Free Performance Budget Calculator — Set and Track Your Performance Budget
Calculate the right performance budget for your site based on your target LCP, CLS, and INP scores and see how far you are from hitting your targets.
Free — no account required for a single check. Sign up for continuous monitoring →
What the Performance Budget Calculator checks
Current LCP vs target LCP
Current CLS vs target CLS
Current TBT vs target TBT
Budget headroom remaining
Resources consuming most budget
Recommendations to hit budget
How it works
Runs Lighthouse against your URL, compares each metric to your target budget, and identifies which resources are consuming the most performance budget.
Monitor continuously — not just once
This free tool runs a one-off check. AuditJet monitors your site on a schedule — alerting you when scores change, before performance regressions affect your rankings and revenue.
Performance Budget Calculator — FAQ
Is the Performance Budget Calculator free?
Yes — Performance Budget Calculator is completely free to use. No account required for a single-URL check.
How does the Performance Budget Calculator work?
Runs Lighthouse against your URL, compares each metric to your target budget, and identifies which resources are consuming the most performance budget.
What does the Performance Budget Calculator check?
Current LCP vs target LCP. Current CLS vs target CLS. Current TBT vs target TBT. Budget headroom remaining. Resources consuming most budget. Recommendations to hit budget.
How is this different from Google PageSpeed Insights?
Google PageSpeed Insights is a one-off manual tool. AuditJet adds continuous monitoring, regression alerting, and revenue impact on top of the same performance analysis — so you're notified when scores change, not just when you remember to check.