Net Dollar Retention Calculator

Currency € EUR – Euro $ USD – US Dollar £ GBP – British Pound ¥ JPY – Japanese Yen C$ CAD – Canadian Dollar A$ AUD – Australian Dollar CHF – Swiss Franc ¥ CNY – Chinese Yuan ₹ INR – Indian Rupee R$ BRL – Brazilian Real R ZAR – South African Rand

Starting MRR * Monthly recurring revenue at the start of the period

Expansion Revenue * Additional revenue from existing customers (upgrades, upsells)

Contraction Revenue * Revenue lost from existing customers (downgrades)

Churn Revenue * Revenue lost from customers who cancelled

Enter your data above to calculate NDR

How to Interpret Your Net Dollar Retention Results

• ≥ 120% – Excellent (Hypergrowth)
• 100-119% – Good (Growth despite churn)
• 80-99% – Warning (Declining revenue)
• < 80% – Critical (Significant revenue loss)

Most B2B SaaS companies think they’re growing when their ARR goes up. But here’s the brutal truth: if your Net Dollar Retention is below 100%, your existing customers are actually shrinking your business. Our NDR calculator shows you exactly where you stand—and whether your client base is a revenue engine or a leaky bucket.

Acquiring a new B2B client costs 5-25x more than keeping an existing one. Yet most SaaS companies obsess over new logos while their current customers quietly slip away That is why tracking retention is non-negotiable. While metrics like Annual Recurring Revenue (ARR) tell you how big you are, Net Dollar Retention (NDR) tells you how sustainable you are. Use the calculator above to see if your client base is a leaky bucket or a growth engine.”

What is Net Dollar Retention? (Complete Definition)

Net Dollar Retention (NDR) measures how much revenue you keep and grow from existing customers over a specific period, usually 12 months. Unlike gross retention, NDR includes expansion revenue from upsells and cross-sells.

The metric answers one critical question: Are your existing customers becoming more valuable over time?

Here’s what NDR tells you at different levels:

• Below 90%: Your customers are leaving faster than you can grow them
• 90-100%: You’re retaining most revenue but not expanding
• 100-110%: Solid growth from existing accounts
• 110%+: Exceptional expansion that can fuel hypergrowth

So, what is NDR revenue in a B2B context? It represents the total value of a cohort of clients after accounting for three factors:

1. Churn (Clients who cancelled).
2. Contraction (Clients who downgraded).
3. Expansion (Clients who increased spend via upsells or cross-sells).

For B2B SaaS companies, NDR above 120% often signals product-market fit so strong that customers naturally expand their usage. Companies like Snowflake and Datadog have reported NDRs above 150%, meaning their existing customer base alone drives massive growth.

Use our calculator above to see where your business stands and whether you’re building a growth engine or fighting a retention problem.

Net Dollar Retention Benchmarks by Industry

Your NDR doesn’t exist in a vacuum. Here’s how different B2B SaaS segments typically perform:

Enterprise SaaS (>$100K ACV):	Excellent: 130%+ Good: 115-130% Average: 100-115%
Mid-Market SaaS ($10K-$100K ACV):	Excellent: 120%+ Good: 105-120% Average: 95-105%
SMB SaaS (<$10K ACV):	Excellent: 110%+ Good: 100-110% Average: 85-100%

Why the difference? Enterprise customers have higher switching costs and more complex integrations, making them stickier. SMB customers churn faster but cost less to replace.

If your NDR is below these benchmarks, focus on reducing churn first. Once you hit 100%, then optimize for expansion. Companies that try to upsell leaky buckets usually waste money on both fronts.

Why NDR is the Holy Grail of B2B SaaS Metrics

If your NDR calculation is above 100%, it means your business is growing revenue from existing accounts alone—offsetting any lost clients with expansion from happy ones. This st

The Net Dollar Retention Formula

Whether you run a marketing agency or a SaaS platform, the math remains the same. Here is how to calculate net dollar retention:

NDR=Starting Revenue(Starting Revenue+Expansion−Contraction−Churn)​×100

To get an accurate figure, you first need a solid handle on your baseline numbers.

• Starting Revenue: If you track annually, use our Annual Recurring Revenue (ARR) Calculator to standardize your starting figures.
• Expansion Revenue: This happens when you increase the Annual Contract Value (ACV) of existing clients through upsells.
• Churn Revenue: You cannot fix NDR without measuring loss. Use our Churn Rate Calculator to pinpoint exactly how much revenue is leaving the bucket.

NDR vs. Gross Dollar Retention (GDR)

B2B leaders often confuse these two, but the distinction is critical.

• Net Dollar Retention includes upsells. It tells you if your revenue is growing.
• Gross Dollar Retention excludes upsells. It tells you if your clients are staying.

If your NDR is high but your profit is low, check your efficiency. Investors often look at NDR alongside the Quick Ratio to ensure you aren’t burning cash just to keep customers.

How to Improve Your NDR Score

Moving your NDR from “Good” (100%) to “Excellent” (120%+) requires a mix of strategy and data.

1. Acquire the Right Customers: Low retention often stems from poor targeting. Shifting to a SaaS ABM (Account-Based Marketing) approach helps you target high-fit enterprise accounts that stick around longer.
2. Educate for Expansion: Upsells rarely happen by accident. A solid B2B content strategy keeps your product top-of-mind and educates existing users on premium features.
3. Trust Your Data: You can’t improve what you can’t measure. This is why first-party data reigns supreme—it ensures you are tracking actual usage behaviors that predict churn, rather than relying on guesswork.
4. Re-invest in Growth: If your NDR is healthy, you can afford to bid more aggressively on channels like LinkedIn Ads to acquire more of your best customers.

Frequently Asked Questions

Ready to turn retention data into growth strategy? Our team has helped 50+ B2B SaaS companies improve their NDR by an average of 23 percentage points. We’ll audit your current retention metrics and show you exactly where revenue is leaking—plus the three highest-impact fixes to plug those holes.