Net Dollar Retention Calculator
Free net dollar retention calculator. Track revenue retained and expanded from existing customers.
How Net Dollar Retention Calculator Works
NDR = (Starting Revenue + Expansions − Contractions − Churn) ÷ Starting Revenue × 100. Same formula as NRR — the terms are often used interchangeably by different VCs and SaaS companies. Both metrics measure the same concept: revenue retained from existing customers after accounting for churn, downgrades, and expansion/upsells.
Net Dollar Retention Benchmarks
| Label | Meaning |
|---|---|
| Above 120% | Best-in-class dollar retention |
| 100–120% | Healthy growth from existing base |
| 90–100% | Slight revenue shrinkage from churn |
| Below 90% | Significant churn problem — investigate immediately |
Frequently Asked Questions
What is NDR?
Net Dollar Retention (NDR) and Net Revenue Retention (NRR) refer to the same metric — the percentage of revenue retained from existing customers after churn, contraction, and expansion. Some companies prefer 'dollar' to emphasise it's revenue-based, not headcount-based.
Is NDR the same as NRR?
Effectively yes — the formula is identical. The difference is terminology. Bessemer and most VCs use NRR; some SaaS companies prefer NDR. When comparing benchmarks, confirm which term a source uses to ensure you're comparing like-for-like.
What causes NDR below 100%?
Churn exceeding expansion revenue. Common causes: poor onboarding leading to early churn, pricing model that doesn't scale with customer success, weak expansion motion (no upsell or cross-sell), or product-market fit issues in a segment.
Is my data stored?
No.
Can I use this on mobile?
Yes.
About This Tool
Built by the Calcyo team and last updated June 2026. All calculations follow industry-standard methodology. No data leaves your browser — calculations run entirely client-side using JavaScript. If you spot an error in the formula or benchmark data, email us at support@calcyo.xyz.