SaaS & growth

Expansion MRR Calculator

Separate upgrades and add-ons to measure expansion within an existing customer base.

No sign-upBrowser-only calculationsFormula & methodology
01

Your numbers

Use one currency and the same reporting period. Sample values are filled in to help you start.

currency
currency
currency

Your numbers stay in this browser.

02

Example result

Expansion MRR1,500in your chosen currency
Expansion rate
15%

Exclude new customers and reactivations unless your reporting definition explicitly includes them. Churn is not subtracted.

Understand the result

How to calculate it

Expansion rate = (upgrade MRR + add-on MRR) ÷ starting cohort MRR × 100

Exclude new customers and reactivations unless your reporting definition explicitly includes them. Churn is not subtracted.

Worked example

This is an illustrative scenario, not a market benchmark. Select “Reset to example” to reproduce it in the calculator.

Upgrade MRR added
1,200 currency units
Add-on MRR added
300 currency units
Starting cohort MRR
10,000 currency units

Expansion MRR: 1,500

Common questions

Expansion MRR FAQ

How does this differ from NRR?

Expansion isolates revenue added from the cohort. NRR also subtracts cancellations and contractions.

What does this calculation leave out?

Exclude new customers and reactivations unless your reporting definition explicitly includes them. Churn is not subtracted.

Are my inputs saved or sent to a server?

Calculations run in your browser. We do not send your inputs or results to our server or analytics. A comparison stays in this tab until it is refreshed. A CSV is saved only when you choose to download it. See our privacy policy for ordinary hosting and optional analytics data.

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