Free tool

Survey Response Rate Calculator

Response rate = completed responses ÷ (surveys sent − bounced or undelivered) × 100. Count only completed answers, not people who opened the survey and left.

Response rate

20%

Delivered

1,920

Delivered = surveys sent-bounced or undelivered = 1,920
Response rate = (completed responses ÷ delivered × 100) = 20%

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Survey response rate formula in Excel or Google Sheets

Put the inputs in column B from row 2, then paste the formulas below. They work the same in Excel and Google Sheets.

CellWhatValue or formulaExample
B2Surveys sent20002000
B3Bounced or undelivered8080
B4Completed responses384384
B6Delivered=B2-B31920
B7Response rate (%)=ROUND(B4/B6*100,1)20

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Frequently asked questions

How do you calculate survey response rate?
Subtract bounced emails from surveys sent, then divide completed responses by that number. 384 completed out of 1,920 delivered is a 20% response rate.
What is a good survey response rate?
For email surveys to customers, 10–30% is common. Short in-app or post-ticket surveys often reach 30–50%. A rate that falls over time usually means surveys are too long or too frequent.
How many responses do I need?
Enough for the margin of error you accept. For a 5% margin at 95% confidence you need about 385 responses from a large customer base; the survey sample size calculator does the maths.
Abdessamad Ghanem

About the author

Abdessamad Ghanem

Customer Experience & Customer Success Consultant · Founder of Clarivoxx

Abdessamad Ghanem works across Customer Support, Sales, Customer Success, Account Management and Partner Management. He writes Clarivoxx Insights for B2B SaaS professionals who own retention, adoption and customer outcomes.