Why does the SaaS world have two metrics for the same number?

Different audiences. Operators care about month-to-month patterns: where churn hits, when expansion lands, what the burn-vs-revenue ratio looks like. Boards care about annualized scale and growth rate. ARR is also more comparable across companies (some bill annually, some monthly) — annualizing normalizes the comparison.

What about quarterly?

QRR (Quarterly Recurring Revenue) is reported by some public SaaS companies because their financials are quarterly. QRR = MRR × 3 = ARR / 4. For private companies, MRR and ARR dominate; QRR appears mostly in earnings releases.

Do annual prepays count as ARR or MRR?

Both. The customer’s annual contract value (ACV) goes directly into ARR (it's the run-rate). For MRR purposes, divide the annual prepay by 12. So a $24,000 annual contract is $2,000 MRR / $24,000 ARR. This matters for cohort analysis and unit economics — your cash-collected ratio is different from your recognized-MRR.

What's NOT included in ARR?

Anything non-recurring: implementation fees, professional services, consulting, training, one-time setup, transaction fees. Variable usage-based overages are also typically excluded from committed ARR (sometimes reported separately as “consumption revenue”). The cleaner the ARR composition (high % of subscription, low % of services), the higher the valuation multiple investors will apply.

How is ARR different from revenue?

ARR is run-rate (current state annualized), revenue is realized (actually collected). A company at $1M MRR enters January with $12M ARR. If they don’t grow or churn, they’ll book $12M revenue that year. If they grow 50% across the year, they’ll exit December at $18M ARR but book somewhere between $13-15M actual revenue (depending on how growth distributed across quarters). Investors care about ARR (forward-looking trajectory); accountants care about revenue (GAAP recognized).

What's a good MRR growth rate?

Stage-dependent. Early stage (under $1M ARR): 15-20% MoM is exceptional, 10% solid. $1-10M ARR: 5-10% MoM is great. Series B+ ($10M+): 3-5% MoM excellent. Compounded over a year, 5% MoM is 80% YoY — impressive at scale. The “rule of 40” heuristic: MRR growth rate (annualized) + EBITDA margin should sum to 40+ for a healthy SaaS business.

Career & Growth · Free tool

MRR to ARR Converter

Convert between MRR, ARR, and quarterly revenue instantly. Includes customer and plan price modes for a complete view. A free online tool with no sign-up.

Updated June 2026

Start from

MRR ($)Customer count (optional)

MRR

$50,000

Monthly recurring revenue

ARR

$600,000

MRR × 12

Quarterly

$150,000

MRR × 3

Per-customer economics

Customers: 500
Avg revenue per customer (monthly): $100.00
Avg revenue per customer (annual): $1,200

Why both metrics matter: SaaS investors and boards think in ARR. Operators and cash flow think in MRR.

Found this useful?Email Buy Me a Coffee

What it does

MRR (Monthly Recurring Revenue) and ARR (Annual Recurring Revenue) are the two dominant unit-economic metrics in SaaS, and they describe the same revenue stream from different time-horizon viewpoints. ARR = MRR × 12 by direct definition, but the conversation each metric drives is different. Operators (CEOs, founders, finance teams) tend to think in MRR because monthly cash flow, monthly burn, and monthly growth-rate tracking match the operational rhythm. Boards, investors, and acquirers think in ARR because the deal-size headline (“Series B at $20M ARR”) is cleaner and matches annual planning cycles.

The converter handles the four-way conversion fluently: any of MRR, ARR, quarterly recurring revenue (QRR = MRR × 3), or customer count × ARPA (Average Revenue Per Account) → all four equivalent forms. The mathematical relationships: MRR × 12 = ARR; MRR × 3 = QRR; ARR / 12 = MRR; ARR / 4 = QRR; customers × monthly ARPA = MRR; customers × annual ARPA = ARR. Useful for board-deck preparation (translating your internal MRR view into the ARR number investors expect), pitch-deck math (sanity-checking the “$10M ARR by year 3” claim against required customer counts and ARPA assumptions), and quarterly reporting (translating between QRR for quarterly statements and the ARR/MRR internal metrics).

