Formula
deflator=100 × nominal/real GDP.
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Nominal and real GDP must cover the same output and period. Not a consumer-price index.
Example Calculation
Example inputs
- Nominal GDP: 1200
- Real GDP at base-year prices: 1000
Nominal GDP = 1200; Real GDP at base-year prices = 1000. The primary result is 120.
Frequently asked questions
How do I use this calculator?
Enter nominal gdp, real gdp at base-year prices. The result updates automatically. Use Reset to restore the example values.
What method does it use?
deflator=100 × nominal/real GDP.. Nominal and real GDP must cover the same output and period. Not a consumer-price index.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.