View $100 in 2005 → **2021**

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$100 in 2005 is equivalent in purchasing power to about $128.64 in 2018, an increase of $28.64 over 13 years. The dollar had an average inflation rate of 1.96% per year between 2005 and 2018, producing a cumulative price increase of 28.64%.

This means that prices in 2018 are 1.29 times higher than average prices since 2005, according to the Bureau of Labor Statistics consumer price index.

The 2005 inflation rate was 3.39%. The inflation rate in 2018 was 2.49%. The 2018 inflation rate is lower compared to the average inflation rate of 2.88% per year between 2018 and 2021.

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Cumulative price change | 28.64% |

Average inflation rate | 1.96% |

Converted amount ($100 base) | $128.64 |

Price difference ($100 base) | $28.64 |

CPI in 2005 | 195.300 |

CPI in 2018 | 251.230 |

Inflation in 2005 | 3.39% |

Inflation in 2018 | 2.49% |

$100 in 2005 | $128.64 in 2018 |

This chart shows a calculation of buying power equivalence for $100 in 2005 (price index tracking began in 1635).

For example, if you started with $100, you would need to end with $128.64 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

When $100 is equivalent to $128.64 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 2005 dollars, the chart below shows how $100 is worth less over 13 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 2005 amounts in 2018 dollars, based on the 28.64% change in prices:

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

$1 dollar in 2005 | $1.29 dollars in 2018 |

$5 dollars in 2005 | $6.43 dollars in 2018 |

$10 dollars in 2005 | $12.86 dollars in 2018 |

$50 dollars in 2005 | $64.32 dollars in 2018 |

$100 dollars in 2005 | $128.64 dollars in 2018 |

$500 dollars in 2005 | $643.19 dollars in 2018 |

$1,000 dollars in 2005 | $1,286.38 dollars in 2018 |

$5,000 dollars in 2005 | $6,431.90 dollars in 2018 |

$10,000 dollars in 2005 | $12,863.80 dollars in 2018 |

$50,000 dollars in 2005 | $64,319.00 dollars in 2018 |

$100,000 dollars in 2005 | $128,637.99 dollars in 2018 |

$500,000 dollars in 2005 | $643,189.96 dollars in 2018 |

$1,000,000 dollars in 2005 | $1,286,379.93 dollars in 2018 |

Inflation can vary widely by city, even within the United States. Here's how some cities fared in 2005 to 2018 (figures shown are purchasing power equivalents of $100):

**San Diego, California**: 3.09% average rate, $100 → $148.52, cumulative change of 48.52%**San Francisco, California**: 2.67% average rate, $100 → $140.86, cumulative change of 40.86%**Denver, Colorado**: 2.46% average rate, $100 → $137.22, cumulative change of 37.22%**Miami-Fort Lauderdale, Florida**: 2.43% average rate, $100 → $136.62, cumulative change of 36.62%**Seattle, Washington**: 2.36% average rate, $100 → $135.41, cumulative change of 35.41%**Tampa, Florida**: 2.22% average rate, $100 → $133.09, cumulative change of 33.09%**Houston, Texas**: 1.97% average rate, $100 → $128.85, cumulative change of 28.85%**New York**: 1.96% average rate, $100 → $128.65, cumulative change of 28.65%**Phoenix, Arizona**: 1.93% average rate, $100 → $128.23, cumulative change of 28.23%**Boston, Massachusetts**: 1.89% average rate, $100 → $127.56, cumulative change of 27.56%**Minneapolis-St Paul, Minnesota**: 1.85% average rate, $100 → $126.86, cumulative change of 26.86%**Atlanta, Georgia**: 1.81% average rate, $100 → $126.31, cumulative change of 26.31%**Dallas-Fort Worth, Texas**: 1.81% average rate, $100 → $126.25, cumulative change of 26.25%**Philadelphia, Pennsylvania**: 1.63% average rate, $100 → $123.39, cumulative change of 23.39%**St Louis, Missouri**: 1.60% average rate, $100 → $122.91, cumulative change of 22.91%**Chicago, Illinois**: 1.56% average rate, $100 → $122.31, cumulative change of 22.31%**Detroit, Michigan**: 1.53% average rate, $100 → $121.82, cumulative change of 21.82%

San Diego, California experienced the highest rate of inflation during the 13 years between 2005 and 2018 (3.09%).

