$1,000 I Bond with 0.10% Fixed Rate Purchased December 2017

 Infla
tion
Rate
Com
posite
Rate
Jan
1
Feb
1
Mar
1
Apr
1
May
1
Jun
1
Infla
tion
Rate
Com
posite
Rate
Jul
1
Aug
1
Sep
1
Oct
1
Nov
1
Dec
1
2017 1,000.002017
20181.24%2.58%1,002.001,004.401,006.401,008.401,010.801,012.801.11%2.32%1,014.801,016.801,018.801,020.801,022.401,024.402018
20191.16%2.42%1,026.401,028.401,030.401,032.801,034.801,036.800.70%1.50%1,038.001,039.201,040.801,042.001,043.201,044.402019
20201.01%2.12%1,046.401,048.001,050.001,051.601,053.601,055.600.53%1.16%1,056.801,057.601,058.801,059.601,060.801,061.602020
20210.84%1.78%1,063.201,064.801,066.401,068.001,069.601,071.201.77%3.64%1,074.401,077.601,080.801,084.001,087.601,090.802021
20223.56%7.22%1,097.201,103.601,110.401,116.801,123.601,130.004.81%9.72%1,138.801,148.001,157.201,166.401,175.601,184.802022
20233.24%6.58%1,191.201,197.601,204.001,210.801,217.201,223.601.69%3.48%1,227.201,230.801,234.001,237.601,241.201,244.802023
20241.97%4.04%1,248.801,253.201,257.201,261.601,265.601,270.001.48%3.06%1,273.201,276.401,279.601,282.801,286.001,289.602024
20250.95%2.00%1,291.601,294.001,296.001,298.001,300.401,302.401.43%2.96%1,305.601,308.801,312.001,315.201,318.401,321.602025
20261.56%3.22%1,325.201,328.801,332.001,335.601,339.201,342.80

From $1,000.00 to $1,342.80 over 8.5 years = 3.50% average annual increase compounded semi-annually.

Generated  11/04/25  09:11