AbraCalc

ARR Calculator

Calculate Annual Recurring Revenue (ARR) from MRR or from active customers and annual contract value.

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How to use this tool

  1. Enter monthly recurring revenue (mrr), customers on annual plans and annual contract value (acv) per annual customer in the fields above.
  2. Results update instantly as you type — or click Calculate.
  3. Read your arr (from mrr × 12) and the full breakdown beneath it.

ARR is the annualised view of recurring revenue. Investors, boards, and M&A teams use ARR multiples to value SaaS companies — understanding your ARR trajectory is essential.

Formula

ARR from MRR = MRR × 12

ARR from Annual Contracts = Annual Customers × ACV per Customer

Combined ARR = ARR from MRR + ARR from Annual Contracts

How it works

This calculator produces three ARR figures: the annualised value of monthly recurring revenue (MRR × 12), the ARR locked in by annual contracts (customer count multiplied by per-customer annual contract value), and a combined total of both streams.

Combining the two streams is appropriate only when the monthly and annual customer bases are mutually exclusive; adding them together for overlapping populations would double-count revenue. Use the combined figure only if your monthly and annual customer cohorts do not overlap.

Worked example

Worked example

  1. MRR = $9,800; ARR from MRR = $9,800 × 12 = $117,600.
  2. Annual customers = 50; ACV = $1,200 each.
  3. ARR from annual contracts = 50 × $1,200 = $60,000.
  4. Combined ARR = $117,600 + $60,000 = $177,600.

ARR from MRR = $117,600; ARR from annual contracts = $60,000; combined ARR = $177,600.

Key terms

ARR (Annual Recurring Revenue)
The annualised value of all active recurring subscription contracts; the primary top-line metric for SaaS businesses.
MRR (Monthly Recurring Revenue)
Predictable monthly subscription revenue; multiplied by 12 to annualise.
ACV (Annual Contract Value)
The total value of a single customer contract normalised to one year, excluding one-time fees.
Annualisation
Scaling a shorter-period metric (such as monthly revenue) to a full-year equivalent; assumes the current rate holds for 12 months.

Frequently asked questions

What is the difference between ARR and MRR?
MRR (Monthly Recurring Revenue) is the monthly view; ARR (Annual Recurring Revenue) is the annualised view. ARR = MRR × 12. Both measure the same recurring revenue stream but at different cadences.
Does ARR include one-time fees?
No. ARR only includes normalised, predictable recurring revenue. One-time implementation fees, professional services, and non-recurring charges are excluded because they do not recur.

References & sources