MRR Calculator

What is MRR (Monthly Recurring Revenue)?

Monthly Recurring Revenue (MRR) is the predictable revenue a SaaS business earns every month from active subscriptions. It is the single most important metric for subscription businesses because it shows how much revenue you can reliably expect, making it easier to plan spending, forecast growth, and communicate health to investors.

Unlike one-time sales, MRR only counts revenue that repeats. If a customer pays $588 for an annual plan, you record $49/month in MRR, not $588 in the month they paid. This normalization gives you an apples-to-apples view of your business regardless of billing frequency.

How MRR is Calculated

The simplest way to calculate MRR is to multiply the number of paying customers by the average revenue each customer pays per month (known as ARPA, or Average Revenue Per Account).

For example, if you have 200 customers each paying an average of $49/month, your MRR is $9,800. The calculator above does this math for you and also converts MRR to ARR by multiplying by 12.

For businesses with multiple pricing tiers, calculate MRR by summing the monthly revenue from each tier. If you have 50 customers on a $29 plan, 100 on $49, and 50 on $99, your MRR is (50 x $29) + (100 x $49) + (50 x $99) = $11,300.

Types of MRR

Breaking MRR into components helps you understand where your revenue is coming from and where it is leaking. Most SaaS companies track five types:

• New MRR: Revenue from first-time customers acquired during the period. This is your top-of-funnel revenue engine.
• Expansion MRR: Additional revenue from existing customers who upgrade their plan, add seats, or purchase add-ons. Expansion is often the most efficient growth lever because you have already earned the customer's trust.
• Churned MRR: Revenue lost when customers cancel their subscriptions entirely. High churn signals product or market fit issues.
• Contraction MRR: Revenue lost when existing customers downgrade to a cheaper plan or remove seats. Contraction is softer than churn but still reduces revenue.
• Reactivation MRR: Revenue recovered from previously churned customers who return. Tracking reactivation separately helps you measure win-back campaign effectiveness.

MRR vs ARR

ARR (Annual Recurring Revenue) is simply MRR multiplied by 12. While MRR gives you a monthly snapshot, ARR projects that revenue over a full year. Early-stage startups and month-to-month SaaS businesses tend to focus on MRR because it reflects short-term changes more clearly. Enterprise SaaS companies with annual contracts typically report ARR because their revenue cycles are longer.

Both metrics measure the same underlying reality. The choice between them is mostly about communication. Investors evaluating growth-stage companies often prefer ARR because it makes revenue figures easier to compare against annual benchmarks. If your MRR is $9,800, your ARR is $117,600.

Net New MRR

Net New MRR tells you whether your business is actually growing or shrinking on a monthly basis. The formula combines the three main MRR movement types:

A positive Net New MRR means your business is growing. A negative number means you are losing more revenue than you are adding. If your New MRR is $2,000, Expansion MRR is $500, and Churned MRR is $800, your Net New MRR is $1,700.

Tracking Net New MRR alongside your churn rate gives you a complete picture. A high churn rate paired with strong new customer acquisition might still produce positive Net New MRR, but it means you are filling a leaky bucket.

How to Grow MRR

Growing MRR comes down to three levers: acquiring new customers, expanding revenue from existing customers, and reducing churn. Here are practical strategies for each:

• Optimize pricing tiers: Many SaaS companies underprice their product. Test higher price points or add a premium tier. Even a small ARPA increase across hundreds of customers has a large MRR impact.
• Reduce involuntary churn: Failed payments account for 20-40% of all churn in many SaaS businesses. Implement dunning emails, retry logic, and card update reminders to recover this lost revenue.
• Drive expansion revenue: Build features that naturally lead to upgrades, such as usage limits, team seats, or premium integrations. Expansion MRR often has the highest margins because the customer acquisition cost is near zero.
• Collect feedback systematically: Understanding why customers churn or what features they need helps you prioritize work that directly impacts retention and expansion. Track your growth rate to measure the effect of these changes over time.
• Shorten time to value: The faster new users reach their "aha moment," the higher your activation rate and the lower your early-stage churn. According to Lenny Rachitsky's retention benchmarks, best-in-class B2B SaaS products retain over 95% of revenue monthly.

Frequently Asked Questions