$1,000 I Bond with 0.00% Fixed Rate Purchased July 2008

 Jan
1
Infla
tion
Rate
Com
posite
Rate
Feb
1
Mar
1
Apr
1
May
1
Jun
1
Jul
1
Infla
tion
Rate
Com
posite
Rate
Aug
1
Sep
1
Oct
1
Nov
1
Dec
1
2008 1,000.002.42%4.84%1,004.001,008.001,012.001,016.001,020.002008
20091,024.402.46%4.92%1,028.401,032.801,036.801,041.201,045.201,049.60-2.78%0.00%1,049.601,049.601,049.601,049.601,049.602009
20101,049.601.53%3.06%1,052.401,054.801,057.601,060.401,062.801,065.600.77%1.54%1,066.801,068.401,069.601,071.201,072.402010
20111,074.000.37%0.74%1,074.801,075.201,076.001,076.801,077.201,078.002.30%4.60%1,082.001,086.401,090.401,094.401,098.802011
20121,102.801.53%3.06%1,105.601,108.401,111.201,114.001,116.801,119.601.10%2.20%1,121.601,123.601,125.601,127.601,130.002012
20131,132.000.88%1.76%1,133.601,135.201,136.801,138.801,140.401,142.000.59%1.18%1,143.201,144.401,145.201,146.401,147.602013
20141,148.800.59%1.18%1,150.001,151.201,152.001,153.201,154.401,155.600.92%1.84%1,157.201,159.201,160.801,162.801,164.402014
20151,166.400.74%1.48%1,168.001,169.201,170.801,172.001,173.601,175.20-0.80%0.00%1,175.201,175.201,175.201,175.201,175.202015
20161,175.200.77%1.54%1,176.801,178.401,179.601,181.201,182.801,184.400.08%0.16%1,184.401,184.801,184.801,185.201,185.202016
20171,185.201.38%2.76%1,188.001,190.801,193.201,196.001,198.801,201.600.98%1.96%1,203.601,205.601,207.601,209.601,211.602017
20181,213.201.24%2.48%1,215.601,218.001,220.801,223.201,225.601,228.401.11%2.22%1,230.801,232.801,235.201,237.601,239.602018
20191,242.001.16%2.32%1,244.401,246.801,249.201,251.601,254.001,256.400.70%1.40%1,258.001,259.201,260.801,262.401,263.602019
20201,265.201.01%2.02%1,267.201,269.601,271.601,273.601,276.001,278.000.53%1.06%1,279.201,280.401,281.201,282.401,283.602020
20211,284.800.84%1.68%1,286.401,288.401,290.001,292.001,293.601,295.601.77%3.54%1,299.201,303.201,307.201,310.801,314.802021
20221,318.403.56%7.12%1,326.001,334.001,341.601,349.601,357.201,365.204.81%9.62%1,376.001,386.801,397.601,408.801,419.602022
20231,430.803.24%6.48%1,438.401,446.001,453.601,461.601,469.201,477.201.69%3.38%1,481.201,485.601,489.601,493.601,498.002023
20241,502.001.97%3.94%1,506.801,511.601,516.801,521.601,526.801,531.601.48%2.96%1,535.201,539.201,542.801,546.801,550.402024
20251,554.400.95%1.90%1,556.801,559.201,561.601,564.401,566.801,569.201.43%2.86%1,572.801,576.801,580.401,584.001,588.002025
20261,591.601.56%3.12%1,595.601,600.001,604.001,608.001,612.401,616.40

From $1,000.00 to $1,616.40 over 18.0 years = 2.69% average annual increase compounded semi-annually.

Generated  11/04/25  09:10