FreeCalculators

SaaS Metrics Calculator

Easily calculate key SaaS metrics such as MRR, ARR, and churn rate to enhance your business strategy and performance.

Business & Tax · Reviewed by FreeCalculators Editorial · Updated 2026-09-01

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How it works

The SaaS Metrics Calculator helps you evaluate essential metrics for your Software as a Service business, including Monthly Recurring Revenue (MRR), Customer Lifetime Value (LTV), and the LTV/CAC Ratio. To calculate the Monthly Churn Rate, divide the number of customers lost in a month by the total number of customers at the start of the month, then multiply by 100. For example, if you have 500 customers and lose 25, the churn rate would be (25 / 500) * 100 = 5%. The Customer LTV is calculated by multiplying the MRR per customer by the average customer lifespan in months. If your MRR is $50,000 and you have 500 customers, the MRR per customer is $100. If the average customer lifespan is 24 months, LTV = $100 * 24 = $2,400. Finally, the LTV/CAC Ratio is calculated by dividing LTV by Customer Acquisition Cost (CAC). If your CAC is $200, then the ratio is $2,400 / $200 = 12. This means for every dollar spent on acquiring a customer, you can expect to earn $12 in return.

Tips

  • Regularly track your churn rate to identify trends and address potential issues before they escalate.
  • Invest in customer success initiatives to improve retention and extend customer lifespans.
  • Analyze your CAC and adjust marketing strategies to ensure you're acquiring customers cost-effectively.
  • Use the LTV/CAC ratio to guide your budget decisions, aiming for a ratio of 3:1 for sustainable growth.

Frequently asked questions

What is a good Monthly Churn Rate for a SaaS business?
A good Monthly Churn Rate is typically below 5%.
How can I improve my Customer Lifetime Value?
Improve Customer Lifetime Value by enhancing customer support, providing regular updates, and offering personalized experiences.
What does the LTV/CAC ratio tell me?
The LTV/CAC ratio indicates how much value you gain from customers compared to what you spend to acquire them. A ratio of 3:1 is considered healthy.
How often should I calculate these SaaS metrics?
You should calculate these metrics monthly to stay on top of your business performance and make informed decisions.