SaaS Metrics calculator

SaaS Revenue Churn Calculator

Calculate gross revenue churn from starting MRR and churned MRR.

Your inputsStart with your numbers
Scenario referenceSaaS Metrics planning model

Revenue churn = Churned MRR ÷ Starting MRR × 100

Change one input at a time to see what drives the result.
Live estimateYour result
● Updates instantly
Gross revenue churn6%
Churned MRR1,800
Decision tip

Try a conservative, expected and optimistic scenario before you decide.

✓ Free to use✓ No account or saved data✓ Formula shown below
How to use

Enter the values used by revenue churn

Calculate gross revenue churn from starting MRR and churned MRR. Enter the assumptions for the same time period and currency, and check any minimum or maximum values displayed next to the input fields.

01
Record your inputs

Churned MRR, Starting MRR.

02
Compare a second case

Change one variable so you can see the effect without mixing several assumptions.

03
Check the calculation

The worked example below shows the formula and the independently rendered default-input results.

Complete worked example

Calculate revenue churn from sample inputs

These are the same starting values loaded into the interactive calculator above. The displayed results below come from the same calculation engine as the live tool.

Step 1 — Record the inputs

Churned MRR$1,800
Starting MRR$30,000

Step 2 — Identify the formula

FORMULARevenue churn = Churned MRR ÷ Starting MRR × 100

Step 3 — Substitute the values

For this exact worked case, use Churned MRR = $1,800; Starting MRR = $30,000. Replace named formula variables with their input values as shown below. Keep the units consistent; a percent is divided by 100 wherever the model requires a decimal rate.

NUMERIC SUBSTITUTIONRevenue churn = $1,800 ÷ $30,000 × 100

Step 4 — Read the calculated answer

Gross revenue churn6%
Churned MRR1,800

Rounding follows the calculator display: whole units may be rounded up when an indivisible unit is required, while other values typically show up to two decimal places. The result is conditional on the entered assumptions, not a market quotation.

Decision interpretation

How to interpret this revenue churn result

Gross churn excludes expansion revenue. Track net revenue retention separately to see the combined picture.

Apply the revenue churn result to a decision using the same scope, time period and units as your recorded inputs.

Scenario comparison

Change one relevant assumption at a time and record which scenario changes the revenue churn outcome materially.

Assumptions and limitations

The revenue churn calculation covers the listed variables only. Confirm any omitted costs, eligibility rules and definitions before acting.

  • Churned MRR: Enter a finite monetary value of at least 0. Use a consistent definition across comparison cases.
  • Starting MRR: Enter a finite monetary value of at least 0. Use a consistent definition across comparison cases.

Frequently asked questions

What does this calculator include?

It uses the named inputs above and the formula shown in the worked example. No other fees, revenue streams, or external data are automatically included.

Why could my real result be different?

The revenue churn calculation covers the listed variables only. Confirm any omitted costs, eligibility rules and definitions before acting.

How should I compare two results?

Change one relevant assumption at a time and record which scenario changes the revenue churn outcome materially. Record the assumption that changed so a higher or lower answer is interpretable.

Transparent formula

Revenue Churn calculation method

CORE FORMULARevenue churn = Churned MRR ÷ Starting MRR × 100

Gross churn excludes expansion revenue. Track net revenue retention separately to see the combined picture.

Use with care

What this estimate does—and does not—include

This tool is designed for quick planning and comparison. For tax, accounting, legal, investment, lending, or other regulated decisions, verify the result against the rules and assumptions that apply to your situation.

CalcScoutHQ shows the calculation logic so you can check assumptions, understand the result, and reproduce the math independently when needed.