Calculate inflation from 1981 to 2018.
This calculator is derived from the Consumer Price Index (CPI) provided by the United States government. They calculate the price of various goods over time to determine the CPI.
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| Amount in 1981 | Value in 2018 |
| $0.01 in 1981 | 0.03 in 2018 |
| $0.02 in 1981 | 0.06 in 2018 |
| $0.03 in 1981 | 0.09 in 2018 |
| $0.04 in 1981 | 0.11 in 2018 |
| $0.05 in 1981 | 0.14 in 2018 |
| $0.06 in 1981 | 0.17 in 2018 |
| $0.07 in 1981 | 0.20 in 2018 |
| $0.08 in 1981 | 0.23 in 2018 |
| $0.09 in 1981 | 0.26 in 2018 |
| $0.10 in 1981 | 0.29 in 2018 |
| $0.25 in 1981 | 0.71 in 2018 |
| $0.50 in 1981 | 1.43 in 2018 |
| $0.75 in 1981 | 2.14 in 2018 |
| $1.00 in 1981 | 2.86 in 2018 |
| $1.25 in 1981 | 3.57 in 2018 |
| $1.50 in 1981 | 4.28 in 2018 |
| $1.75 in 1981 | 5.00 in 2018 |
| $2.00 in 1981 | 5.71 in 2018 |
| $3 in 1981 | 8.57 in 2018 |
| $4 in 1981 | 11.43 in 2018 |
| $5 in 1981 | 14.28 in 2018 |
| $6 in 1981 | 17.14 in 2018 |
| $7 in 1981 | 20.00 in 2018 |
| $8 in 1981 | 22.85 in 2018 |
| $9 in 1981 | 25.71 in 2018 |
| $10 in 1981 | 28.57 in 2018 |
| $15 in 1981 | 42.85 in 2018 |
| $20 in 1981 | 57.13 in 2018 |
| $25 in 1981 | 71.41 in 2018 |
| $30 in 1981 | 85.70 in 2018 |
| $35 in 1981 | 99.98 in 2018 |
| $40 in 1981 | 114.26 in 2018 |
| $45 in 1981 | 128.55 in 2018 |
| $50 in 1981 | 142.83 in 2018 |
| $75 in 1981 | 214.24 in 2018 |
| $100 in 1981 | 285.66 in 2018 |
| $125 in 1981 | 357.07 in 2018 |
| $150 in 1981 | 428.49 in 2018 |
| $175 in 1981 | 499.90 in 2018 |
| $200 in 1981 | 571.32 in 2018 |
| $225 in 1981 | 642.73 in 2018 |
| $250 in 1981 | 714.15 in 2018 |
| $275 in 1981 | 785.56 in 2018 |
| $300 in 1981 | 856.98 in 2018 |
| $325 in 1981 | 928.39 in 2018 |
| $350 in 1981 | 999.81 in 2018 |
| $375 in 1981 | 1,071.22 in 2018 |
| $400 in 1981 | 1,142.64 in 2018 |
| $425 in 1981 | 1,214.05 in 2018 |
| $450 in 1981 | 1,285.47 in 2018 |
| $475 in 1981 | 1,356.88 in 2018 |
| $500 in 1981 | 1,428.30 in 2018 |
| $600 in 1981 | 1,713.96 in 2018 |
| $700 in 1981 | 1,999.62 in 2018 |
| $800 in 1981 | 2,285.27 in 2018 |
| $900 in 1981 | 2,570.93 in 2018 |
| $1,000 in 1981 | 2,856.59 in 2018 |
| $2,000 in 1981 | 5,713.19 in 2018 |
| $3,000 in 1981 | 8,569.78 in 2018 |
| $4,000 in 1981 | 11,426.37 in 2018 |
| $5,000 in 1981 | 14,282.97 in 2018 |
| $6,000 in 1981 | 17,139.56 in 2018 |
| $7,000 in 1981 | 19,996.15 in 2018 |
| $8,000 in 1981 | 22,852.75 in 2018 |
| $9,000 in 1981 | 25,709.34 in 2018 |
| $10,000 in 1981 | 28,565.93 in 2018 |
| $20,000 in 1981 | 57,131.87 in 2018 |
| $30,000 in 1981 | 85,697.80 in 2018 |
| $40,000 in 1981 | 114,263.73 in 2018 |
| $50,000 in 1981 | 142,829.66 in 2018 |
| $60,000 in 1981 | 171,395.60 in 2018 |
| $70,000 in 1981 | 199,961.53 in 2018 |
| $80,000 in 1981 | 228,527.46 in 2018 |
| $90,000 in 1981 | 257,093.40 in 2018 |
| $100,000 in 1981 | 285,659.33 in 2018 |
| $200,000 in 1981 | 571,318.66 in 2018 |
| $300,000 in 1981 | 856,977.98 in 2018 |
| $400,000 in 1981 | 1,142,637.31 in 2018 |
| $500,000 in 1981 | 1,428,296.64 in 2018 |
| $600,000 in 1981 | 1,713,955.97 in 2018 |
| $700,000 in 1981 | 1,999,615.30 in 2018 |
| $800,000 in 1981 | 2,285,274.62 in 2018 |
| $900,000 in 1981 | 2,570,933.95 in 2018 |
| $1,000,000 in 1981 | 2,856,593.28 in 2018 |