How to Calculate Email Response Rate Surveys for Research


Email is now the preferred method for conducting surveys for research. Sending surveys through emails elicits a quick response. This reduces the time taken to plan and conduct the survey and also the time required to collate information and arrive at a conclusion. If you know your population and the number of responses, calculating email response rate is easy.

Things You'll Need

  • Survey population size
  • Detailed numbers in terms of responses


  • Gather the necessary information with regard to your survey. This includes the total cost of the survey, the number of questions on the survey and the total number of emails that were distributed.

  • Find the number of emails that bounced back from the email address of the recipient. Deduct this number from the total number of emails sent as it would not apply towards calculation of response rate.

  • Gather and divide the surveys in terms of completed, partially-completed, clicked-through or opened and delivered but not opened. While the final survey rate is only calculated using completed survey forms, the remaining data is also necessary for the final reporting.

  • Calculate the response rate for completed surveys using the following formula:

    Number of Surveys Completed / Number of participants emailed = Response rate.

    For example, if you sent out 200 emails and received a total of 40 responses with completed surveys, your survey response rate would be:

    40 / 200 = 0.2 * 100 = 20%

    Similarly calculate the response rate for partially-filled surveys.

  • Calculate your average response rate by deriving an average from the total completed surveys and partially-completed surveys.

    Total completed survey rate + partially-completed survey rate / 2 = Average survey rate

    For example: (20% + 18%) / 2 = 19 percent

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