👉 You may be interested in **Inflation from 1990 to **__2021__

$100 in 1990 is equivalent in purchasing power to about $192.22 in 2018, an increase of $92.22 over 28 years. The dollar had an average inflation rate of 2.36% per year between 1990 and 2018, producing a cumulative price increase of 92.22%.

This means that prices in 2018 are 1.92 times higher than average prices since 1990, according to the Bureau of Labor Statistics consumer price index.

The 1990 inflation rate was 5.40%. The inflation rate in 2018 was 2.49%. The 2018 inflation rate is lower compared to the average inflation rate of 3.26% per year between 2018 and 2021.

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Cumulative price change | 92.22% |

Average inflation rate | 2.36% |

Converted amount ($100 base) | $192.22 |

Price difference ($100 base) | $92.22 |

CPI in 1990 | 130.700 |

CPI in 2018 | 251.230 |

Inflation in 1990 | 5.40% |

Inflation in 2018 | 2.49% |

$100 in 1990 | $192.22 in 2018 |

This chart shows a calculation of buying power equivalence for $100 in 1990 (price index tracking began in 1635).

For example, if you started with $100, you would need to end with $192.22 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When $100 is equivalent to $192.22 over time, that means that the "real value" of a single U.S. dollar decreases over time. In other words, a dollar will pay for fewer items at the store.

This effect explains how inflation erodes the value of a dollar over time. By calculating the value in 1990 dollars, the chart below shows how $100 is worth less over 28 years.

According to the Bureau of Labor Statistics, each of these USD amounts below is equal in terms of what it could buy at the time:

This conversion table shows various other 1990 amounts in 2018 dollars, based on the 92.22% change in prices:

Initial value | Equivalent value |
---|---|

$1 dollar in 1990 | $1.92 dollars in 2018 |

$5 dollars in 1990 | $9.61 dollars in 2018 |

$10 dollars in 1990 | $19.22 dollars in 2018 |

$50 dollars in 1990 | $96.11 dollars in 2018 |

$100 dollars in 1990 | $192.22 dollars in 2018 |

$500 dollars in 1990 | $961.09 dollars in 2018 |

$1,000 dollars in 1990 | $1,922.19 dollars in 2018 |

$5,000 dollars in 1990 | $9,610.94 dollars in 2018 |

$10,000 dollars in 1990 | $19,221.88 dollars in 2018 |

$50,000 dollars in 1990 | $96,109.41 dollars in 2018 |

$100,000 dollars in 1990 | $192,218.82 dollars in 2018 |

$500,000 dollars in 1990 | $961,094.11 dollars in 2018 |

$1,000,000 dollars in 1990 | $1,922,188.22 dollars in 2018 |

Inflation can vary widely by city, even within the United States. Here's how some cities fared in 1990 to 2018 (figures shown are purchasing power equivalents of $100):

**San Diego, California**: 3.41% average rate, $100 → $255.60, cumulative change of 155.60%**Seattle, Washington**: 3.38% average rate, $100 → $253.55, cumulative change of 153.55%**Denver, Colorado**: 2.80% average rate, $100 → $216.67, cumulative change of 116.67%**San Francisco, California**: 2.79% average rate, $100 → $216.05, cumulative change of 116.05%**Atlanta, Georgia**: 2.69% average rate, $100 → $210.01, cumulative change of 110.01%**Miami-Fort Lauderdale, Florida**: 2.64% average rate, $100 → $207.54, cumulative change of 107.54%**Tampa, Florida**: 2.52% average rate, $100 → $200.77, cumulative change of 100.77%**Boston, Massachusetts**: 2.48% average rate, $100 → $198.82, cumulative change of 98.82%**New York**: 2.46% average rate, $100 → $197.51, cumulative change of 97.51%**Minneapolis-St Paul, Minnesota**: 2.37% average rate, $100 → $192.89, cumulative change of 92.89%**Houston, Texas**: 2.28% average rate, $100 → $187.91, cumulative change of 87.91%**Dallas-Fort Worth, Texas**: 2.25% average rate, $100 → $186.43, cumulative change of 86.43%**Philadelphia, Pennsylvania**: 2.23% average rate, $100 → $185.24, cumulative change of 85.24%**Detroit, Michigan**: 2.14% average rate, $100 → $180.96, cumulative change of 80.96%**Chicago, Illinois**: 2.13% average rate, $100 → $180.49, cumulative change of 80.49%**St Louis, Missouri**: 2.09% average rate, $100 → $178.58, cumulative change of 78.58%

San Diego, California experienced the highest rate of inflation during the 28 years between 1990 and 2018 (3.41%).

St Louis, Missouri experienced the lowest rate of inflation during the 28 years between 1990 and 2018 (2.09%).

Note that some locations showing 0% inflation may have not yet reported latest data.

Inflation can also vary widely by country. For comparison, in the UK £100.00 in 1990 would be equivalent to £221.89 in 2018, an absolute change of £121.89 and a cumulative change of 121.89%.

