Computing 'Real Value' Over Time With a Conversion Between U.K. Pounds and U.S. Dollars, 1791 to Present

When using the CPI/RPI, the (average) value in 1890 of £1 from 1880 is $4.28. The range of values is from $4.15 to $4.40. This answer is better if the subject is a consumer good or something else of interest to an individual.

When using the GDP deflator, the (average) value in 1890 of £1 from 1880 is $4.41. The range of values is from $4.19 to $4.80. This answer is better if the subject is a capital investment or government expenditure


Value in 1890 of £1 from 1880
Converted inConverted usingAverage dollar price
per pound that year
CPI / RPIGDP Deflator
1880$4.31$4.244.845
1881$4.24$4.194.830
1882$4.28$4.284.870
1883$4.35$4.244.849
1884$4.30$4.314.854
1885$4.24$4.354.856
1886$4.30$4.484.861
1887$4.15$4.444.852
1888$4.16$4.474.870
1889$4.34$4.714.869
1890$4.40$4.804.861
Average$4.28$4.41 

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Citation

Lawrence H. Officer and Samuel H. Williamson, "Computing 'Real Value' Over Time With a Conversion Between U.K. Pounds and U.S. Dollars, 1791 to Present", MeasuringWorth, URL http://www.measuringworth.com/exchange/

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