$1 in 1660 is equivalent in purchasing power to about $0.76 in 1666, a difference of $-0.24 over 6 years.
The dollar had an average **deflation** rate of -4.47% per year since 1660, producing a cumulative price change of -24.00%.

This means that prices in 1666 are 24% lower than average prices since 1660, according to the Bureau of Labor Statistics consumer price index.

The inflation rate in 1660 was 13.64%. The inflation rate in 1666 was 0.00%. The 1666 inflation rate is lower compared to the average inflation rate of 1.22% per year between 1666 and 2021.

Contents

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Cumulative price change | -24.00% |

Average inflation rate | -4.47% |

Converted amount ($1 base) | $0.76 |

Price difference ($1 base) | $-0.24 |

CPI in 1660 | 5.000 |

CPI in 1666 | 3.800 |

Inflation in 1660 | 13.64% |

Inflation in 1666 | 0.00% |

$1 in 1660 | $0.76 in 1666 |

This chart shows a calculation of buying power equivalence for $1 in 1660 (price index tracking began in 1635).

For example, if you started with $1, you would need to end with $0.76 in order to "adjust" for inflation (sometimes refered to as "beating inflation").

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 1660 amounts in 1666 dollars, based on the -24.00% change in prices:

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

$1 dollar in 1660 | $0.76 dollars in 1666 |

$5 dollars in 1660 | $3.80 dollars in 1666 |

$10 dollars in 1660 | $7.60 dollars in 1666 |

$50 dollars in 1660 | $38.00 dollars in 1666 |

$100 dollars in 1660 | $76.00 dollars in 1666 |

$500 dollars in 1660 | $380.00 dollars in 1666 |

$1,000 dollars in 1660 | $760.00 dollars in 1666 |

$5,000 dollars in 1660 | $3,800.00 dollars in 1666 |

$10,000 dollars in 1660 | $7,600.00 dollars in 1666 |

$50,000 dollars in 1660 | $38,000.00 dollars in 1666 |

$100,000 dollars in 1660 | $76,000.00 dollars in 1666 |

$500,000 dollars in 1660 | $380,000.00 dollars in 1666 |

$1,000,000 dollars in 1660 | $760,000.00 dollars in 1666 |

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 1660 and 1666.

Compare these values to the overall average of -4.47% per year:

Category | Avg Inflation (%) | Total Inflation (%) | $1 in 1660 → 1666 |
---|---|---|---|

Food and beverages | 0.00 | 0.00 | 1.00 |

Housing | 0.00 | 0.00 | 1.00 |

Apparel | 0.00 | 0.00 | 1.00 |

Transportation | 0.00 | 0.00 | 1.00 |

Medical care | 0.00 | 0.00 | 1.00 |

Recreation | 0.00 | 0.00 | 1.00 |

Education and communication | 0.00 | 0.00 | 1.00 |

Other goods and services | 0.00 | 0.00 | 1.00 |

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 1660. 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 1660 and 1666:

CPI in 1666
CPI in 1660

×

1660 USD value

=

1666 USD value

Then plug in historical CPI values. The U.S. CPI was 5 in the year 1660 and 3.8 in 1666:

3.85

×

$1

=

$1 in 1660 has the same "purchasing power" or "buying power" as $0.76 in 1666.

To get the total inflation rate for the 6 years between 1660 and 1666, we use the following formula:

CPI in 1666 - CPI in 1660CPI in 1660

×

100

=

Plugging in the values to this equation, we get:

3.8 - 55

×

100

=

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: “$1 in 1660 → 1666 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 8 Dec. 2021, https://www.officialdata.org/us/inflation/1660?amount=1&endYear=1666.

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

in2013dollars.com is a reference website maintained by the Official Data Foundation.

Cumulative price change | -24.00% |

Average inflation rate | -4.47% |

Converted amount ($1 base) | $0.76 |

Price difference ($1 base) | $-0.24 |

CPI in 1660 | 5.000 |

CPI in 1666 | 3.800 |

Inflation in 1660 | 13.64% |

Inflation in 1666 | 0.00% |

$1 in 1660 | $0.76 in 1666 |