Caveat: MRR/ARR specifically measures RECURRING subscription revenue. One-time implementation fees, professional services, consulting hours, and non-recurring expansion revenue do NOT count toward MRR/ARR. This matters for valuation: a SaaS company at $5M ARR + $5M services revenue is NOT a $10M ARR company; investors will value the ARR portion at SaaS multiples (8-15× depending on growth) and the services portion at consulting multiples (1-2×). Cleaner the ARR composition, higher the valuation.

Embed this tool on your siteShow snippet

Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.

<iframe src="https://freetoolarena.com/embed/mrr-to-arr-converter" width="100%" height="720" frameborder="0" loading="lazy" title="MRR to ARR Converter" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>

Embed docs →

How to use it

Pick your input mode: MRR, ARR, QRR, or customers × ARPA.
Enter the value.
Read all four equivalent forms instantly.
Use the customer × ARPA mode to back-calculate: “to hit $10M ARR with $200/mo ARPA, I need 4,167 customers.”
Save outputs for board-deck math or pitch-deck sanity checks.

When to use this tool

Translating operational MRR view into investor-facing ARR for board decks.
Reverse-engineering customer-count requirements from ARR targets.
Comparing yourself to peer companies that report in different units (MRR vs ARR).
Quarterly board reviews where you need to flip between QRR (financial statements) and ARR (KPI dashboard).
Pitch-deck preparation — investors expect ARR; internal teams report MRR.

When not to use it

Mixed-revenue companies — pure ARR/MRR conversion ignores services, one-time fees, transaction-based revenue. Use a more nuanced model.
Usage-based or consumption pricing models — MRR is a stretch when revenue varies monthly with usage; report committed-revenue separately.
Predicting revenue (forecasting) — MRR/ARR are point-in-time measurements, not projections. Build a separate forecast model.
Companies with annual-prepay-only billing — annual prepays count as ARR but the monthly cash impact is lumpy; track booked vs recognized separately.

Common use cases

Verifying a number or output before passing it on
Quick conversion during a typical workday
Pre-decision sanity-check on inputs and outputs
Educational use — demonstrating the underlying concept

Frequently asked questions

Why does the SaaS world have two metrics for the same number?: Different audiences. Operators care about month-to-month patterns: where churn hits, when expansion lands, what the burn-vs-revenue ratio looks like. Boards care about annualized scale and growth rate. ARR is also more comparable across companies (some bill annually, some monthly) — annualizing normalizes the comparison.
What about quarterly?: QRR (Quarterly Recurring Revenue) is reported by some public SaaS companies because their financials are quarterly. QRR = MRR × 3 = ARR / 4. For private companies, MRR and ARR dominate; QRR appears mostly in earnings releases.
Do annual prepays count as ARR or MRR?: Both. The customer’s annual contract value (ACV) goes directly into ARR (it's the run-rate). For MRR purposes, divide the annual prepay by 12. So a $24,000 annual contract is $2,000 MRR / $24,000 ARR. This matters for cohort analysis and unit economics — your cash-collected ratio is different from your recognized-MRR.
What's NOT included in ARR?: Anything non-recurring: implementation fees, professional services, consulting, training, one-time setup, transaction fees. Variable usage-based overages are also typically excluded from committed ARR (sometimes reported separately as “consumption revenue”). The cleaner the ARR composition (high % of subscription, low % of services), the higher the valuation multiple investors will apply.
How is ARR different from revenue?: ARR is run-rate (current state annualized), revenue is realized (actually collected). A company at $1M MRR enters January with $12M ARR. If they don’t grow or churn, they’ll book $12M revenue that year. If they grow 50% across the year, they’ll exit December at $18M ARR but book somewhere between $13-15M actual revenue (depending on how growth distributed across quarters). Investors care about ARR (forward-looking trajectory); accountants care about revenue (GAAP recognized).
What's a good MRR growth rate?: Stage-dependent. Early stage (under $1M ARR): 15-20% MoM is exceptional, 10% solid. $1-10M ARR: 5-10% MoM is great. Series B+ ($10M+): 3-5% MoM excellent. Compounded over a year, 5% MoM is 80% YoY — impressive at scale. The “rule of 40” heuristic: MRR growth rate (annualized) + EBITDA margin should sum to 40+ for a healthy SaaS business.

Learn more

Explore more career & growth tools

100% in-browserNo downloadsNo sign-upMalware-freeHow we keep this safe →