SaaS MRR Calculator

MRR is the heartbeat metric of subscription businesses: normalized monthly recurring revenue. From customer count and average revenue per user, this calculator derives MRR, ARR, and annual revenue.

Inputs

Paying customers

Average revenue per customer / month

Results

MRR

$10,620

ARR: $127,440
Annual revenue run-rate: $127,440

MRR normalizes everything to a month: divide annual plans by 12 and exclude one-time fees (setup, services) to keep it honest.

Formula

MRR = Customers × ARPU · ARR = MRR × 12

FAQ

Do discounts and trials count?

MRR should reflect actual committed recurring revenue: paying customers at their effective paid price. Free trials add nothing until they convert.

MRR or ARR — which should I report?

Early-stage SaaS usually reports MRR for granularity; later-stage companies report ARR. Both are just the same number ×12.