ARR Calculator

Calculate ARR by multiplying your current MRR by 12. For a SaaS at $15K MRR with 5% growth and 4% churn, projected ARR after 12 months is ~$195K. Reducing churn by 30% adds ~$12K in annual revenue through compounding alone. ARR above $1M is the benchmark most investors require for Series A consideration.

Annual Recurring Revenue (ARR) is the single most important number investors and acquirers look at when evaluating a SaaS business. This calculator shows your current ARR, projects where you will be in 12 months, and reveals how much extra revenue you'd keep by reducing churn by just 30%.

ARR vs MRR

MRR (Monthly Recurring Revenue) is the total predictable revenue your SaaS collects each month from active subscriptions. ARR is simply MRR multiplied by 12. While MRR is the more operational metric you check daily or weekly. use our MRR calculator to break it down. ARR is the number that matters for fundraising, valuations, and acquisition conversations.

The distinction matters because ARR smooths out monthly fluctuations and gives you a clearer view of your annual trajectory. A SaaS doing $15,000 MRR might not sound impressive, but $180,000 ARR tells a different story. For indie and bootstrapped founders, crossing key ARR milestones ($100K, $500K, $1M) is often what unlocks acquisition interest or debt financing options.

In 2026, typical SaaS multiples for SMB products range from 3-8x ARR depending on growth rate, net revenue retention, and market. Every dollar of ARR you add or protect directly impacts the value of your company at those multiples.

Compounding Effect of Churn

Churn is not linear. It compounds against you in the same way growth compounds in your favor. When you lose 4% of customers every month, you are not just losing 48% over a year. You are losing 4% of an already-shrinking base, which means the cumulative loss is closer to 39% of your starting base over 12 months. The math works like compound interest, but in reverse.

This exponential decay is why small reductions in churn rate produce outsized gains over time. Cutting your churn from 4% to 2.8% (a 30% improvement) does not save you 30% more revenue. Because of compounding, the savings accelerate each month. Over 12 months, you retain significantly more of your base, and each retained customer continues generating revenue for every subsequent month.

This is why investors obsess over net revenue retention. A company with 5% growth and 2% churn will dramatically outperform a company with 8% growth and 5% churn over a two-year horizon. The compounding math makes retention the single highest-leverage metric for long-term SaaS growth. See how your customer lifetime value responds to churn changes with the LTV calculator.

The calculator above shows exactly how this plays out for your numbers. Adjust the churn slider and watch how even a small reduction creates a widening gap in projected ARR. That gap is the compounding effect in action.

Next Step

The fastest way to reduce churn is to start with the involuntary churn slice. Failed payments, expired cards, and billing errors account for 20-40% of total churn in most SaaS companies, and they are almost entirely recoverable with automated dunning and smart retry logic. Learn how to reduce involuntary churn on Stripe.

SaveMRR connects to your Stripe account and automatically recovers failed payments, sends personalized retention offers, and intercepts cancellations before they finalize. Your first $200 in recovered MRR is free. See what your ARR could look like with 30% less churn.