ABCDEFGHIJKLMNOPQRSTUVWXYZAAABAC
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(May 2020) This calculator has moved to a dedicated webapp:
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https://googlechrome.github.io/lighthouse/scorecalc/
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Example metric scores. (What metric value is required to get a X score on this audit)
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CategoryAudit
Weight within Category
Score of 99
Score of 95
Score of 90
Score of 80
Score of 70
Score of 45
Metric Scoring Median
Metric Scoring Falloff
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performancefirst-meaningful-paint51,2231,7292,0812,6043,0614,0004,0001,600
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performancefirst-interactive51,6092,7443,6515,1596,62110,00010,0001,700
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performanceconsistently-interactive51,6092,7443,6515,1596,62110,00010,0001,700
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performancespeed-index-metric11,0771,7352,2383,0473,8075,5005,5001,250
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performanceestimated-input-latency1385058708010010050
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pwaservice-worker1
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pwaworks-offline1
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pwawithout-javascript1
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pwais-on-https1
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pwaredirects-http1
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pwaload-fast-enough-for-pwa1
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pwawebapp-install-banner1
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pwasplash-screen1
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pwathemed-omnibox1
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pwaviewport1
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pwacontent-width1
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accessibilityaccesskeys1
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accessibilityaria-allowed-attr3
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accessibilityaria-required-attr2
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accessibilityaria-required-children5
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accessibilityaria-required-parent2
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accessibilityaria-roles3
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accessibilityaria-valid-attr-value2
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accessibilityaria-valid-attr5
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accessibilityaudio-caption4
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accessibilitybutton-name10
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accessibilitybypass10
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accessibilitycolor-contrast6
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accessibilitydefinition-list1
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accessibilitydlitem1
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accessibilitydocument-title2
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accessibilityduplicate-id5
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accessibilityframe-title5
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accessibilityhtml-has-lang4
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accessibilityhtml-lang-valid1
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accessibilityimage-alt8
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accessibilityinput-image-alt1
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accessibilitylabel10
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accessibilitylayout-table1
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accessibilitylink-name9
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accessibilitylist5
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accessibilitylistitem4
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accessibilitymeta-refresh1
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accessibilitymeta-viewport3
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accessibilityobject-alt4
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accessibilitytabindex4
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accessibilitytd-headers-attr1
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accessibilityth-has-data-cells1
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accessibilityvalid-lang1
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accessibilityvideo-caption4
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accessibilityvideo-description3
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best-practices
appcache-manifest1
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best-practices
no-websql1
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best-practices
is-on-https1
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best-practices
uses-http21
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best-practices
uses-passive-event-listeners1
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best-practices
no-mutation-events1
80
best-practices
no-document-write1
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best-practices
external-anchors-use-rel-noopener
1
82
best-practices
geolocation-on-start1
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best-practices
no-vulnerable-libraries1
84
best-practices
notification-on-start1
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best-practices
deprecations1
86
best-practices
manifest-short-name-length1
87
best-practices
password-inputs-can-be-pasted-into
1
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best-practices
errors-in-console1
89
best-practices
image-aspect-ratio1
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