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GDP Deflator Calculator

Just enter nominal and real GDP to compute the GDP deflator automatically. Add the prior-year deflator to also get the year-over-year inflation rate.

Input

trillion
trillion

Enter this to also compute the year-over-year inflation rate (change in the deflator).

Result

GDP deflator (base year = 100)

101.85

Nominal GDP

550 trillion

Real GDP

540 trillion

How it works

  • The GDP deflator is calculated as nominal GDP / real GDP x 100. In the base year, nominal and real GDP are equal, so the value is 100.
  • Nominal GDP is measured at the current year's market prices, while real GDP is converted to base-year prices to strip out the effect of price changes. Enter both in the same unit (for example, trillions).
  • A GDP deflator above 100 means prices have risen relative to the base year; below 100 means prices have fallen (a deflationary trend).
  • Enter the prior-year GDP deflator and the tool computes the year-over-year inflation rate as (current - prior) / prior x 100. A positive value indicates inflation, a negative value deflation.
  • The GDP deflator is less affected by import prices and is used to capture the overall price trend of all goods and services produced domestically. Its scope differs from the Consumer Price Index (CPI).
  • Note: the values shown are estimates based on your input. Official statistics may differ depending on the chosen base year and calculation method, so check published government data for exact figures.