When using the CPI/RPI, the (average) value in 2014 of £115 from 1931 is $9193.55. The range of values is from $6279.88 to $12873.75. 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 2014 of £115 from 1931 is $8186.47. The range of values is from $4906.35 to $13522.96. This answer is better if the subject is a capital investment or government expenditure
| Value in 2014 of £115 from 1931 | |||
|---|---|---|---|
| Converted in | Converted using | Average dollar price per pound that year | |
| CPI / RPI | GDP Deflator | ||
| 1931 | $8106.62 | $6632.44 | 4.535 |
| 1932 | $6839.41 | $5673.42 | 3.506 |
| 1933 | $8518.47 | $6953.24 | 4.237 |
| 1934 | $9805.55 | $7779.21 | 5.039 |
| 1935 | $9513.95 | $7520.00 | 4.902 |
| 1936 | $9764.32 | $7583.01 | 4.971 |
| 1937 | $9869.90 | $7519.84 | 4.944 |
| 1938 | $10052.23 | $7724.16 | 4.889 |
| 1939 | $9526.48 | $7321.53 | 4.435 |
| 1940 | $9247.59 | $6885.27 | 3.830 |
| 1941 | $10224.45 | $7528.08 | 4.032 |
| 1942 | $9825.11 | $7483.99 | 4.035 |
| 1943 | $9593.69 | $7446.68 | 4.035 |
| 1944 | $9628.62 | $7634.38 | 4.035 |
| 1945 | $9596.78 | $7567.36 | 4.030 |
| 1946 | $9204.36 | $6925.65 | 4.033 |
| 1947 | $8526.68 | $6782.70 | 4.029 |
| 1948 | $8515.88 | $6833.91 | 4.031 |
| 1949 | $8093.98 | $6430.70 | 3.687 |
| 1950 | $6279.88 | $4906.35 | 2.801 |
| 1951 | $6347.20 | $4968.07 | 2.800 |
| 1952 | $6763.04 | $5200.79 | 2.793 |
| 1953 | $6966.88 | $5262.80 | 2.813 |
| 1954 | $7060.51 | $5247.27 | 2.809 |
| 1955 | $7348.21 | $5390.67 | 2.791 |
| 1956 | $7624.08 | $5577.46 | 2.796 |
| 1957 | $7612.57 | $5602.99 | 2.793 |
| 1958 | $7693.29 | $5711.08 | 2.810 |
| 1959 | $7659.22 | $5688.00 | 2.809 |
| 1960 | $7615.56 | $5661.83 | 2.808 |
| 1961 | $7782.50 | $5810.69 | 2.802 |
| 1962 | $8046.25 | $5958.81 | 2.808 |
| 1963 | $8078.06 | $5963.36 | 2.800 |
| 1964 | $8213.38 | $6068.20 | 2.792 |
| 1965 | $8464.07 | $6322.64 | 2.796 |
| 1966 | $8544.57 | $6464.31 | 2.793 |
| 1967 | $8391.27 | $6367.37 | 2.750 |
| 1968 | $7337.63 | $5544.69 | 2.394 |
| 1969 | $7325.12 | $5628.55 | 2.390 |
| 1970 | $7377.35 | $5876.29 | 2.396 |
| 1971 | $7895.59 | $6180.42 | 2.444 |
| 1972 | $8378.87 | $6521.24 | 2.501 |
| 1973 | $8434.31 | $6591.82 | 2.451 |
| 1974 | $8419.89 | $6708.81 | 2.340 |
| 1975 | $9101.12 | $7347.28 | 2.222 |
| 1976 | $8147.25 | $6535.71 | 1.805 |
| 1977 | $8572.11 | $6777.46 | 1.745 |
| 1978 | $9482.36 | $7793.84 | 1.918 |
| 1979 | $10691.44 | $9129.72 | 2.122 |
| 1980 | $12180.45 | $11038.68 | 2.326 |
| 1981 | $10742.44 | $9890.21 | 2.024 |
| 1982 | $9494.72 | $8711.60 | 1.748 |
| 1983 | $8344.31 | $7696.33 | 1.516 |
| 1984 | $7405.96 | $6914.97 | 1.337 |
| 1985 | $7359.41 | $6876.12 | 1.297 |
| 1986 | $8455.96 | $8011.85 | 1.468 |
| 1987 | $9494.21 | $9239.05 | 1.640 |
| 1988 | $10386.09 | $10308.46 | 1.781 |
| 1989 | $9821.84 | $9879.08 | 1.638 |
| 1990 | $11109.16 | $11246.46 | 1.784 |
| 1991 | $11178.70 | $11537.10 | 1.767 |
| 1992 | $11251.59 | $11669.56 | 1.766 |
| 1993 | $9439.45 | $10001.98 | 1.502 |
| 1994 | $9614.17 | $10168.43 | 1.532 |
| 1995 | $9969.97 | $10560.75 | 1.579 |
| 1996 | $9804.72 | $10747.74 | 1.561 |
| 1997 | $10373.13 | $11102.92 | 1.638 |
| 1998 | $10686.72 | $11280.48 | 1.657 |
| 1999 | $10360.64 | $11011.09 | 1.617 |
| 2000 | $9673.04 | $10222.97 | 1.516 |
| 2001 | $9092.52 | $9664.55 | 1.440 |
| 2002 | $9496.67 | $10157.37 | 1.502 |
| 2003 | $10395.47 | $11107.74 | 1.635 |
| 2004 | $11690.63 | $12452.08 | 1.833 |
| 2005 | $11548.48 | $12354.73 | 1.820 |
| 2006 | $11689.80 | $12496.04 | 1.843 |
| 2007 | $12873.75 | $13522.96 | 2.002 |
| 2008 | $11940.77 | $12703.89 | 1.855 |
| 2009 | $10067.81 | $10861.73 | 1.566 |
| 2010 | $10223.68 | $10741.90 | 1.545 |
| 2011 | $10826.12 | $11159.25 | 1.604 |
| 2012 | $10816.25 | $10986.27 | 1.586 |
| 2013 | $10837.36 | $10885.24 | 1.564 |
| 2014 | $11504.48 | $11419.48 | 1.649 |
| Average | $9193.55 | $8186.47 | |
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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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