ProRevenue · Simulator
SaaS Growth Simulator
Project 24 months of MRR from new-sales, churn, and expansion.
Assumptions
Ending MRR
$115,323
Ending ARR
$1,383,882
ARR growth
477%
| Month | MRR | ARR (run-rate) |
|---|---|---|
| Month 3 | $33,890 | $406,675 |
| Month 6 | $47,163 | $565,961 |
| Month 9 | $59,849 | $718,186 |
| Month 12 | $71,972 | $863,664 |
| Month 15 | $83,558 | $1,002,692 |
| Month 18 | $94,630 | $1,135,558 |
| Month 21 | $105,211 | $1,262,534 |
| Month 24 | $115,323 | $1,383,882 |
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Built by The Crimson Bench · Educational model, not financial advice
About the SaaS Growth Simulator
Model your recurring revenue forward two years. Enter starting MRR, monthly new MRR, churn, and expansion to see the MRR curve, ending ARR, and how retention quietly makes or breaks the trajectory.
It's built for directional planning: change any assumption and watch the whole projection move, the way a seasoned operator pressure-tests a plan before committing capital. Everything is computed live in your browser — nothing is sent anywhere.
How the SaaS Growth Simulator Works
The model takes 4 assumptions and returns 3 headline metrics plus a full breakdown. Here is exactly what goes in and what comes out — no black box.
The Inputs
| Assumption | Example value |
|---|---|
| Starting MRR | $20,000 |
| New MRR added / month | $5,000 |
| Monthly churn | 3% |
| Monthly expansion | 1.5% |
Worked Example
Every figure below is produced by the live model using the example assumptions above. Change any input in the simulator to see your own numbers.
Ending MRR
$115,323
Ending ARR
$1,383,882
ARR growth
477%
| Month | MRR | ARR (run-rate) |
|---|---|---|
| Month 3 | $33,890 | $406,675 |
| Month 6 | $47,163 | $565,961 |
| Month 9 | $59,849 | $718,186 |
| Month 12 | $71,972 | $863,664 |
| Month 15 | $83,558 | $1,002,692 |
| Month 18 | $94,630 | $1,135,558 |
The Operator's Read
Churn outruns expansion, so you're leaking. Try lifting expansion a point or two — it moves the 24-month number more than new sales do.
Assumptions & Limitations
- •The model is deterministic: it projects your inputs forward with clear arithmetic, not a Monte-Carlo or probabilistic forecast. It shows one scenario at a time — run several to bracket a range.
- •Defaults are illustrative benchmarks, not your business. Replace every field with your real numbers before drawing conclusions.
- •It abstracts away taxes, financing, seasonality, and one-off events unless a field explicitly captures them. Treat the output as a directional estimate.
- •This is an educational tool, not financial, investment, tax, or legal advice. Validate real decisions with a qualified professional.
Frequently Asked Questions
What does the SaaS Growth Simulator calculate?
Model your recurring revenue forward two years. Enter starting MRR, monthly new MRR, churn, and expansion to see the MRR curve, ending ARR, and how retention quietly makes or breaks the trajectory. It takes 4 assumptions — Starting MRR, New MRR added / month, Monthly churn, Monthly expansion — and returns Ending MRR, Ending ARR, ARR growth, along with a full projection table you can export.
How do I use the SaaS Growth Simulator?
Enter your own figures in the input fields above — Starting MRR, New MRR added / month, Monthly churn, and the rest. The model recalculates instantly and shows the resulting Ending MRR and full breakdown. No sign-up needed to run it.
Is the SaaS Growth Simulator free?
Yes — you can run the simulator and see the headline results for free. Toolkit Pro unlocks the full projection table, Excel/PDF export, saved scenarios, and AI analysis: $180/mo, $1,728/yr, or unlock any 3 simulators for $20.
What's the difference between this and a free calculator?
A calculator answers one question. This simulator models the full picture — multiple linked assumptions, a projection table, and scenario comparison — the way an operator would build it in a spreadsheet, but instantly.
Who built the SaaS Growth Simulator?
The Crimson Bench's Ivy League-educated operators — the same people we deploy into C-suites. This is the self-serve version of a model they'd build inside a live engagement.
Is this financial advice?
No. The SaaS Growth Simulator is an educational modeling tool for directional planning — not financial, investment, tax, or legal advice. Validate any real decision with a qualified professional.
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The Crimson Bench · Est. 2002 · Founded in New York City
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