# Free survey response rate calculator

> Free survey response rate calculator. Enter how many people you invited and how many answered to see your response rate, with undelivered invites left out.

Free tool by Reuily · Updated 2026-10-15

Canonical: https://reuily.com/tools/survey-response-rate-calculator

See what share of the people you invited answered your survey.

The interactive tool is at https://reuily.com/tools/survey-response-rate-calculator. To do it yourself:

1. Take the number of invites you sent and subtract any that never arrived, such as bounced emails.
2. Response rate = responses ÷ delivered invites × 100.
3. Write the result as a percentage.

## How to use the response rate calculator

1. **Enter your responses.** Count the people who finished the survey.
2. **Enter how many people you invited.** Use the number you sent the survey to.
3. **Add undelivered invites if you know them.** Bounced emails never reached anyone, so they are left out of the rate.

## How do you calculate a survey response rate?

> Response rate = responses ÷ delivered invites × 100

For example, if you email 500 customers, 20 emails bounce and 86 people answer, your response rate is 86 ÷ 480 × 100 = **17.9%**.

Count a response only when someone finishes the survey. If you also want to know how many people started and stopped, that is your completion rate, which you can track separately.

## What is a good survey response rate?

It depends on who you ask and how. People who know you well answer more often than people who barely remember you.

| Who you survey | What many teams see |
| --- | --- |
| Customers, by email | Around 10% to 30% |
| Customers, right after a purchase or chat | Higher, often 30% or more |
| Your own employees | Often 50% or more |

Treat these as a starting point. The most useful comparison is your rate this time against your rate last time.

## How to raise your response rate

- **Keep it short.** Say how long it takes, and make that true.
- **Ask at the right moment.** A survey sent straight after an interaction gets more answers than one sent weeks later.
- **Make it easy on a phone.** Many people open survey links on their phone first.
- **Send one reminder.** A single follow up a few days later often brings a second wave of answers.
- **Share what you changed.** People answer again when they see the last survey led somewhere.

## Frequently asked questions

### Should I count partial responses?

Count only finished surveys in your response rate. Track people who started and stopped as a separate number, so you can see where they left.

### What if I shared the survey with a link instead of sending invites?

Without a known number of invites there is no response rate. Use views instead: responses divided by the number of people who opened the survey gives your completion rate.

### Why leave undelivered invites out?

Someone whose email bounced never had the chance to answer, so counting them would make your rate look lower than it is.

### Is a low response rate a problem?

Not always. A small, honest sample can still be useful. It matters most when the people who answered are very different from those who didn't.

### Is my data saved?

No. The calculator runs in your browser, and the numbers you enter are not sent anywhere or saved.

## Templates that go with it

- [Customer Satisfaction (CSAT) Survey](https://reuily.com/templates/customer-satisfaction-survey): Two quick questions after a purchase or support chat.
- [Net Promoter Score (NPS) Survey](https://reuily.com/templates/nps-survey): The standard 0 to 10 question with a follow up on why.
- [Employee Feedback Survey](https://reuily.com/templates/employee-feedback-survey): A short pulse survey staff can finish in minutes.
- [Course Evaluation Form](https://reuily.com/templates/course-evaluation-form): Ratings and comments from students at the end of a course.