How do I use the Core Web Vitals Calculator?

Enter your values and click Calculate for instant results.

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Core Web Vitals Calculator

Name: Core Web Vitals Calculator
Rating: 4.8 (1250 reviews)

Analyze your Core Web Vitals (LCP, FID, CLS) and get actionable recommendations for passing Google's page experience signals.

Updated 2025-01-153 min read

Enter values below

LCP (seconds)*

FID (milliseconds)*

CLS Score*

INP (milliseconds)

Page URL