In Canada, CA$100.00 in 1990 would be equivalent to CA$163.70 in 2018, an absolute change of CA$63.70 and a cumulative change of 63.70%.

Compare these numbers to the US's overall absolute change of $92.22 and total percent change of 92.22%.

CPI is the weighted combination of many categories of spending that are tracked by the government. Breaking down these categories helps explain the main drivers behind price changes. This chart shows the average rate of inflation for select CPI categories between 1990 and 2018.

Compare these values to the overall average of 2.36% per year:

Category | Avg Inflation (%) | Total Inflation (%) | $100 in 1990 → 2018 |
---|---|---|---|

Food and beverages | 2.35 | 91.83 | 191.83 |

Housing | 2.53 | 101.07 | 201.07 |

Apparel | 0.04 | 1.27 | 101.27 |

Transportation | 2.01 | 74.80 | 174.80 |

Medical care | 3.97 | 197.73 | 297.73 |

Recreation | 1.09 | 35.42 | 135.42 |

Education and communication | 1.89 | 69.12 | 169.12 |

Other goods and services | 3.72 | 178.21 | 278.21 |

The graph below compares inflation in categories of goods over time. Click on a category such as "Food" to toggle it on or off:

For all these visualizations, it's important to note that not all categories may have been tracked since 1990. This table and charts use the earliest available data for each category.

Our calculations use the following inflation rate formula to calculate the change in value between 1990 and 2018:

CPI in 2018
CPI in 1990

×

1990 USD value

=

2018 USD value

Then plug in historical CPI values. The U.S. CPI was 130.7 in the year 1990 and 251.23 in 2018:

251.23130.7

×

$100

=

$100 in 1990 has the same "purchasing power" or "buying power" as $192.22 in 2018.

To get the total inflation rate for the 28 years between 1990 and 2018, we use the following formula:

CPI in 2018 - CPI in 1990CPI in 1990

×

100

=

Plugging in the values to this equation, we get:

251.23 - 130.7130.7

×

100

=

The above data describe the CPI for all items. Also of note is the **Core CPI**, which measures inflation for all items except for the more volatile categories of food and energy.
Core inflation averaged 2.32% per year between 1990 and 2018 (vs all-CPI inflation of 2.36%), for an inflation total of 90.14%.

When using the core inflation measurement, $100 in 1990 is equivalent in buying power to $190.14 in 2018, a difference of $90.14. Recall that for All Items, the converted amount is $192.22 with a difference of $92.22.

In 1990, core inflation was 5.03%.

The average inflation rate of 2.36% has a compounding effect between 1990 and 2018. As noted above, this yearly inflation rate compounds to produce an overall price difference of 92.22% over 28 years.

To help put this inflation into perspective, if we had invested $100 in the S&P 500 index in 1990, our investment would be * nominally* worth approximately $1,395.32 in 2018. This is a return on investment of 1,295.32%, with an absolute return of $1,295.32 on top of the original $100.

These numbers are not inflation adjusted, so they are considered *nominal*. In order to evaluate the *real* return on our investment, we must calculate the return with inflation taken into account.

The compounding effect of inflation would account for 47.98% of returns ($669.42) during this period. This means the inflation-adjusted * real* return of our $100 investment is $625.90. You may also want to account for capital gains tax, which would take your real return down to around $532 for most people.

Original Amount | Final Amount | Change | |
---|---|---|---|

Nominal |
$100 | $1,395.32 | 1,295.32% |

RealInflation Adjusted |
$100 | $725.90 | 625.90% |

Information displayed above may differ slightly from other S&P 500 calculators. Minor discrepancies can occur because we use the latest CPI data for inflation, annualized inflation numbers for previous years, and we compute S&P price and dividends from January of 1990 to latest available data for 2018 using average monthly close price.

For more details on the S&P 500 between 1990 and 2018, see the stock market returns calculator.

Politics and news often influence economic performance. Here's what was happening at the time:

- Nelson Mandela is released having spent 27 years in South African prison.
- The Hubble Space Telescope takes its first photos from space.
- Dr Penny Jamieson, becomes the first woman to be made an Anglican Bishop, in New Zeeland
- The United States sends troops to Saudi Arabia, marking the beginning of Operation Desert Shield.

Raw data for these calculations comes from the Bureau of Labor Statistics' Consumer Price Index (CPI), established in 1913. Inflation data from 1665 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University.

You may use the following MLA citation for this page: “1990 dollars in 2018 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 10 Nov. 2021, https://www.officialdata.org/1990-dollars-in-2018.

Special thanks to QuickChart for their chart image API, which is used for chart downloads.

Cumulative price change | 92.22% |

Average inflation rate | 2.36% |

Converted amount ($100 base) | $192.22 |

Price difference ($100 base) | $92.22 |

CPI in 1990 | 130.700 |

CPI in 2018 | 251.230 |

Inflation in 1990 | 5.40% |

Inflation in 2018 | 2.49% |

$100 in 1990 | $192.22 in 2018 |