What kind of calculator would I need to....

[skooooo]

...start with my principal investment; add monthly payments AND count compounding interest over time.

Is there anything online I can use to plug these three numbers in and get a reasonable idea of how much money I would make over time?

Thanks!

[mzteris]

1. see if one of these links has what you need....

http://www.1728.com/compint.htm

http://www.cheapskatemonthly.com/member_tools_calculator.asp

http://www.bankofinternet.com/quickhelp/calcinterest.asp

[Jamastiene]

2. I think you can use a spreadsheet program.

Most of them have templates where you can plug numbers into already designed calculators. Also, there are places online where you can do that easier.