Subscription Revenue Calculator
Enter your subscribers, average revenue per user, and monthly churn to get MRR, ARR, and a 12-month revenue projection.
See your recurring revenue at a glance
Recurring revenue is the heartbeat of any subscription business. Enter your subscriber count, the average revenue each one pays per month, and your monthly churn, and this calculator returns your MRR, its annualized ARR, and a simple twelve-month projection that accounts for the customers you'll lose to churn along the way.
The projection is deliberately conservative — it applies churn without assuming new signups — so it shows the natural decay of your current base. That's a useful floor: it tells you how much new revenue you need to add each month just to stay flat, and how much churn is costing you over a year.
How it's calculated
MRR = subscribers × ARPU. ARR = MRR × 12. The 12-month projection compounds monthly churn: MRR × (1 − churn ÷ 100)¹². All computed live in your browser.
Frequently Asked Questions
What is MRR and ARR?
MRR is monthly recurring revenue — subscribers multiplied by average revenue per user. ARR is annual recurring revenue, which is simply MRR × 12.
How does churn affect projected revenue?
Churn reduces your subscriber base each month. This calculator applies your monthly churn to project MRR twelve months out, so you can see net growth after losses.
What is ARPU?
ARPU is average revenue per user — total recurring revenue divided by the number of subscribers. It is the per-customer price that drives MRR.
Is this calculator free and private?
Yes. It runs entirely in your browser with no sign-up, and none of your inputs are uploaded.
Retention, pricing, and growth strategy for service businesses and SaaS.