SaaS Metrics

ADVANCED MRR CALCULATOR

Full SaaS revenue analysis: calculate MRR, ARR, churn impact, expansion revenue, quick ratio, and see a 12-month MRR growth projection chart.

Revenue Inputs

Currency

Current Business

Paying Customers

Avg Revenue Per User (ARPU)

Monthly Churn Rate

Growth Drivers

New Customers (per month)

Expansion Revenue

Upsells and upgrades as percentage of current MRR.

Contraction Rate

Downgrades as percentage of current MRR.

Costs & Margin

Gross Margin (COGS)

Revenue retained after cost of goods sold.

Projection

Projection Duration

Quick Scenario Picks

Revenue Snapshot

Gross MRR

$25,000

ARR

$300,000

Net New MRR

New + Expansion − Churned − Contraction

Net MRR (after COGS)

MRR Components

New MRR

$1,500

Expansion MRR

$500

Churned MRR

−$1,250

Contraction MRR

−$250

Health Metrics

Quick Ratio

1.14

(New + Expansion) / (Churned + Contraction)

ARPU

$50.00

Avg LTV

$1,000

MRR Growth Projection

Monthly Projection

Month	Starting MRR	New	Expansion	Churned	Contraction	Net New	Ending MRR

Frequently Asked Questions

What is MRR and why does it matter?

MRR stands for Monthly Recurring Revenue. It is the predictable revenue your business earns each month from subscriptions. SaaS founders and investors use MRR to measure growth, forecast cash flow, and evaluate business health. Gross MRR is total revenue, while net new MRR shows growth after accounting for churn.

What is the difference between gross MRR and net new MRR?

Gross MRR is the total monthly revenue from all paying customers. Net new MRR is the change in MRR after adding new and expansion revenue and subtracting churned and contraction revenue. Net new MRR shows whether your business is truly growing month over month.

What is SaaS quick ratio?

Quick ratio measures revenue efficiency. It is calculated as (New MRR + Expansion MRR) / (Churned MRR + Contraction MRR). A ratio above 4 is excellent, above 2 is good, and below 1 means your business is shrinking.

What is expansion MRR?

Expansion MRR is additional revenue from existing customers through upsells, cross-sells, or plan upgrades. It is a key growth lever for SaaS businesses because it increases revenue without requiring new customer acquisition.

What is a healthy churn rate for SaaS?

A monthly churn rate below 5% is average, below 3% is good, and below 1% is world-class. High churn means you need a constant stream of new customers just to stay flat. Improving retention is usually more cost-effective than acquiring new customers.

How to Use

Enter Customer Data

Type your current customer count, ARPU, and monthly churn rate.

Add Growth Drivers

Enter new customers per month, expansion rate (upsells), contraction rate (downgrades), and gross margin.

Compare Scenarios

Try Steady, Growth, or Hypergrowth presets. Export the monthly projection table as CSV.

How to Calculate

The calculator computes: Gross MRR = Customers x ARPU, Net New MRR = New MRR + Expansion MRR − Churned MRR − Contraction MRR, Net MRR = Gross MRR x Gross Margin, and Quick Ratio = (New + Expansion) / (Churned + Contraction). The projection applies these rates iteratively each month, compounding growth and churn over time.

All calculations run in your browser — no data is sent to any server.

About the MRR Calculator

This advanced free MRR Calculator helps SaaS founders and subscription businesses analyze their full revenue picture: gross and net MRR, expansion and churn components, quick ratio, customer LTV, and net MRR after COGS. The 12-month projection chart gives a visual forecast of where your MRR is heading, with scenario presets and CSV export.

All calculations happen locally in your browser. No login, no data upload, no server processing.

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