System Usability Scale

The System Usability Scale (SUS) is a score used for usability testing. It involves scenarios for users to complete and a standardized questionnaire to measure how well it went.

Updated on February 6th, 2024


The average SUS score is 68. You've done well when the outcome of your SUS test is 68 or higher. You can also do multiple tests every now and then to see whether your new design positively impacts usability.

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