$1 in 1870 is equivalent in purchasing power to about $0.80 in 1877, a difference of $-0.20 over 7 years.
The dollar had an average **deflation** rate of -3.11% per year since 1870, producing a cumulative price change of -19.85%.

This means that prices in 1877 are 19.85% lower than average prices since 1870, according to the Bureau of Labor Statistics consumer price index.

The 1870 inflation rate was -3.68%. The inflation rate in 1877 was -1.87%. The 1877 inflation rate is lower compared to the average inflation rate of 2.29% per year between 1877 and 2021.

Contents

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Cumulative price change | -19.85% |

Average inflation rate | -3.11% |

Converted amount ($1 base) | $0.80 |

Price difference ($1 base) | $-0.20 |

CPI in 1870 | 13.100 |

CPI in 1877 | 10.500 |

Inflation in 1870 | -3.68% |

Inflation in 1877 | -1.87% |

$1 in 1870 | $0.80 in 1877 |

This chart shows a calculation of buying power equivalence for $1 in 1870 (price index tracking began in 1635).

For example, if you started with $1, you would need to end with $0.80 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 1870 amounts in 1877 dollars, based on the -19.85% change in prices:

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

$1 dollar in 1870 | $0.80 dollars in 1877 |

$5 dollars in 1870 | $4.01 dollars in 1877 |

$10 dollars in 1870 | $8.02 dollars in 1877 |

$50 dollars in 1870 | $40.08 dollars in 1877 |

$100 dollars in 1870 | $80.15 dollars in 1877 |

$500 dollars in 1870 | $400.76 dollars in 1877 |

$1,000 dollars in 1870 | $801.53 dollars in 1877 |

$5,000 dollars in 1870 | $4,007.63 dollars in 1877 |

$10,000 dollars in 1870 | $8,015.27 dollars in 1877 |

$50,000 dollars in 1870 | $40,076.34 dollars in 1877 |

$100,000 dollars in 1870 | $80,152.67 dollars in 1877 |

$500,000 dollars in 1870 | $400,763.36 dollars in 1877 |

$1,000,000 dollars in 1870 | $801,526.72 dollars in 1877 |

Inflation can also vary widely by country. For comparison, in the UK £1.00 in 1870 would be equivalent to £1.02 in 1877, an absolute change of £0.02 and a cumulative change of 2.11%.

Compare these numbers to the US's overall absolute change of $-0.20 and total percent change of -19.85%.

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 1870 and 1877.

Compare these values to the overall average of -3.11% per year:

Category | Avg Inflation (%) | Total Inflation (%) | $1 in 1870 → 1877 |
---|---|---|---|

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 1870. 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 1870 and 1877:

CPI in 1877
CPI in 1870

×

1870 USD value

=

1877 USD value

Then plug in historical CPI values. The U.S. CPI was 13.1 in the year 1870 and 10.5 in 1877:

10.513.1

×

$1

=

$1 in 1870 has the same "purchasing power" or "buying power" as $0.80 in 1877.

To get the total inflation rate for the 7 years between 1870 and 1877, we use the following formula:

CPI in 1877 - CPI in 1870CPI in 1870

×

100

=

Plugging in the values to this equation, we get:

10.5 - 13.113.1

×

100

=

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

- New York begins building the Brooklyn Bridge (the bridge is completed in 1883).
- Austria inaugurates Wiener Musikverein, also known as the Great Hall, in Vienna.
- The Carson City mint, in Nevada, starts issuing coins.

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 1870 → 1877 | Inflation Calculator.” Official Inflation Data, Alioth Finance, 24 Oct. 2021, https://www.officialdata.org/us/inflation/1870?amount=1&endYear=1877.

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 | -19.85% |

Average inflation rate | -3.11% |

Converted amount ($1 base) | $0.80 |

Price difference ($1 base) | $-0.20 |

CPI in 1870 | 13.100 |

CPI in 1877 | 10.500 |

Inflation in 1870 | -3.68% |

Inflation in 1877 | -1.87% |

$1 in 1870 | $0.80 in 1877 |