Tiny Toolkit

MRR / ARR Calculator

Calculate Monthly Recurring Revenue (MRR) and Annual Recurring Revenue (ARR) from your subscriber breakdown. Enter the number of customers on each plan at their monthly price, and the tool sums them into total MRR and annualizes to ARR. It also shows average revenue per account (ARPA) and the revenue contribution of each plan tier.

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Frequently Asked Questions

What is MRR and why does it matter?
Monthly Recurring Revenue (MRR) is the predictable, normalized monthly revenue from active subscriptions. It is the primary health metric for subscription businesses because it strips out one-time payments and shows the true underlying revenue trajectory.
How is ARR calculated from MRR?
ARR = MRR x 12. This assumes current MRR holds constant for the next 12 months, which is a snapshot metric. ARR is used for investor reporting, valuation (SaaS companies are often valued at a multiple of ARR), and internal goal-setting.
What is ARPU and how is it used?
Average Revenue Per User (ARPU) = MRR / total active customers. It benchmarks pricing efficiency and informs expansion revenue strategy. Rising ARPU over time typically signals successful upselling; declining ARPU may indicate a shift toward lower-tier plans.
Should I include one-time fees in MRR?
No. MRR should only include recurring subscription revenue. One-time setup fees, professional services, and usage overages are typically excluded or normalized separately. Including them inflates MRR and distorts month-over-month growth trends.

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