Free MRR Calculator

MRR became the defining SaaS metric through the work of David Skok, a serial entrepreneur and venture capitalist at Matrix Partners, who published influential blog posts on SaaS metrics starting in 2008. His framework for breaking MRR into new, expansion, contraction, and churned components became the standard adopted by virtually every SaaS company and investor. Bessemer Venture Partners further codified MRR in their Cloud Index and 'Laws of Cloud' publications. By the early 2010s, MRR and its annualized counterpart ARR had become the primary metrics investors use to evaluate and value subscription businesses.

Total revenue can be misleading because it includes one-time payments, professional services, and variable usage fees that don't recur. MRR isolates the predictable, recurring portion of revenue — the foundation that subscription businesses build on. A company with $100K in total revenue but only $50K MRR has a very different business from one with $100K in total revenue and $90K MRR. Investors typically value MRR at 5–15x for high-growth SaaS companies because recurring revenue is more predictable, has higher gross margins, and compounds. The predictability of MRR is what makes SaaS business models fundamentally more valuable than one-time transaction businesses.

MRR breaks down into four movements that tell a complete growth story: New MRR (revenue from newly acquired customers), Expansion MRR (revenue increases from existing customers — upgrades, add-ons, seat additions), Contraction MRR (revenue decreases from existing customers — downgrades), and Churned MRR (revenue lost from cancellations). Net New MRR = New + Expansion - Contraction - Churned. The healthiest SaaS businesses achieve 'net negative churn' — where expansion revenue from existing customers exceeds all contraction and churn, meaning the business would grow even without acquiring a single new customer.

The benchmark depends on your stage. Pre-product-market-fit startups should target 15–20% month-over-month MRR growth. Post-PMF companies typically grow 10–15% monthly in the early scaling phase. Mature SaaS businesses ($10M+ ARR) usually see 5–8% monthly growth. The 'T2D3' framework (triple, triple, double, double, double annually) popularized by Neeraj Agrawal at Battery Ventures suggests that elite SaaS companies triple revenue in years 1 and 2, then double in years 3, 4, and 5. If your MRR growth rate is declining month over month, investigate whether the issue is acquisition (not enough new MRR), retention (too much churn), or expansion (not enough upsell).

Divide the annual contract value by 12 to get the monthly MRR equivalent. A customer paying $1,200/year contributes $100/month to MRR. This normalization is important because it prevents annual payment spikes from distorting your monthly growth picture. Some companies also track 'committed MRR' (including the full remaining value of annual contracts) separately from 'recognized MRR' (the monthly portion). For investor reporting, the standard practice is to spread annual contracts evenly across 12 months.

MRR is better for operational decision-making, month-to-month tracking, and early-stage companies where monthly changes are significant. ARR (Annual Recurring Revenue, simply MRR x 12) is better for board reporting, investor communications, valuation discussions, and comparing against annual benchmarks. Most SaaS companies track both: MRR for the operating dashboard and ARR for strategic conversations. The choice often depends on audience — your engineering team cares about this month's MRR movement; your board cares about the ARR trajectory.