B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
68
68 -- system usability scale score for System Usability Scale respondents (2026)
The average System Usability Scale (SUS) score is 68.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
68
Unit
Score
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
uxtweak.com
Primary
Tier B
https://www.uxtweak.com/usability-testing/metrics/ ↗
Source Article
Usability Testing Metrics
Usability testing metrics are essentially used to quantify the usability of your product, evaluate it based on different criteria and use this data to inform further design iterations as well as compare results and track success.
They help to make sense of the data obtained in usability studies and …
Original Research
uxtweak.com
· Original study ↗
Methodology
Long-standing aggregate benchmark for the 10-question SUS questionnaire
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
System Usability Scale respondents: 68 system usability scale score. Source: uxtweak.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/average-sus-score-usability
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<blockquote cite="https://lighthousedata.io/data/average-sus-score-usability" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>68</strong> -- system usability scale score for System Usability Scale respondents<br><small>Source: uxtweak.com (2026) · <a href="https://lighthousedata.io/data/average-sus-score-usability" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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