ARR Calculator 2026 Annual Recurring Revenue for SaaS
Calculate your annual recurring revenue with the four-component ARR waterfall (new + expansion - churn - contraction), growth rate analysis, and milestone projections.
ARR Waterfall
Time to Milestones (at current growth rate)
ARR Waterfall: Why Components Matter More Than the Headline
A company growing ARR by 100% sounds impressive. But the source of that growth tells a completely different story depending on composition. A company adding $5M in new ARR while losing $2M to churn is in a fundamentally different position than one adding $3M with zero churn. The waterfall breakdown reveals the health of your growth engine.
New ARR from new logos shows your acquisition engine is working. Expansion ARR from existing customers proves your product delivers increasing value. Churned ARR signals where the product or experience fails. Contraction ARR from downgrades often indicates pricing or packaging problems. Track all four components independently.
What to Include and Exclude from ARR
Include
- Monthly subscription revenue (x12)
- Annual subscription contracts
- Committed minimum usage fees
- Platform fees and seat-based pricing
- Multi-year deals (at annual value only)
Exclude
- One-time implementation or setup fees
- Professional services revenue
- Non-committed usage overages
- Hardware or equipment sales
- Training or certification fees
Common mistake: counting multi-year deals at full value upfront. A 3-year, $300K deal should be counted as $100K ARR, not $300K.
ARR Growth Rate Benchmarks by Stage
| Stage | ARR Range | Expected YoY Growth | T2D3 Equivalent |
|---|---|---|---|
| Pre-Seed / Seed | < $1M | 200-300%+ | Tripling (3x) |
| Series A | $1-5M | 150-250% | Tripling (3x) |
| Series B | $5-15M | 100-180% | Doubling (2x) |
| Series C | $15-50M | 70-120% | Doubling (2x) |
| Growth / Pre-IPO | $50M+ | 30-70% | Doubling (2x) |