Core Web Vitals Score Calculator
Evaluate your LCP, INP, and CLS performance metrics against official Google thresholds to calculate ratings and composite scores.
Metric Inputs
≤ 2.5s (Good)
Good
≤ 200ms (Good)
Good
≤ 0.1 (Good)
Good
Overall Web Vitals Assessment
Composite Assessment Status
PASS
All Core Web Vitals thresholds met successfully!
Official Google Thresholds Reference
1. LCP Thresholds
Good: ≤ 2.5s
Needs Improvement: ≤ 4.0s
Poor: > 4.0s
2. INP Thresholds
Good: ≤ 200ms
Needs Improvement: ≤ 500ms
Poor: > 500ms
3. CLS Thresholds
Good: ≤ 0.1
Needs Improvement: ≤ 0.25
Poor: > 0.25