Annual Recurring Revenue (ARR) Calculator

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Illustrative calculation; verify inputs and assumptions before relying on it.

ARR—

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ARR = MRR × 12
Variable Meaning
MRR Monthly recurring revenue.

Worked example

MRR
$10,000
→ ARR
$120,000

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What ARR measures

Published by 4NLab · Updated · Our methods

ARR is annual recurring revenue, the annualized subscription revenue base of a SaaS company.

Prepare your inputs

  1. Start with a reconciled recurring revenue schedule, excluding one-time services and uncommitted pipeline.
  2. For a monthly run-rate definition, multiply current MRR by 12. If you use a contracted ARR definition, document when a signed contract enters and leaves the measure.
  3. Show the starting ARR, new subscriptions, expansion, contraction, and churn alongside the ending balance. Label the date and currency.

Formula

ARR = MRR × 12
Variable Meaning
MRR Monthly recurring revenue.

Check the sample calculation

Worked example

MRR
$10,000
→ ARR
$120,000

Before using the result

  • ARR is not cash in the bank, a valuation, or a promise that all customers will renew.
  • Do not add expected renewals or unsigned deals to current ARR. Keep forecasts in a separately labeled series.
  • Annualizing a temporary usage spike can overstate the recurring base. Explain how variable consumption is handled.

A dash means the result is undefined for the inputs, such as division by zero. Review the assumptions and input errors before interpreting it.

Read the ARR guide for a business scenario, interpretation, and frequently asked questions.

Check how your team defines ARR before relying on the result.

Sources and methodology

The references below explain the underlying methods. Our worked scenarios use hypothetical figures; they are not company results or current market benchmarks.

Found an error or a definition that differs from your reporting? Send a correction with the page URL and the method you use.