Revenue Analytics tool
NRR Calculator
See how much your existing customers grow or shrink in value over a year, so you can tell whether your revenue is expanding even without adding anyone new.
NRR Calculator
Formula
((Starting revenue + Expansion − Contraction − Churn) ÷ Starting revenue) × 100
Take the revenue from your existing customers at the start, add my growth from upgrades, subtract downgrades and cancellations, then divide by where you started. Multiply by 100 to get your Net Revenue Retention as a percentage.
What is an NRR Calculator?
An NRR calculator shows how much recurring revenue you keep and grow from your existing customers over time, without counting new sales.
Starting revenue
Where did you begin?
This is the recurring revenue from your existing customers at the start of the period, usually a year. It’s the baseline you measure everything against. Only existing customers count here, since NRR is about how well you grow the revenue you already have.
Expansion
How much did customers grow?
This is the extra revenue from existing customers upgrading, buying add-ons, or expanding their plan. It’s the engine of a strong NRR because it can push your rate above 100%. Growing this is how you increase revenue without winning a single new customer.
Net revenue retention
What does it tell you?
NRR tells you whether your existing customers are growing or shrinking in value. Above 100% means expansion beats losses, and your revenue grows on its own, a sign of a healthy business. Below 100% means you’re losing more than you gain and must win new customers just to stay level.
Contraction & churn
How much did you lose?
Contraction is revenue lost when customers downgrade, while churn is revenue lost when they cancel completely. Together, pull your NRR down. Keeping both low is just as important as expansion.
From churn to expanding revenue
Grow revenue by keeping customers and helping them get more value.
ProductBridge helps you collect feedback from across your channels, turn it into a clear roadmap, and share every improvement through a built-in changelog. When customers see their needs met and their ideas shipped, they stay longer and expand, which is exactly what lifts your NRR.
How to Use NRR to Grow Your Business?
NRR is most useful when you treat it as a health check you run regularly. Tracking it month over month shows whether your customer base is quietly growing or slowly leaking, long before it shows up in your total revenue.
Where NRR really earns its place is in showing you where to act. If your rate sits below 100%, losses are reducing growth, so the fix is usually better retention, onboarding, or support. If you’re already above 100%, the bigger opportunity is expansion, helping existing customers upgrade and get more value. Because growing current customers is far cheaper than winning new ones, even a small lift in NRR is a big difference over time.
NRR calculator FAQ
Answers to common questions about calculating net retention revenue and using it for subscription growth planning.
How do you calculate net revenue retention?
NRR is calculated with this formula: NRR = ((Starting revenue + Expansion − Contraction − Churn) ÷ Starting revenue) × 100 For example, starting at $100,00 with $20,000 in expansion, $5,000 in downgrades, and $5,000 in cancellations, gives ((100,000 + 20,000 − 5,000 − 5,000) ÷ 100,000) × 100 = 110%. New customers are never included, since NRR measures only the revenue you keep and grow from existing ones.
What is a good NRR?
For most subscription businesses, 100% NRR is the baseline, meaning you’re keeping all your revenue despite some losses. Anything above 100% is strong, because it shows your existing customers are growing in value on their own. SaaS companies often reach 120% or higher. Below 100% means you’re losing revenue from your current base and relying on new sales to make up the gap.
Why is NRR important for SaaS businesses?
NRR matters because it shows whether a business can grow from its existing customers alone. A high NRR means revenue compounds over time, since customers expand faster than they leave, making growth cheaper and predictable. Investors pay close attention to it. In short, strong NRR means you’re not just filling a leaky bucket with new customers; you’re growing the water already in it.
How can you improve your NRR?
You improve NRR by expanding while reducing losses. To grow expansion, make it easy for customers to upgrade, add value through new features, and use tiered pricing that rewards growth. To cut losses, strengthen onboarding, support, and retention so fewer customers downgrade or leave.
What is the difference between NRR and GRR?
NRR and GRR both measure revenue retention, but NRR includes expansion while GRR does not. Gross Revenue Retention (GRR) only counts what you lose to downgrades and cancellations, so it can never go above 100%. Net Revenue Retention(NRR) adds expansion revenue, so it can exceed 100%. Both combined tell you whether expansion is hiding a churn problem or not.
What are the limitations of NRR?
NRR has a few blind spots. As a single percentage, it blends expansion and losses, so a number can hide serious churn by a few big upgrades. It also focuses only on existing customers, so it says nothing about how well you attract new ones. NRR works best only when combined with GRR and churn data, which reveal what’s really happening beneath the number.