LCP Image Priority Planner
Estimate hero image transfer cost, oversize ratio, and generate a priority Image snippet for LCP assets.
About This Tool
Check whether a hero image is too large for its rendered size and estimate how much network time it adds.
Use the generated snippet as a starting point for a real LCP image rather than preloading every image on the page.
Transfer
408 ms
Oversize ratio
1.78x
Status
Good
How to Use
- 1
Enter the values you need or paste your text into the input area.
- 2
Adjust any options, units, or settings for your exact use case.
- 3
Review the result and copy it into your document, workflow, or next task.
Features
Instant Results
Outputs update directly in the browser as you enter values.
Browser-Based Processing
Your inputs are handled locally and are not uploaded for calculation.
Simple Inputs
Clear fields and readable outputs keep repeat tasks fast.
Free to Use
Use the tool immediately with no sign-up or installation.
Common use cases
- ›Decide whether a hero image should use priority and fetchPriority high.
- ›Find oversized source images that hurt LCP on mobile.
- ›Create a responsive sizes value for the primary above-the-fold image.
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