8 Best Free Online Customer Retention Rate Calculator Websites

Here is a list of best free online customer retention rate calculator websites. Customer retention rate is a measuring parameter that highlights the percentage of customers retained over a specific time period. It helps businesses evaluate and find the best strategies to retain as many customers as possible for longer periods. A higher customer retention rate indicates that a business is able to maintain a loyal customer base which will lead to more revenue and overall business success. If you also want to calculate the customer retention rate, then check out these online customer retention rate calculator websites.

Using these websites, users can quickly calculate customer retention rate value. To perform the calculation, these websites need three primary parameters namely an Initial number of customers, customers acquired during a specific time period, and number of customers remaining at the end. Some of these websites also let users specify a specific time period (1 month, 3 months, 9 months, etc.) for customer retention rate calculation. For new users and students, they also explain the customer retention rate and highlight the formula that they use to perform the calculation. I have also included the necessary calculation steps in the description of each website.

These websites also offer some additional tools such as Bounce Rate Calculator, Churn Rate Calculator, Email Marketing, etc. Go through the list to know more about these websites.

My Favorite Online Customer Retention Rate Calculator Website:

clevertap.com is my favorite website because it lets users specify different time periods for customer retention rate calculation. Plus, it can also be used to calculate the customer churn rate value.

You can also check out lists of best free online Online Voting, Online Growth Rate Calculator, and Online Run Rate Calculator websites.

Comparison Table:

Features/Website Names	Lets users change time period	Can also calculate Attrition Rate/ Churn Rate	Shows Calculation Formula
clevertap.com	✓	✓	x
salesken.ai	✓	x	✓
omnicalculator.com	x	x	✓
webengage.com	x	x	✓
beyondfeedback.com	x	✓	x
startbonsai.com	x	✓	✓
lido.app	x	x	✓
fitsmallbusiness.com	x	x	x

clevertap.com

clevertap.com is a free online customer retention rate calculator website. Using this website, users can calculate the customer retention rate of up to the last 9 months. Users can also choose one, three, and six-month time periods. To calculate the customer retention rate, it requires three input parameters namely Number of customers at the start of the period, Number of customers acquired during the period, and Number of customers at the end of the given period.

This calculator can also calculate some important parameters like Customer Growth Rate (Current and Annualized), Growth Rate Percentage, Customer Churn Rate, and Customer Churn Rate Percentage. Now, follow the below steps.

How to perform customer retention rate calculation online using clevertap.com:

Start this website and access the customer retention rate calculator.
After that, select the time period.
Next, enter all three primary values.
Finally, click on the Calculate button to view the customer retention rate value in percentage.

Additional Features:

This website also offers additional online tools like Dollar Retention Rate Calculator, Behavioral Analytics, Lifecycle Optimization, and more.

Final Thoughts:

It is one of the best free online customer retention rate calculator websites through which users can calculate customer retention rates for different time periods.

Pros	Cons
Can calculate customer retention rate for different time periods

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salesken.ai

salesken.ai is another free online customer retention rate calculator website. This website comes with a good set of customer retention calculators such as customer retention rate calculator, customer retention rate improvement, and customer retention value. It also lets users calculate customer retention rate for the last one, three, and six months. Besides this, I also like its ability to calculate customer growth and customer churn values.

To help new users, this website also explains customer retention rate topic and shows the formula to calculate one. Now, follow the below steps.

How to perform customer retention rate calculation online using salesken.ai:

Visit this website and open up the customer retention rate calculator.
Now, specify the time period.
Next, enter the number of customers at the beginning, end, and acquired during a specified time period.
Finally, let this website perform the calculation and view the final customer retention rate percentage.

Additional Features:

This website also offers online services and solutions for Sales, Sales Enablement, Sales Operations, Logistics, Insurance, Healthcare, and more.

Final Thoughts:

It is another capable customer retention rate calculator that allows users to calculate retention rate for different time periods.

Pros	Cons
Lets users change the time period
Shows calculation formulas
Explains the customer retention rate

Home Page

omnicalculator.com

omnicalculator.com is a free and popular online calculator website that can also be used as a customer retention rate calculator. This website not only calculates customer retention rates, but also explains what is customer retention rate and provides steps to calculate it. It also highlights the formula that it uses to perform the calculation. Like other similar websites, it also requires some input parameters to perform the calculation namely Existing Customers, Total Customers, and New Customers. Using the same set of input values, it also calculates and shows the Attrition Rate in percentage. Now, follow the below steps.

How to perform customer retention rate calculation online using omnicalculator.com:

Go to this website and access this calculator.
After that, enter existing customers, new customers, and total customers values.
Finally, view the calculated customer retention rate and attrition rate percentages.

Additional Features:

This website offers many additional calculators such as Bounce Rate, Break-Even, Churn Rate, CPM, Cost of Doing Business, etc.

Final Thoughts:

It is another simple online customer retention rate calculator that also explains the process of calculation.

Pros	Cons
Explains calculation process
Shows calculation formula

Home Page

webengage.com

webengage.com is another free online customer retention rate calculator website. This website helps users calculate how well they are retaining their customers. As you access this website, it first offers a customer retention rate definition and shows the formula that it uses to find out the customer retention rate. As input, it needs the Number of customers at the start of a period, number of customers acquired, and number of customers at end of a period. Now, follow the below steps.

