SaaS Pricing & MRR Calculator
Model your growth before it costs you
SaaS growth looks simple on a spreadsheet — until churn kicks in. This calculator projects your MRR 12 months forward, factoring in your acquisition rate, monthly churn, and current customer base to give you a realistic revenue forecast and customer lifetime value estimate.
How churn rate affects customer lifespan
3% churn
Healthy
21 months avg lifespan
5% churn
Concerning
Most customers gone in 14 months
8% churn
Critical
Losing 60%+ of base annually
The four numbers that define SaaS health
Investors ask about these. Board decks track these. Your calculator outputs all four.
MRR
Monthly Recurring Revenue
The heartbeat of any SaaS business. MRR = customers × price. This number either trends up and to the right, or your business is in trouble.
Churn rate
Customer attrition
The percentage of customers who cancel each month. 3-5% is normal for SMB SaaS; above 5% means your product isn't sticky enough for the price.
Net growth
New minus churned
New customers acquired minus those who churned. If this number is negative, your customer base is shrinking — even if MRR looks fine right now.
LTV
Customer Lifetime Value
How much revenue a customer generates before cancelling. Price ÷ monthly churn rate. If LTV isn't 3x+ your CAC, growth will never be profitable.
Growth is not enough
If your churn outpaces your new customer acquisition, you're shrinking — even if your MRR is rising. Here's why.
Acquisition masks churn in the early months. You add 15 customers, lose 8 — net looks fine. But those 8 didn't just leave; they left because your product isn't delivering enough value for the price.
Every churned customer represents a broken value proposition for someone. Track churn by cohort — if month-3 churn is high, your onboarding isn't working. If month-9 churn spikes, your product lacks stickiness.
Revenue Model
MRR
12-Month MRR
Churn
LTV
Benchmark Health
vs Growth (50-500)
Growth Insights
223 customers in 12 months.
MRR
12m MRR
Churn
LTV
Benchmark
Insights
Strong trajectory.
223 customers in 12 mo.
Best-in-class SaaS churn is 1-2% monthly (for enterprise) and 3-5% for SMB. If your model shows negative net growth, reduce churn before scaling acquisition. Spending to acquire customers who cancel in 3 months is the fastest path to burning cash.
Know your MRR 12 months from now
Enter your customers, price, churn, and monthly adds. See the projection and LTV instantly.