SaaS Metrics

SaaS MRR Calculator

Calculate monthly recurring revenue from active customers and average revenue per account.

MRR = Customers × ARPU

What this calculator does

Estimate monthly recurring revenue and annualized run rate from active paying customers and normalized monthly recurring revenue per customer.

Scope, period, and currency

This page runs a local formula from user-entered values. The country/currency selector changes money symbols and formatting only: it does not perform live or historical FX conversion or automatically change contract, tax, accounting, or regulatory rules. Convert all amounts into one currency first and keep periods and metric definitions consistent.

Formula variables

N: Active paying customers included in the snapshot.
A: Normalized monthly recurring revenue per customer.

Formula and worked example

Formula: MRR = N × A; annualized run rate = MRR × 12.

Recalculation: 420 active customers × $39 normalized monthly ARPU = $16,380 MRR and $196,560 annualized run rate.

Model assumptions

ARPU contains recurring subscription revenue only.
Annual, quarterly, discounts, and multiple currencies are normalized before entry.
One-time fees, taxes, refunds, and accounting revenue recognition are excluded.

Reading the result and model boundary

MRR is a point-in-time operating metric.
MRR × 12 is an annualized run rate, not guaranteed future or recognized revenue.

This is a simple recurring-revenue snapshot, not a revenue-recognition or forecast model.

How to use it

Define which active paying subscriptions are included.
Normalize recurring revenue to a monthly amount in one currency.
Exclude one-time charges and reconcile the snapshot with billing data.

Common incorrect uses

Multiplying annual invoice value as if it were monthly ARPU.
Including setup fees or one-time services.
Calling MRR × 12 accounting revenue.

Suggested verification workflow

Normalize subscriptions.
Calculate MRR and run rate.
Reconcile with billing movements and accounting reports.

FAQ

Should annual plans be included?

Yes, but first normalize their recurring amount to a monthly basis.

Is MRR × 12 the next year's revenue?

No. It is an annualized run rate that assumes the current snapshot continues.

Does currency selection convert subscriptions?

No. It changes display formatting only; normalize all subscriptions into one currency first.

Method and review boundary

Results are calculated locally in the browser from the formula shown on this page. The tool does not retrieve live rates, quotes, approvals, or billing data. Last reviewed: July 24, 2026.

Use the result for first-pass estimates, scenario comparison, and question preparation; it is not financial, investment, tax, accounting, or legal advice.

Authoritative sources and notes

Monthly recurring revenue methodology - ChartMogul
MRR and accounting revenue - ChartMogul

Sources checked July 24, 2026. Rates, product rules, and official guidance can change; verify them again before a formal decision.