PSSUQ Calculator

Enter participant scores, then hit Calculate. Scores must be whole numbers between 1 and 7.

System Usefulness (Q1–6) —

Information Quality (Q7–12) —

Interface Quality (Q13–16) —

Overall PSSUQ Score —

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1 = Strongly Agree · 7 = Strongly Disagree · Lower = better usability

Participant Numbers ↓	System Usefulness						Information Quality						Interface Quality
Participant Numbers ↓	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16

Tip: you can paste data directly from Excel or Google Sheets — click any cell, then paste.

New to the PSSUQ?

Download the ready-to-print questionnaire and give it to your participants after a usability session. No UX experience required — just hand it out, collect the forms, and enter the scores above.

Download Questionnaire (PDF)

Research Tool

What is the PSSUQ?

The Post-Study System Usability Questionnaire (PSSUQ) is a standardised survey used by UX researchers to measure how usable a system feels after people have tested it.

Participants rate 16 statements on a scale from 1 (Strongly Agree) to 7 (Strongly Disagree). A lower score means better usability.

The three subscales

System Usefulness (Q1–6) Was the system easy and efficient to use?

Information Quality (Q7–12) Were on-screen messages and help clear?

Interface Quality (Q13–16) Was the interface pleasant and satisfying?

How to use this calculator

Download and print the questionnaire above. Give it to participants after a usability session.

Enter each participant's scores in the table — one row per person, one column per question (1–7 only).

You can paste directly from Excel or Google Sheets. Click the first cell, then paste.

Use Add rows / Remove rows to match your sample size.

Hit Calculate. Subscale averages and the overall PSSUQ score appear at the top.

Use Download Results to export your data and scores as an Excel file.

Reading the score

Excellent Poor

Scores below 3 are generally considered very good. Above 4 warrants further investigation.