Sample Size Calculator

Determine the optimal number of participants for your user research study based on method, study complexity, and confidence requirements.

Unmoderated Tests

Prototype, card sort, tree test, preference, first click, five second tests & surveys

Moderated Studies

User interviews with direct interaction and deep insights

Research Ready

Instant calculations based on UX research best practices

User Research Method

Select your research method and provide the required parameters

Research Method

Ready to Calculate

Select your user research method and provide the required parameters to calculate your sample size.

User Research Guidelines

  • Select your research method and provide the required parameters
  • Consider recruiting 10-20% extra participants to account for no-shows and dropouts.
  • For diverse user bases, ensure your sample represents different user segments.
  • Qualitative research focuses on depth over quantity - fewer participants with richer insights.

Get reliable research results with Lyssna

Once you know your sample size, Lyssna helps you recruit the right participants and collect feedback fast.

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