Detroit, Michigan experienced the lowest rate of inflation during the 13 years between 2005 and 2018 (1.53%).

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 2005 would be equivalent to £145.77 in 2018, an absolute change of £45.77 and a cumulative change of 45.77%.

In Canada, CA$100.00 in 2005 would be equivalent to CA$121.56 in 2018, an absolute change of CA$21.56 and a cumulative change of 21.56%.

Compare these numbers to the US's overall absolute change of $28.64 and total percent change of 28.64%.

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 2005 and 2018.

Compare these values to the overall average of 1.96% per year:

Category | Avg Inflation (%) | Total Inflation (%) | $100 in 2005 → 2018 |
---|---|---|---|

Food and beverages | 2.19 | 32.52 | 132.52 |

Housing | 2.16 | 32.07 | 132.07 |

Apparel | 0.38 | 5.12 | 105.12 |

Transportation | 1.49 | 21.14 | 121.14 |

Medical care | 3.17 | 49.96 | 149.96 |

Recreation | 0.66 | 8.90 | 108.90 |

Education and communication | 1.43 | 20.31 | 120.31 |

Other goods and services | 2.69 | 41.16 | 141.16 |

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 2005. 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 2005 and 2018:

CPI in 2018
CPI in 2005

×

2005 USD value

=

2018 USD value

Then plug in historical CPI values. The U.S. CPI was 195.3 in the year 2005 and 251.23 in 2018:

251.23195.3

×

$100

=

$100 in 2005 has the same "purchasing power" or "buying power" as $128.64 in 2018.

To get the total inflation rate for the 13 years between 2005 and 2018, we use the following formula:

CPI in 2018 - CPI in 2005CPI in 2005

×

100

=

Plugging in the values to this equation, we get:

251.23 - 195.3195.3

×

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 1.93% per year between 2005 and 2018 (vs all-CPI inflation of 1.96%), for an inflation total of 28.21%.

When using the core inflation measurement, $100 in 2005 is equivalent in buying power to $128.21 in 2018, a difference of $28.21. Recall that for All Items, the converted amount is $128.64 with a difference of $28.64.

In 2005, core inflation was 2.17%.

**Chained CPI** is an alternative measurement that takes into account how consumers adjust spending for similar items.
Chained inflation averaged 1.72% per year between 2005 and 2018, a total inflation amount of 28.21%.

According to the Chained CPI measurement, $100 in 2005 is equal in buying power to $124.76 in 2018, a difference of $24.76 (versus a converted amount of $128.64/change of $28.64 for All Items).

In 2005, chained inflation was 2.92%.

The average inflation rate of 1.96% has a compounding effect between 2005 and 2018. As noted above, this yearly inflation rate compounds to produce an overall price difference of 28.64% over 13 years.

To help put this inflation into perspective, if we had invested $100 in the S&P 500 index in 2005, our investment would be * nominally* worth approximately $292.75 in 2018. This is a return on investment of 192.75%, with an absolute return of $192.75 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 22.26% of returns ($65.17) during this period. This means the inflation-adjusted * real* return of our $100 investment is $127.58. You may also want to account for capital gains tax, which would take your real return down to around $108 for most people.

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

Nominal |
$100 | $292.75 | 192.75% |

RealInflation Adjusted |
$100 | $227.58 | 127.58% |

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 2005 to latest available data for 2018 using average monthly close price.

For more details on the S&P 500 between 2005 and 2018, see the stock market returns calculator.

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

- Egyptian President Hosni Mubarak asks Parliament to amend Article 76 and orders constitutional changes in order to allow multi-candidate presidential elections.
- Syria's 29-year-long military domination of Lebanon ends, after it withdraws the last of its 14,000 troops under international pressure.
- A coordinated bomb attack hits London's public transport system, during the morning rush hour, killing 52 and injuring a further 700 people.
- Angela Merkel becomes first female Chancellor of Germany.

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: “$100 in 2005 → 2018 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 16 Sep. 2021, https://www.officialdata.org/us/inflation/2005?amount=100&endYear=2018.

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

Cumulative price change | 28.64% |

Average inflation rate | 1.96% |

Converted amount ($100 base) | $128.64 |

Price difference ($100 base) | $28.64 |

CPI in 2005 | 195.300 |

CPI in 2018 | 251.230 |

Inflation in 2005 | 3.39% |

Inflation in 2018 | 2.49% |

$100 in 2005 | $128.64 in 2018 |