Survey Response Rate Calculator
Compare simple complete and partial participation with an entered target.
What would you like to do next?
Keep complete and partial responses separate
Enter eligible invitations delivered, complete responses, partial responses and a target completion percentage. The calculator reports complete responses divided by delivered eligible invitations, complete-plus-partial participation and the additional completes needed to reach the entered target. Counts are constrained so responses cannot exceed invitations.
Do not label the simple ratio as a formal outcome rate
Standard survey response rates can require detailed final disposition codes, treatment of unknown eligibility and a declared formula. A higher simple completion percentage alone also does not prove the absence of coverage, measurement or nonresponse error. Use this page for a transparent operational summary and follow the required methodology for research reporting.
Frequently asked questions
What denominator does this tool use?
It uses the entered eligible invitations delivered.
Are partial responses included in completion rate?
No. They are shown separately in complete-plus-partial participation.
Is this automatically an AAPOR response rate?
No. Formal outcome rates require disposition codes and a declared standardized formula.