Liquidity$2 500
Free Strategy Tool

SaaS NDR/NRR (Net Dollar Retention) Calculator

Diagnostic Analysis Engine

Net Dollar Retention0.0%

Output Benchmarks

Leaky Bucket< 100%
Base is ship-wrecked
Healthy SaaS105% - 115%
Standard growth momentum
World-Class> 120%
VC-ready hyper-scale

How to use this SaaS NDR/NRR (Net Dollar Retention) Calculator

01

Input Data

Enter your current SaaS metrics into the labeled fields above.

02

Analyze Ratios

Instantly view efficiency ratios calculated against elite standards.

03

Optimize

Compare your results with the Benchmarks on the right to find leverage points.

The Core Equation

(Start + Exp - Churn - Down) / Start

Strategic Context

THE STRATEGIC VIEW

Net Dollar Retention (NDR) is the "Proof of Scale" metric for SaaS. While CAC measures acquisition, NDR measures value. An NDR above 120% is the hallmark of world-class companies like Snowflake and Datadog, signifying that growth is compounding organically within the existing base.

Operational Reality

THE POWER OF NET NEGATIVE CHURN

Net Dollar Retention is the only metric that accounts for "Net Negative Churn." When your Expansion Revenue (upsells, seat expansion) exceeds your Gross Churn, your NDR crosses 100%. This is the "Holy Grail" of SaaS, where the business grows even if you never hire another salesperson.

SEGMENTATION IS SOURCE

A single NDR number often hides the truth. Enterprise customers might have a 125% NDR, while SMB customers might have 85% due to higher mortality rates. Segment your NDR calculation by Customer Tier to identify which part of your product has true "Scalability DNA."

THE EXPANSION ARBITRAGE

High NDR companies build "Usage-Based" or "Seat-Based" triggers into their pricing. If a customer gets more value, you get more revenue automatically. If your pricing is "Flat Rate," you are capping your NDR and forcing yourself to rely entirely on new customer acquisition for growth.

Tactical FAQ

TACTICAL Q&A

Q: What is the difference between NRR and NDR?
A: They are functionally the same (Net Revenue Retention vs Net Dollar Retention). Both measure the same thing: (Ending Revenue from Starting Cohort) / (Starting Revenue).
Q: How can I fix an NDR below 100%?
A: Two ways: 1) Reduce Gross Churn (Product/Customer Success fix) or 2) Increase Expansion (Pricing/Upsell fix). Usually, it's easier to increase expansion from happy customers than it is to stop unhappy ones from leaving.
Q: Does NDR include new customers acquired this month?
A: Absolutely not. That is the most common mistake. NDR only looks at the revenue from customers who were *already with you* at the beginning of the period. New customers are measured by "New Bookings" or "ARR Growth," not NDR.
Recommended Course

Master The System

This calculator is just one tactical step. The full strategy is documented in the core protocol.

Source Lesson

Finance & Capital: SaaS Protocol

Start Lesson →

Related concepts

#Strategic Math#Capital Allocation#Unit Economics