| Your age: | Your current age in years. |
| Millionaire target age: | The age you want to become a millionaire. For example, to find out what it will take to be a millionaire by age 40, enter 40 here. |
| Amount currently invested: | Total value of all of your current investments. Although you could include your home and personal property in this amount - it is a bit more accurate to include only your savings, retirement accounts and investments. |
| Savings per month: | The amount you will contribute each month to your investments. |
| Expected Rate of Return: | Pre-tax rate of return on investments. For example, the long-term rate of return for the S&P 500 is about 10%. |
| State Tax Rate: | Your marginal state tax rate. |
| Federal Tax Rate: | Your marginal federal tax rate. |
| Expected Inflation Rate: | What you expect for the average long-term inflation rate. |