How to calculate customer retention rate online using webengage.com:

Start this website and access the Retention Rate Calculator.
After that, manually enter all three required input values.
Next, click on the Calculate button to view the retention rate in percentage.

Additional Features:

This website also offers online services like Email Marketing, SMS Marketing, Whatsapp Engagement, Web Push Notifications, etc.

Final Thoughts:

It is another good online customer retention rate calculator website that anyone can use with ease.

Pros	Cons
Shows customer retention rate calculation formula

Home Page

beyondfeedback.com

beyondfeedback.com is another free online customer retention rate calculator website. Through this website, users cannot only calculate Customer Retention Rate, but also calculate Customer Retention Value, and Customer Retention Improvement value. It also lets users choose either 1 month, 3-months, or 12 months time period for customer retention rate calculation. It also requires the initial number of customers, customers gained during a given duration, and number of customers at the end of a specified duration. According to the provided values, it performs the calculation and shows Retention Rate, Attrition Rate, number of lost customers, and net new customer growth values. Now, follow the below steps.

How to perform customer retention rate online using beyondfeedback.com:

Go to this website and choose the customer retention rate calculator.
After that, specify the time period.
Next, enter all three required values.
Finally, view the calculated retention rate and attrition rate percentage values.

Additional Features:

This website also comes with additional online tools related to Customer Insights and Employee Insights.

Final Thoughts:

It is another good online customer retention rate calculator website that also calculates attrition rate, number of lost customers, and net new customer growth.

Pros	Cons
Can also calculate Attrition rate and number of lost customers
Also offers additional Retention calculators

Home Page

startbonsai.com

startbonsai.com is another free online customer retention rate calculator website. This website comes with both customer retention rate and attrition rate calculators. Plus, they use the same set of input values to do that which are Initial number of customers, customers acquired during a specific time period, and number of customers remaining at the end. Unlike other similar websites, it doesn’t let users specify the time period of the experiment.

This website also explains both the customer retention rate and customer attrition rate. In addition to that, it also shows formulas that it uses to perform the calculation. Now, follow the below steps.

How to perform customer retention rate calculation online using startbonsai.com:

Visit this website using the given link.
After that, select the Retention Rate calculator.
Next, enter all tree required values.
Finally, view the calculated retention rate percentage.

Additional Features:

This website also offers blogs related to SEO, Marketing, Sales, Social Media, etc.

Final Thoughts:

It is another capable online customer retention rate calculator website that also helps users calculate the customer attrition rate values.

Pros	Cons
Can also calculate the Attrition rate
Shows calculation formulas

Home Page

lido.app

lido.app is another free online customer retention rate calculator website. This website also explains the customer retention rate calculation formula and shows all its parameters to help users understand better. The process to perform the calculation is quite straightforward. As users just need to enter the Number of customers at the beginning, at the end, and acquired during a time period. After performing the calculation, it shows the output in percentage that users can copy. Now, check out the below steps.

How to perform customer retention rate calculation online using lido.app:

Visit this website using the provided link.
After that, enter the three required values as mentioned above.
Next, click on the Calculate Customer Retention Rate button.
In the end, view the retention rate percentage.

Additional Features:

It also offers useful online calculators such as Click Through Rate, ROAS, Facebook Ad Cost, and CPC Calculators.

Final Thoughts:

It is a good online customer retention rate calculator that helps users find out the percentage of customers they are retaining during a specific time period.

Pros	Cons
Explains and show the calculation formula	Doesn’t let users specify the calculation time period

Home Page

fitsmallbusiness.com

fitsmallbusiness.com is the last free online customer retention rate calculator website. This website offers a great environment to learn and calculate customer retention rate values. Apart from calculating the customer retention rate, users can also find customer retention rate by industry, strategies for customer retention, and various important retail metrics. Now, follow the below steps.

How to perform customer retention rate online using fitsmallbusiness.com:

Visit this website and Customer Retention Rate section.
Now, specify the number of customers at the start, end, and acquired during a specific time period.
After that, click on the Calculate button to view the calculated customer retention rate value.

Additional Features:

This website also offers tools and learning material related to Retail, Sales, Marketing, Accounting, and Real State.

Final Thoughts:

It is a good online customer retention rate calculator that also offers all the relevant customer retention data of the industry.

Pros	Cons
Provides customer retention rate data of the industry	Doesn’t let users specify the calculation time period
	Doesn’t provide the customer retention rate calculation formula

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Frequently Asked Questions

How do you calculate customer retention rate?

To calculate the customer retention rate, you need two pieces of information namely the number of customers at the start of a specific period (let's call it "C_start") and the number of customers at the end of that period (let's call it "C_end"). Now, enter the C_Start and C_end values in this formula: Customer Retention Rate = ((C_end - C_new) / C_start) x 100.

What is 100% customer retention rate?

A 100% customer retention rate signifies that a company has successfully retained all of its existing customers over a specific period. It indicates that no customers were lost or churned during that time frame. Achieving a 100% customer retention rate is generally considered an ideal scenario for businesses. It demonstrates strong customer satisfaction, loyalty, and successful ability to meet or exceed customer expectations.

Can retention rate be over 100?

No, a customer retention rate cannot be over 100%. The retention rate is a percentage that represents the proportion of customers you have retained compared to the number of customers you had at the start of a specific period. The maximum retention rate possible is 100%, which means that you have successfully retained all of your customers. This indicates that no customers were lost or churned during that period, and you maintained your entire customer base.

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