ARR vs MRR Calculator

Convert ARR to MRR (and MRR to ARR) and understand the ARR vs MRR relationship.

ARR and MRR are the same run-rate at different time units. ARR is typically MRR x 12; MRR is ARR / 12.

This calculator converts between ARR and MRR and helps you sanity-check consistency when you have both numbers.

Prefer an explanation- Read the guide.
Related definitions:arrmrr
 
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Tip: you can type commas (e.g., 10,000).

Example

Using the default inputs, the result is:
$2,400,000.00
MRR
$200,000
ARR
$2,400,000

How to calculate

  1. Enter MRR to compute ARR (MRR x 12).
  2. Enter ARR to compute MRR (ARR / 12).
  3. If you enter both, compare the implied numbers to spot definition drift.

Formula

ARR = MRR x 12; MRR = ARR / 12
  • Assumes you are converting a recurring run-rate (not recognized revenue).
  • Assumes ARR is annualized from monthly run-rate (12x) rather than a contracted total.

FAQ

Is ARR the same as annual revenue-
Not always. ARR is a run-rate snapshot of recurring revenue. Annual revenue is what you recognize over a year and can include one-time items.
Should ARR always equal MRR x 12-
If both are defined as recurring run-rate, yes. If they don't match, it usually means definitions differ (one-time items, active base, annualization) or the numbers are from different dates.

Common mistakes

  • Including one-time fees or services in recurring run-rate.
  • Mixing recognized revenue (accounting) with run-rate metrics (MRR/ARR).
  • Using ARR as a promise of next-12-month revenue (it's a snapshot).

How to interpret

ARR vs MRR tips
  • Use MRR for monthly momentum and decomposition (new/expansion/churn).
  • Use ARR to compare scale and for many efficiency metrics (burn multiple, magic number).
  • Avoid mixing bookings/cash timing into run-rate metrics.

Quick checks

  • Keep time units consistent (monthly vs annual) across inputs and outputs.
  • Segment by cohort/channel/plan before trusting a blended average.
  • Use the related guide to avoid common definition and denominator mismatches.