🏗️ Real GDP Calculator
Convert nominal GDP into real (inflation-adjusted) GDP using the GDP deflator, and optionally compare growth between two years.
What Real GDP measures
Real GDP is the total value of goods and services an economy produces, adjusted to remove the effect of price changes (inflation). It allows economists to compare economic output across different years on a like-for-like basis, showing actual growth in production rather than growth caused purely by rising prices.
The formula
Real GDP is calculated as Real GDP = (Nominal GDP ÷ GDP Deflator) × 100, where the GDP deflator is a price index set to 100 in the base year. If you also enter the prior year’s real GDP, the calculator computes the year-over-year real GDP growth rate as (Real GDP – Prior Real GDP) ÷ Prior Real GDP × 100%.
Official statistics agencies use detailed methods across many categories of goods and services to build the GDP deflator; this calculator assumes you already have (or are estimating) that deflator value. This tool is for general economics education and planning purposes.