SaaS MRR Calculator

Calculate your SaaS Monthly Recurring Revenue (MRR), Annual Recurring Revenue (ARR), churn impact, and growth projections from your subscription data.

SaaS Metrics

$24,500
Current MRR
$294,000
ARR
New MRR+$1,470
Expansion MRR+$1,000
Churned MRR-$735

Net New MRR+$1,735
MRR Growth Rate7.1%/month
Customer LTV$1,633
Avg. Customer Lifetime33 months

12-Month Projection

Month 1$26,235 · 515 customers
Month 3$28,970 · 530 customers
Month 5$31,656 · 544 customers
Month 7$34,342 · 558 customers
Month 9$36,979 · 571 customers
Month 11$39,616 · 584 customers

Understanding SaaS MRR Metrics

MRR (Monthly Recurring Revenue) = Customers × ARPU. It's the predictable revenue a SaaS business earns each month from subscriptions.

Net New MRR = New MRR + Expansion MRR − Churned MRR. Positive net new MRR means the business is growing.

LTV (Lifetime Value) = ARPU ÷ Monthly Churn Rate. It estimates how much revenue an average customer generates before they cancel.

Healthy SaaS benchmarks: monthly churn under 5% (ideally 2-3%), LTV/CAC ratio above 3:1, and positive net new MRR.

Frequently Asked Questions

MRR (Monthly Recurring Revenue) is the predictable revenue a subscription business earns each month. It equals the number of paying customers multiplied by the average revenue per user (ARPU).

For B2B SaaS, 2-5% monthly churn is typical. Under 2% is excellent. B2C SaaS often sees higher churn (5-10%). Enterprise SaaS with annual contracts may have less than 1% monthly churn.

NRR measures revenue from existing customers over time, including expansions and contractions. NRR above 100% means expansion revenue exceeds churn — a sign of a very healthy SaaS business.

LTV = ARPU / Monthly Churn Rate. For example, $49 ARPU with 3% churn = $1,633 LTV. A common target is LTV/CAC ratio of 3:1 or higher.

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