If I purchased an I Bond today... ?

Question

If I purchased 2 I Bonds today, one for 100$ and the other for 50$... how much would they be worth in...

10 years?
20 years?
30 years?
50 years?
100 years?

Thanks.

Answer 1

The interest rate is a premium to inflation so it is impossible to answer. If there were runaway inflation you would double your money every couple years, if there were trivial inflation it will take decades. I bonds guarantee that the purchasing power of your money will not diminish and you pick up some extra return too.