ARR Calculator

Calculate ARR from MRR, subscriptions, customers, or contract values for SaaS reporting and revenue planning.

Last reviewed May 27, 2026 by CalcMastery Editorial Team; Reviewed by CalcMastery Finance Review Team

ARR Calculator (Annual Recurring Revenue)

Compute ARR from MRR, Customers × ARPU, or Customers × ACV. Optionally include net new components (new, expansion, churn, contraction) to see ending ARR and growth. Clean UX with scenarios and What It Means insights.

From MRRCustomers × ARPU (monthly)Customers × ACV (annual)

Choose how you want to provide inputs. The calculator adapts fields accordingly.

$/mo

Total recurring revenue per month across all active subscriptions (exclude one-time fees).

Number of active paying customers/accounts.

$/mo

Average revenue per user (per month). Use weighted average across plans.

$/yr

Average annual recurring revenue per customer (exclude one-time setup/professional services).

Optional: add this month’s new, expansion, churn, and contraction to see net new ARR and ending ARR.

$/mo

MRR from brand‑new customers this month.

$/mo

MRR gained from existing customers upgrading or adding seats.

$/mo

MRR lost from cancellations this month.

$/mo

MRR lost from downgrades (fewer seats or lower plan tiers).

Scenarios
Preset SaaS stages to explore how ARR scales.
Pre‑PMF (~$0.5M ARR)PMF (~$1.8M ARR)Scaling (~$7.2M ARR)Growth (~$24M ARR)Enterprise (~$84M ARR)

Results

  • Annual Recurring Revenue (ARR)$
  • Monthly Recurring Revenue (MRR)— $/mo
  • Net New ARR (annualized)$
  • Ending ARR (with net new)$
  • ARR Growth vs Base— %
  • Stage—
  • Method Used—

Enter your inputs above to calculate the results.

Use this ARR calculator to convert recurring revenue into annual recurring revenue for SaaS reporting. Enter MRR, customer count and average monthly revenue, or annual contract values depending on the mode. The result gives ARR for board reporting, forecasts, growth rate analysis, retention metrics, and valuation conversations.

What is Annual Recurring Revenue (ARR)?

Annual Recurring Revenue (ARR) is the annualized value of your predictable subscription revenue, excluding one-off setup, implementation, or service fees.

It converts recurring cash flows into a clean annual number that finance teams use for budgeting, SaaS valuation multiples, and tracking revenue retention.

ARR also connects directly to metrics like MRR, ACV, ARPU, LTV, and net dollar retention, making it a core input for growth planning and investor reporting.

Formula

For subscription businesses, the most common ARR formulations are:

    • From Monthly Recurring Revenue (MRR):
ARR = MRR × 12
    • From customers and monthly ARPU:
ARR = Customers × Monthly ARPU × 12
    • From customers and Annual Contract Value (ACV):
ARR = Customers × ACV

When you track changes over time, net new ARR is often decomposed as:

Net New ARR = New ARR + Expansion ARR − Contraction ARR − Churned ARR

Example

Imagine a B2B SaaS company with 1,000 active customers and a monthly ARPU of $120.

MRR is 1,000 × 120 = $120,000, so

ARR = 120,000 × 12 = 1,440,000

for the current subscription base.

If the same 1,000 customers move to annual contracts with an ACV of $2,400 each, ARR becomes

ARR = 1,000 × 2,400 = 2,400,000

, reflecting how pricing and packaging lift recurring revenue, CLTV, and ultimately enterprise value.

Related calculators and references

How to Use the ARR Calculator (Annual Recurring Revenue)

This calculator lets you convert core SaaS revenue inputs (MRR, customers × ARPU, or customers × ACV) into clear ARR and MRR outputs, plus a short summary of your current revenue band.

Choose the input mode

  • At the top, select From MRR, Customers × ARPU (monthly), or Customers × ACV (annual) depending on which data you actually track.

Enter your primary inputs

    • For From MRR, type your current Monthly Recurring Revenue in the MRR field.

- For Customers × ARPU (monthly), enter total paying customers and their average monthly ARPU. - For Customers × ACV (annual), enter total paying customers and their average annual contract value.

(Optional) Include net new components

    • If you toggle “Include net new components” on, fill in any extra fields that appear (new ARR, expansion, downgrades, churn) so the tool can estimate Net New ARR and Ending ARR using variants of:
Ending ARR = Starting ARR + New & Expansion ARR − Churned ARR

Review the Results table

  • Check Annual Recurring Revenue (ARR), Monthly Recurring Revenue (MRR), Net New ARR (annualized), Ending ARR (with net new), and ARR Growth vs Base to understand your current run rate and growth in one place.

Interpret the summary band and iterate

  • Use the bottom summary line (e.g., “ARR: $1,800,000 — MRR: $150,000/mo ( $1–3M PMF )”) to see which ARR band you’re in, then tweak inputs (customers, ARPU, ACV) to model paths to the next ARR stage.

Frequently Asked Questions

These FAQs explain ARR, MRR conversion, annual contracts, exclusions, and how ARR connects to SaaS growth metrics.

How do I calculate ARR if I already know my current MRR?

Use the basic SaaS formula: take your latest stable Monthly Recurring Revenue and multiply by 12, so the calculator applies

ARR = MRR × 12

to annualize your current run rate.

How should I use the “Customers × ARPU (monthly)” and “Customers × ACV (annual)” modes?

In “Customers × ARPU (monthly)”, ARR is estimated as

ARR = Customers × Monthly ARPU × 12

. In “Customers × ACV (annual)”, ARR is

ARR = Customers × ACV

, which the tool then converts to MRR for you.

Does ARR in this calculator include one-time setup fees or services?

No—ARR should capture only predictable subscription revenue. One-off onboarding, consulting, or implementation fees are normally excluded so your ARR reflects true recurring revenue quality.

How can I use the ARR and MRR outputs for investor or valuation discussions?

Investors look at both the absolute ARR and its growth rate; higher, consistent ARR growth usually commands better valuation multiples (e.g., 5–8× ARR for healthy SaaS, depending on growth and efficiency). Use the calculator to sanity-check your current ARR band and track how improving MRR or ACV moves you into a stronger valuation range.

Sources & Methodology