MRR & ARR Calculator
Real-time SaaS revenue projections — model growth, churn, and where you'll be in 12 months.
MRR
Monthly recurring
ARR
Annual recurring
LTV
Per customer
12-mo MRR
0%Avg 3–8%20%
12-Month Revenue Projection
MRR — area line (left) · Customers — columns (right)
Revenue Milestones
Month-by-Month Breakdown
Churn applied before growth each month| Month | Customers | MRR | ARR | vs Today |
|---|---|---|---|---|
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Final
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How is churn modeled?
Each month: customers = prev × (1 − churn%) + new signups. Float arithmetic — no rounding-to-zero bug at small customer counts.
What is LTV?
Lifetime Value = price ÷ monthly churn. $49 at 3% churn → $1,633 LTV. Zero churn = infinite LTV (shown as ∞). Target LTV:CAC above 3:1.
ARR vs MRR?
ARR = MRR × 12. Used for investor conversations and valuations. SaaS companies typically trade at 3–10× ARR depending on growth rate.
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