Inflation Calculator

You can download an Excel version of Inflation Calculator that lets you see how to use the FV and PV functions to perform some basic inflation calculations.

Annuity Calculator

This new Annuity Calculator can help you figure out how much you need to have saved for retirement. The Savings Calculator can help you figure out how much you will have saved by making regular contributions for a number of years. Then, the Annuity Calculator can help you figure out how long that savings will last you.

Savings Interest Calculator

I just created a new Savings Calculator that estimates the interest earned in a savings account over time. It lets you include monthly and annual deposits, graphs your balance vs. investment, and creates an amortization table showing the interest earned each year.

401(k) Savings Calculator

The new 401k Calculator let's you estimate your future 401(k) balance at retirement. It is very simple to use and let's you include your employer match, annual raise. Perhaps the most unique feature of this spreadsheet is that it let's you specify a random rate of return so you can see how fluctuations in the market might affect your balance.

It also includes a worksheet that calculators Internal Rate of Return (IRR). It can be used to track your 401(k) over time. Any additional suggestions for this worksheet are welcome.