SaaS ARR, MRR & Growth Velocity Calculator

Monthly Recurring Revenue to Annual Recurring Revenue with net new ARR breakdown.

Reviewed by Certified Financial Planner (CFP) Updated for Fiscal Year 2026 100% Private Client-Side Sandbox

Adjust Parameters

Current Monthly Recurring Revenue (MRR)

New MRR Added this Month

Expansion MRR (Upgrades)

Lost Churned MRR

Annual Recurring Revenue (ARR) Tap for Confetti

$600,000

Current MRR of $50,000 translates to $600,000 ARR, expanding by $6,500 net new MRR/month.

Net New Monthly MRR

+$6,500/mo

Projected 12-Month ARR

$678,000

Monthly Growth Velocity

+13.00%/mo

Gross Churned MRR

-$1,500/mo

How to Use the SaaS ARR, MRR & Growth Velocity Calculator (3-Step Guide)

Input MRR Metrics

Enter current base MRR and new additions.

Review ARR & Trajectory

Analyze annualized run rate and 12-month revenue expansion.

Mathematical Formula & Underlying Logic

ARR = MRR × 12. Net New MRR = New MRR + Expansion MRR - Churned MRR.

All algorithms are executed with 64-bit IEEE 754 floating-point mathematical precision directly in your browser. No financial data leaves your device.

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Frequently Asked Questions (FAQ)

Net New MRR is the true net monthly expansion of your SaaS: New Customer MRR + Expansion/Upsell MRR - Churned/Canceled MRR.

How to Use the SaaS ARR, MRR & Growth Velocity Calculator

Step-by-step instructions to calculate saas arr / mrr metrics accurately

Input MRR Metrics

Enter current base MRR and new additions.

Review ARR & Trajectory

Analyze annualized run rate and 12-month revenue expansion.

Mathematical Methodology & Formula

Verified financial principles powering our client-side calculations

The SaaS ARR, MRR & Growth Velocity Calculator implements financial computation models adhering to standard actuarial and algorithmic accounting principles. Every calculation is performed with 64-bit floating-point precision directly on your device, ensuring zero data leakage and instantaneous re-computation.

// Core Equation & Principle:

ARR = MRR × 12. Net New MRR = New MRR + Expansion MRR - Churned MRR.

Inputs: Current Monthly Recurring Revenue (MRR), New MRR Added this Month, Expansion MRR (Upgrades), Lost Churned MRR

All formulas verified against published financial regulations and standards.