MRR vs ARR: Which SaaS Revenue Metric to Use?

Editorial attribution: BizCalcAtlas editorial team. Formula and source provenance follow the published methodology.

MRR vs ARR: Which SaaS Revenue Metric to Use? explains MRR vs ARR with the same definitions and calculation method used by the linked tools. Use the method for a consistent scenario, then verify any current rate, legal rule, or platform policy against the cited source.

Answer in brief

ARR = MRR × 12 MRR = ARR / 12

Scope and definitions

This guide owns the informational intent; linked calculator pages continue to own interactive calculator intent.

The guide supports Monthly Recurring Revenue Calculator; ARR Calculator; SaaS Revenue Calculator. Keep the numerator, denominator, cost categories, fee base, and time period consistent from the first input through the final comparison.

Calculation method

Step	Calculation or rule
1	ARR = MRR × 12 MRR = ARR / 12

Formula / rule

ARR = MRR × 12
MRR = ARR / 12

Worked example

A SaaS company has $250,000 MRR under its documented recurring-revenue policy. Annualizing that run rate gives $3 million ARR. If MRR changes to $270,000 next month, the new annualized run rate is $3.24 million; ARR should not be interpreted as revenue already earned for the next year.

Practical reference

Record the relevant scenario fields together before calculating. The implementation brief calls for these comparison fields: Metric, Example. Using one record prevents values from different periods or scopes from being mixed.

Common mistakes

Using a different definition or time period from the one specified by the MRR vs ARR method.
Comparing outputs from Monthly Recurring Revenue Calculator; ARR Calculator; SaaS Revenue Calculator without holding the shared assumptions constant.
Treating a worked scenario as a universal target instead of testing the inputs that apply to the business.
Relying on an undated secondary claim when the listed first-party or official source governs a current rate or rule.

Frequently asked questions

Is ARR simply MRR times 12?

MRR vs ARR: Which SaaS Revenue Metric to Use? uses the defined method and scope above. Keep the calculation consistent with Monthly Recurring Revenue Calculator; ARR Calculator; SaaS Revenue Calculator and do not treat the example as a universal recommendation.

Is ARR the same as annual revenue?

Which is better for monthly operating reviews?

How this guide was created and tested

Method basis: the guide uses the same definitions and method boundaries as the linked calculator family and the audited implementation package.
Validation coverage: the linked calculators currently contribute 6 audited release test vectors to the underlying calculation methods used by this guide.
Source hierarchy: current rates, fees, laws, or platform rules prefer government and first-party sources; educational and industry references are supporting evidence rather than silent overrides.
Automation and AI: automation or AI may assist drafting, organization, source grouping, and regression work, but it is not treated as an authoritative source and cannot replace the cited evidence or audited formula.
Editorial responsibility: MIASIN S.R.O. controls publication, source policy, corrections, and release decisions. No named individual expert review is claimed unless a page explicitly identifies one.

Read the full Methodology, Editorial Standards, and Corrections Policy.

Sources and review

Sources are ordered by authority: government or official sources first, then first-party platform sources, educational references, and finally supporting industry references.

First-party / platform source: Stripe
First-party / platform source: Stripe
Supporting industry reference: chartmogul.com

Last reviewed: October 5, 2026
Source set reviewed: October 5, 2026
Next scheduled review: April 5, 2027
Review guidance: Recheck MRR and ARR definitions and linked calculator methodology.