$50 I Bond with 0.30% Fixed Rate Purchased October 2018

 Jan
1
Feb
1
Mar
1
Apr
1
Infla
tion
Rate
Com
posite
Rate
May
1
Jun
1
Jul
1
Aug
1
Sep
1
Oct
1
Infla
tion
Rate
Com
posite
Rate
Nov
1
Dec
1
2018 50.001.11%2.52%50.1050.202018
201950.3250.4250.5250.641.16%2.62%50.7450.8650.9851.0851.2051.300.70%1.70%51.3851.442019
202051.5251.6051.6651.741.01%2.32%51.8451.9452.0452.1452.2452.340.53%1.36%52.4052.462020
202152.5252.5852.6452.700.84%1.98%52.7852.8852.9653.0453.1453.221.77%3.85%53.3853.562021
202253.7253.9054.0854.243.56%7.43%54.5854.9055.2455.5855.9256.264.81%9.93%56.7257.182022
202357.6458.1058.5859.063.24%6.79%59.3859.7260.0660.3860.7261.061.69%3.69%61.2461.442023
202461.6261.8062.0062.181.97%4.25%62.4062.6262.8463.0663.2863.501.48%3.26%63.6863.842024
202564.0264.1864.3664.540.95%2.20%64.6664.7864.9065.0265.1465.241.43%3.16%65.4265.582025
202665.7665.9266.1066.28

From $50.00 to $66.28 over 7.5 years = 3.79% average annual increase compounded semi-annually.

Generated  05/01/25  10:59