Just using average returns, maybe 7%
........
How do I calculate those investment figures would be in 15 years? Year 2033

EDIT; Thanks for the suggestion

Divide by .87% bi-analaulally

Nice humblebrag




















Kidding...nice job OP. I would imagine there are plenty of calculators that can assist. Google is your friend

Google for compound interest calculator.

Also start looking at other investment routes.  Ie real estate.

Sold my rent houses. Tired of the rent thieves.

Thanks for the calculator.

starting balance x 1+ rate of return ^ (years)

Say $5000 x 1.07^15 years = $13,795.16

The Government is here to help

This^^^

investment/balance  times Rate of return (in decimal) plus 1 (so 7% ROR means 1.07) raised to the number of periods you want it to compound. This is only accurate if it's compounded annually though.

Lets say you have something bearing 7% return but it's actually compounded weekly. You need to take the rate of return per the compounding time-period (a week) and raise it to the number of weeks. You divide 7% by 52 to get a weekly rate of 0.13461538%. The equation to solve that would look like: $5,000 X 1.0013461538^(52 X 15) = $14,278.17

I know it's not much of a difference but over long time periods the compounding period makes a difference.