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GDP Gap Calculator.
Calculate the percentage gap between actual and potential GDP.
此计算器尚未完全翻译——部分文本以英文显示。
设备端计算无需注册
01
输入数值
输入时结果会更新。
02 / 答案
GDP gap: -5%
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Cite this calculator
Canonical URL: https://mathify.one/zh/finance/gdp-gap
Cite as: Mathify. (2026). 计算器: GDP Gap. https://mathify.one/zh/finance/gdp-gap
Use Cases
Economic Analysis
Use the GDP gap to evaluate whether the economy is underperforming or overheating relative to its potential output.
Example: If actual GDP is $20 trillion and potential GDP is $21 trillion, the gap is -4.76%.
Policy Assessment
Policymakers can gauge the need for fiscal or monetary stimulus or restraint based on the size and direction of the gap.
Frequently Asked Questions
- What is the GDP gap?
- The GDP gap is the difference between actual GDP and potential GDP, expressed as a percentage of potential GDP. It indicates whether the economy is operating above (positive gap) or below (negative gap) its full capacity.
- How is the GDP gap calculated?
- The GDP gap is calculated as (Actual GDP - Potential GDP) / Potential GDP × 100. A positive percentage indicates an inflationary gap, while a negative percentage indicates a recessionary gap.
- Why is the GDP gap important?
- The GDP gap helps policymakers and economists assess economic health. A large negative gap suggests unemployment and unused resources, while a large positive gap may signal inflation pressure.
Tips & Common Mistakes
Tips
- Ensure both actual and potential GDP are in the same currency and time period for accurate comparison.
- Use real GDP (inflation-adjusted) rather than nominal GDP to avoid distortion from price changes.
- Potential GDP is an estimate; different methodologies may yield slightly different gaps.
- Interpret the gap in context: a small negative gap may be normal, while a large one indicates significant slack.
Common Mistakes to Avoid
- Using nominal GDP instead of real GDP, which can overstate or understate the gap due to inflation.
- Mixing different time periods (e.g., quarterly actual GDP with annual potential GDP) without adjustment.
- Assuming a zero gap is always ideal; in reality, a small positive gap may be acceptable.
Last updated: August 13, 2026