Glossary · Economy
Real GDP
Real GDP is the value of everything an economy produces with price changes taken out, so it shows whether output really grew.
Also called: inflation-adjusted GDP, GDP at constant prices, real gross domestic product
In 2017 dollars, Q3 2026. In today’s prices: $33T.
To Q3 2026.
In 2017 dollars, 2025. In 1947: $15,158.
In plain words
A pizza shop sold $1,000 of pizza last year and $1,071 this year. Did it make more pizza? Not necessarily: maybe it just charged more. To find out, value this year’s pizzas at last year’s prices. Do that for a whole country and you get real GDP: output measured at fixed prices, so only the amount of stuff counts.
Plain GDP, also called nominal GDP, adds everything up at the prices of the day, so it grows when prices rise even if nothing more is made. Real GDP takes that inflation out. When the news says “the economy grew 2%”, it means real GDP.
The US measures real GDP in “chained 2017 dollars”: every year’s output priced as if it were sold at 2017 prices. Over the four quarters to Q3 2026, US GDP in current dollars changed by +5.9%, real GDP by +2.1%. The rest, +3.7%, was the change in prices.
Example
Nominal or real: a one-pizza economy
- Year 1: 100 pizzas at $10 each. GDP = $1,000.
- Year 2: 102 pizzas at $10.50. Nominal GDP = 102 × $10.50 = $1,071, up 7.1%.
- Value year 2’s pizzas at year 1’s price: 102 × $10 = $1,020. That is real GDP, up 2%.
- The rest is price: $1,071 ÷ $1,020 = 1.05, so prices rose 5%.
Real growth (2%) and price growth (5%) together make the nominal growth (7.1%). Statisticians do the same for thousands of goods and services at once.
One level deeper
Real GDP is nominal GDP divided by a price index called the GDP deflator. Since 1996 the US has used chain weighting: each year’s growth is measured with the prices of that year and the year before, and the links are chained together. That keeps the numbers fair when some prices change fast, like computers, which get better and cheaper every year.
Since 1947, US GDP in current dollars grew 136 times, while real GDP grew 11.3 times. On average real GDP grew 3.1% a year. Per person it rose from $15,158 in 1947 to $70,021 in 2025 (2017 dollars), or 2.0% a year.
Real GDP falling for months is the core sign of a recession. To compare living standards across countries, economists divide it by population (GDP per capita) and convert it at purchasing-power parity.
US growth since 1948: in current dollars and real
Each line is the change from the same quarter a year earlier. The gap between them is the rise in prices. In the 1970s most of the growth in current dollars was inflation; in 2009 and 2020 real GDP shrank.
The numbers behind the chart
| Date | Real GDP | GDP in current dollars |
|---|---|---|
| Q1 1948 | 2.6% | 9.3% |
| Q4 1950 | 13.4% | 18.2% |
| Q4 1960 | 0.9% | 2.2% |
| Q4 1970 | −0.2% | 4.9% |
| Q4 1980 | −0.0% | 9.6% |
| Q4 1990 | 0.6% | 4.5% |
| Q4 2000 | 2.9% | 5.4% |
| Q4 2010 | 2.8% | 4.5% |
| Q4 2020 | −0.9% | 0.7% |
| Q4 2022 | 1.2% | 7.9% |
| Q4 2023 | 3.4% | 6.3% |
| Q4 2024 | 2.6% | 5.1% |
| Q4 2025 | 2.0% | 5.1% |
| Q3 2026 | 2.1% | 5.9% |
Why it matters
Real GDP is the best single measure of whether an economy produces more or less. Central banks, governments and companies plan around it.
Nominal numbers can fool you: a country with 50% inflation can show huge nominal growth while it actually produces less.
Over decades, real GDP per person tracks living standards: it is why a typical American today can afford far more goods and services than in 1950.
A common mistake
Myth: GDP rose 6%, so the economy grew 6%.
In fact: Only if prices stood still. Over the four quarters to Q3 2026, US GDP in current dollars changed by +5.9% and real GDP by +2.1%. Growth figures in the news are almost always real.
Questions people ask
What is the difference between real and nominal GDP?
Nominal GDP values output at each year’s own prices; real GDP values every year at the same prices (2017’s, in the US). Nominal grows with both output and prices, real only with output. US real GDP is $24.6T at a yearly rate (Q3 2026); in current dollars it is $33T.
Why is US real GDP in 2017 dollars?
The Bureau of Economic Analysis picks a reference year and moves it forward every few years in a comprehensive revision; 2017 is the current one. The choice changes the dollar level, not the growth rates.
How often is real GDP published?
In the US, every quarter. A first (advance) estimate comes about a month after the quarter ends; it is revised twice over the next two months and again in yearly and comprehensive revisions.
Read more on BigCapital
About the numbers
- The numbers on this page are recalculated from the data every night; the sources are listed at the end of the page.
- US recessions (NBER business cycle dates): National Bureau of Economic Research (NBER), Business Cycle Dating Committee: US Business Cycle Expansions and Contractions.
- Gross domestic product (current dollars): U.S. Bureau of Economic Analysis, National Income and Product Accounts, Table 1.1.5, series GDP; retrieved from FRED, Federal Reserve Bank of St. Louis.
- US population (midperiod, BEA): U.S. Bureau of Economic Analysis, National Income and Product Accounts, Table 2.1, series B230RC0A052NBEA; retrieved from FRED, Federal Reserve Bank of St. Louis.
- Real gross domestic product: U.S. Bureau of Economic Analysis, National Income and Product Accounts, series GDPC1; retrieved from FRED, Federal Reserve Bank of St. Louis.
- Real GDP in chained 2017 dollars (BEA). Chained-dollar levels of different parts of GDP do not add up exactly to the total.
- This page explains a term. It is not investment advice.