$1 in 1640 is equivalent in purchasing power to about $0.57 in 1646, a difference of $-0.43 over 6 years. The dollar had an average **deflation** rate of -8.87% per year since 1640, producing a cumulative price change of -42.71%.

This means that prices in 1646 are 42.71% lower than average prices since 1640, according to the Bureau of Labor Statistics consumer price index.

The inflation rate in 1640 was -12.73%. The inflation rate in 1646 was -37.50%. The 1646 inflation rate is lower compared to the average inflation rate of 1.07% per year between 1646 and 2024.

Contents

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Cumulative price change | -42.71% |

Average inflation rate | -8.87% |

Converted amount $1 base | $0.57 |

Price difference $1 base | $-0.43 |

CPI in 1640 | 9.600 |

CPI in 1646 | 5.500 |

Inflation in 1640 | -12.73% |

Inflation in 1646 | -37.50% |

$1 in 1640 | $0.57 in 1646 |

This chart shows a calculation of buying power equivalence for $1 in 1640 (price index tracking began in 1635).

For example, if you started with $1, you would need to end with $0.57 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 1640 amounts in 1646 dollars, based on the -42.71% change in prices:

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

$1 dollar in 1640 | $0.57 dollars in 1646 |

$5 dollars in 1640 | $2.86 dollars in 1646 |

$10 dollars in 1640 | $5.73 dollars in 1646 |

$50 dollars in 1640 | $28.65 dollars in 1646 |

$100 dollars in 1640 | $57.29 dollars in 1646 |

$500 dollars in 1640 | $286.46 dollars in 1646 |

$1,000 dollars in 1640 | $572.92 dollars in 1646 |

$5,000 dollars in 1640 | $2,864.58 dollars in 1646 |

$10,000 dollars in 1640 | $5,729.17 dollars in 1646 |

$50,000 dollars in 1640 | $28,645.83 dollars in 1646 |

$100,000 dollars in 1640 | $57,291.67 dollars in 1646 |

$500,000 dollars in 1640 | $286,458.33 dollars in 1646 |

$1,000,000 dollars in 1640 | $572,916.67 dollars in 1646 |

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 1640 and 1646.

Compare these values to the overall average of -8.87% per year:

Category | Avg Inflation (%) | Total Inflation (%) | $1 in 1640 → 1646 |
---|---|---|---|

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 1640. 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 1640 and 1646:

CPI in 1646 CPI in 1640

×

1640 USD value

=

1646 USD value

Then plug in historical CPI values. The U.S. CPI was 9.6 in the year 1640 and 5.5 in 1646:

5.59.6

×

$1

=

$1 in 1640 has the same "purchasing power" or "buying power" as $0.57 in 1646.

To get the total inflation rate for the 6 years between 1640 and 1646, we use the following formula:

CPI in 1646 - CPI in 1640CPI in 1640

×

100

=

Plugging in the values to this equation, we get:

5.5 - 9.69.6

×

100

=

Raw data for these calculations comes from the Bureau of Labor Statistics' Consumer Price Index (CPI), established in 1913. Price index data from 1774 to 1912 is sourced from a historical study conducted by political science professor Robert Sahr at Oregon State University and from the American Antiquarian Society. Price index data from 1634 to 1773 is from the American Antiquarian Society, using British pound equivalents.

You may use the following MLA citation for this page: “$1 in 1640 → 1646 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 25 Feb. 2024, https://www.officialdata.org/us/inflation/1640?amount=1&endYear=1646.

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 | -42.71% |

Average inflation rate | -8.87% |

Converted amount $1 base | $0.57 |

Price difference $1 base | $-0.43 |

CPI in 1640 | 9.600 |

CPI in 1646 | 5.500 |

Inflation in 1640 | -12.73% |

Inflation in 1646 | -37.50% |

$1 in 1640 | $0.57 in 1646 |