Nominal GDP and real GDP are two measures of a country's economic output, but they differ in the way they are calculated. Nominal GDP is calculated using current market prices, while real GDP is adjusted for inflation.

The difference between nominal and real GDP is that nominal GDP does not take inflation into account, while real GDP does. Nominal GDP may be higher than real GDP in a period of high inflation, because the current market prices used to calculate it are inflated.

Real GDP is considered a more accurate measure of a country's economic output over time, because it takes inflation into account and provides a more accurate picture of the actual value of goods and services produced.

Nominal GDP and real GDP are both measures of a country's economic output but differ in how they account for inflation.

Nominal GDP measures the total value of all goods and services produced in an economy at current market prices. It does not adjust for inflation, meaning it can be influenced by changes in price levels.

Real GDP, on the other hand, adjusts for inflation by using constant prices from a base year. This adjustment provides a more accurate reflection of an economy's true growth over time by isolating the impact of inflation.

Nominal GDP reflects current price levels and is useful for comparing raw economic output, while real GDP provides a clearer view of economic growth by accounting for inflation.