ARR Calculator

What ARR Calculator measures

ARR Calculator focuses on annualized recurring subscription run rate. It uses monthly normalization and visible convention controls so the result does not silently mix cash, recognition and recurring run-rate values.

How to use the ARR Calculator

Enter plan, movement, cohort or value assumptions using the same measurement period. Choose the mode that matches your question, then calculate.

Use the convention toggles only when your internal reporting policy intentionally treats trials, paused subscriptions, discounts or usage differently.

Formula

ARR = MRR x 12. Plan ARR = active paid subscriptions x discounted cycle value x 12 / billing cycle months.

Included values

These values are included by default when they represent recurring paid subscription value.

• Recurring subscription charges.
• Recurring seats and quantity charges.
• Recurring add-ons.
• Committed recurring usage.
• Recurring discounts as reductions.

Excluded values

These values are excluded by default so recurring metrics remain distinct from one-time cash and accounting revenue.

• Booked annual contract value that is not recurring.
• Setup fees.
• Professional services.
• Taxes.
• Nonrecurring cash collections.
• Uncommitted usage by default.

Period assumptions

MRR normalizes every included recurring value to one month. ARR annualizes that normalized value. Churn and retention annualization use survival math rather than simple multiplication.

Calculation conventions

Active paid and scheduled-to-cancel subscriptions count by default. Trial, free, paused and cancelled subscriptions are excluded unless a visible convention toggle changes that treatment.

Step-by-step calculation

The engine validates nonnegative values, converts billing cycles to months, applies recurring discounts, excludes one-time revenue by default, reconciles movements and then rounds only for display or CSV export.

Result interpretation

The headline result answers the main SaaS metric question. Supporting cards show reconciliation, retention, ARPA, CAC or target context depending on the page.

Reverse calculations

Where useful, the calculator solves related planning questions from the same inputs.

• Required MRR from target ARR
• Required accounts from target ARR
• Net New ARR
• Ending ARR
• ARR growth

Worked example

Example: 12,500 MRR annualizes to 150,000 ARR. If target ARR is 240,000, required MRR is 20,000.

Common mistakes

SaaS metric mistakes usually come from mixing billing cash, recognized revenue, one-time revenue and recurring run-rate conventions.

• Calling ARR cash collected.
• Including services revenue.
• Failing to normalize quarterly or annual plans.
• Treating ARR as recognized revenue.

Limitations

This calculator does not connect to Stripe, Chargebee, Paddle, ChartMogul or accounting systems.

• Does not decide accounting treatment.
• Does not fetch subscription data.
• Does not model future churn or expansion.

Related metrics

ARR Calculator is part of the final Business SaaS cluster with MRR, ARR, SaaS Churn and SaaS LTV. Use the related calculators when the question changes from this page's metric.

Data hygiene checklist

Use one reporting cut-off, one currency display, one customer definition and one recurring revenue convention before comparing results across periods.

When to review the metric

Review this result after price changes, packaging changes, billing-cycle migrations, large churn events, major discount campaigns or changes in customer-status policy.

How teams can use the output

The result works best as a planning and reconciliation worksheet for operators, founders, finance teams and marketers who need a transparent SaaS metric estimate.

Frequently asked questions

References

• Stripe Docs, Billing analytics glossary and recurring revenue metric definitions. Source.
• Stripe Docs, Monthly Recurring Revenue and active subscriber analytics concepts. Source.
• Paddle Resources, SaaS metrics guide covering MRR, ARR, churn, ARPU, LTV, CAC and payback. Source.
• ChartMogul Help Center, MRR and MRR movements metric conventions. Source.
• ChartMogul Help Center, customer churn and recurring revenue churn conventions. Source.
• Chargebee Docs and resources, subscription analytics and SaaS metric conventions. Source.

Business Phase 4 SaaS references and formula conventions reviewed on June 29, 2026.