what you see is what is calculated!