GDP Calculator – Expenditure Approach
Calculate GDP from consumption, investment, government purchases and net exports for one period.
Formula
GDP = C + I + G + exports − imports
Net exports (money) ≈ (100)-(80) · GDP (same money scale) ≈ (600)+(200)+(150)+(20)
How to use
- Enter consumption, gross investment and government purchases.
- Enter exports and imports in the same money scale and period.
- Read GDP and net exports.
Examples
- 600 + 200 + 150 + 100 − 80 = GDP 970.
Frequently asked questions
What units should I use?
Use one currency and scale, such as billions, for every input.
Do transfers count as government purchases?
No. Use government consumption and gross investment, not transfer payments.
Does this calculate real GDP?
Only if inputs already use a consistent real-price basis; no inflation adjustment is applied.
Sources
Updated: