$1,000 I Bond with 3.40% Fixed Rate Purchased October 1998

 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
1998 1,000.000.62%4.66%1,004.001,007.601998
19991,011.601,015.601,019.201,023.200.86%5.15%1,027.601,032.001,036.401,040.801,045.201,049.600.86%5.15%1,054.001,058.401999
20001,063.201,067.601,072.001,076.801.76%6.98%1,082.801,089.201,095.601,101.601,108.001,114.401.91%7.28%1,121.201,127.602000
20011,134.401,141.201,148.001,154.801.52%6.49%1,160.801,167.201,173.201,179.601,186.001,192.401.44%6.33%1,198.801,204.802001
20021,211.201,217.601,223.601,230.001.19%5.82%1,236.001,242.001,247.601,253.601,259.601,265.600.28%3.97%1,269.601,274.002002
20031,278.001,282.401,286.401,290.801.23%5.90%1,297.201,303.201,309.601,316.001,322.401,328.801.77%7.00%1,336.401,344.002003
20041,352.001,359.601,367.601,375.200.54%4.50%1,380.401,385.601,390.401,395.601,400.801,406.001.19%5.82%1,412.801,419.602004
20051,426.401,433.201,440.001,446.801.33%6.11%1,454.001,461.201,468.801,476.001,483.601,490.801.79%7.04%1,499.601,508.002005
20061,516.801,525.601,534.401,543.202.85%9.20%1,554.801,566.401,578.401,590.001,602.001,614.000.50%4.42%1,620.001,626.002006
20071,631.601,637.601,643.601,649.601.55%6.55%1,658.401,667.601,676.401,685.601,694.401,703.601.21%5.86%1,712.001,720.002007
20081,728.401,736.801,745.201,753.601.53%6.51%1,762.801,772.401,782.001,791.601,801.201,810.802.42%8.32%1,823.201,835.602008
20091,848.001,860.801,873.201,886.002.46%8.40%1,898.801,912.001,925.201,938.401,951.601,965.20-2.78%0.00%1,965.201,965.202009
20101,965.201,965.201,965.201,965.201.53%6.51%1,975.601,986.401,996.802,007.602,018.402,029.200.77%4.97%2,037.602,046.002010
20112,054.402,062.802,071.202,079.600.37%4.15%2,086.802,094.002,101.202,108.402,115.602,122.802.30%8.08%2,136.802,151.202011
20122,165.202,179.602,194.002,208.401.53%6.51%2,220.402,232.002,244.002,256.002,268.002,280.401.10%5.64%2,290.802,301.602012
20132,312.402,323.202,334.002,344.800.88%5.19%2,354.802,364.802,375.202,385.202,395.202,405.600.59%4.60%2,414.802,424.002013
20142,433.202,442.402,451.602,460.800.59%4.60%2,470.002,479.602,488.802,498.402,508.002,517.200.92%5.27%2,528.002,539.202014
20152,550.002,561.202,572.402,583.600.74%4.91%2,594.002,604.402,615.202,625.602,636.402,647.20-0.80%1.77%2,651.202,654.802015
20162,658.802,662.802,666.802,670.800.77%4.97%2,681.602,692.802,703.602,714.802,726.002,737.200.08%3.56%2,745.202,753.202016
20172,761.602,769.602,777.602,786.001.38%6.21%2,800.402,814.402,828.802,843.202,858.002,872.400.98%5.39%2,885.202,898.002017
20182,910.802,923.602,936.802,950.001.24%5.92%2,964.402,978.802,993.203,008.003,022.403,037.201.11%5.66%3,051.203,065.602018
20193,080.003,094.403,108.803,123.201.16%5.76%3,138.003,152.803,168.003,182.803,198.003,213.200.70%4.82%3,226.003,238.802019
20203,251.603,264.803,277.603,290.801.01%5.45%3,305.603,320.403,335.203,350.403,365.203,380.400.53%4.48%3,392.803,405.602020
20213,418.003,430.803,443.203,456.000.84%5.11%3,470.403,485.203,500.003,514.803,529.603,544.401.77%7.00%3,564.803,585.202021
20223,606.003,626.803,647.603,668.403.56%10.64%3,700.403,732.403,764.803,797.203,830.403,863.604.81%13.18%3,904.803,946.802022
20233,988.804,031.604,074.804,118.403.24%9.99%4,152.004,186.004,220.004,254.404,289.204,324.001.69%6.84%4,348.404,372.802023
20244,397.204,422.004,446.804,472.001.97%7.41%4,499.204,526.404,554.004,581.604,609.604,637.601.48%6.41%4,662.004,686.802024
20254,711.204,736.004,761.204,786.400.95%5.33%4,807.604,828.404,849.604,871.204,892.404,914.001.43%6.31%4,939.604,965.202025
20264,990.805,016.805,042.805,069.20

From $1,000.00 to $5,069.20 over 27.5 years = 5.99% average annual increase compounded semi-annually.

Generated  05/01/25  10:59