$100 I Bond with 3.30% Fixed Rate Purchased November 1998

 Jan
1
Feb
1
Mar
1
Apr
1
May
1
Infla
tion
Rate
Com
posite
Rate
Jun
1
Jul
1
Aug
1
Sep
1
Oct
1
Nov
1
Infla
tion
Rate
Com
posite
Rate
Dec
1
1998 100.000.86%5.05%100.401998
1999100.84101.24101.68102.08102.520.86%5.05%102.96103.36103.80104.24104.68105.121.76%6.88%105.721999
2000106.32106.92107.52108.12108.721.91%7.18%109.36110.00110.64111.32111.96112.641.52%6.39%113.242000
2001113.84114.44115.04115.64116.241.44%6.23%116.84117.44118.04118.64119.24119.881.19%5.72%120.442001
2002121.00121.60122.16122.72123.320.28%3.87%123.72124.12124.52124.92125.32125.721.23%5.80%126.322002
2003126.92127.52128.12128.76129.361.77%6.90%130.08130.84131.56132.32133.08133.840.54%4.40%134.322003
2004134.80135.32135.80136.28136.801.19%5.72%137.44138.08138.76139.40140.04140.721.33%6.00%141.402004
2005142.12142.80143.52144.24144.961.79%6.94%145.80146.60147.44148.28149.12150.002.85%9.09%151.122005
2006152.24153.36154.52155.68156.800.50%4.32%157.36157.92158.48159.04159.60160.201.55%6.45%161.042006
2007161.92162.76163.64164.48165.361.21%5.76%166.16166.92167.72168.52169.32170.121.53%6.41%171.002007
2008171.92172.84173.72174.64175.562.42%8.22%176.76177.92179.12180.32181.56182.762.46%8.30%184.002008
2009185.24186.52187.80189.04190.36-2.78%0.00%190.36190.36190.36190.36190.36190.361.53%6.41%191.362009
2010192.36193.40194.40195.44196.480.77%4.87%197.28198.08198.84199.64200.44201.280.37%4.05%201.962010
2011202.64203.32204.00204.68205.362.30%7.98%206.72208.04209.40210.80212.16213.561.53%6.41%214.682011
2012215.80216.96218.08219.24220.401.10%5.54%221.40222.40223.44224.44225.48226.520.88%5.09%227.482012
2013228.44229.40230.36231.32232.280.59%4.50%233.16234.00234.88235.76236.64237.520.59%4.50%238.402013
2014239.28240.16241.08241.96242.880.92%5.17%243.92244.96246.00247.04248.12249.160.74%4.80%250.162014
2015251.12252.12253.12254.12255.12-0.80%1.67%255.48255.84256.20256.52256.88257.240.77%4.87%258.282015
2016259.32260.36261.40262.44263.520.08%3.46%264.28265.04265.80266.56267.32268.081.38%6.11%269.442016
2017270.80272.16273.52274.88276.280.98%5.29%277.48278.68279.92281.12282.36283.601.24%5.82%284.962017
2018286.32287.68289.08290.48291.841.11%5.56%293.16294.52295.88297.24298.60299.961.16%5.66%301.362018
2019302.76304.16305.60307.00308.440.70%4.72%309.64310.84312.04313.28314.48315.721.01%5.35%317.122019
2020318.52319.92321.32322.76324.160.53%4.38%325.32326.52327.68328.88330.08331.240.84%5.01%332.602020
2021334.00335.36336.76338.16339.521.77%6.90%341.44343.40345.32347.28349.24351.243.56%10.54%354.242021
2022357.32360.36363.48366.60369.764.81%13.08%373.68377.64381.64385.72389.80393.963.24%9.89%397.162022
2023400.36403.60406.84410.12413.441.69%6.74%415.72418.04420.36422.68425.00427.361.97%7.31%429.922023
2024432.52435.08437.72440.32443.001.48%6.31%445.28447.60449.92452.28454.60456.960.95%5.23%458.922024
2025460.92462.88464.88466.88468.921.43%6.21%471.32473.72476.16478.56481.04483.481.56%6.47%486.042025
2026488.64491.24493.84496.48499.12

From $100.00 to $499.12 over 27.5 years = 5.93% average annual increase compounded semi-annually.

Generated  11/04/25  09:10