Sample size calculator
How many respondents do you actually need?
Most amateur questionnaires fail on wording: double-barrelled questions, suggested answers, wobbly scales. The tool applies the drafting rules of a research questionnaire and keeps you out of those traps.
Product and marketing teams who want to survey their customers without an agency, and marketing students.
Explain the goal of your study and the respondent profile you are after.
The tool proposes a structured questionnaire, question by question.
Adjust, export, field it — or have a synthetic panel answer it in Panelia.
How many respondents do you actually need?
Structured buyer profiles in a few minutes
1,000 AIs asked about the 2027 French presidential election