ProSaaS · Simulator
SaaS ARR Buildout Simulator
Project ARR from new logos, expansion, and churn.
Assumptions
ARR (mo 24)
$3,161,716
MRR (mo 24)
$263,476
Multiple of start
3.2x
| Month | ARR | MRR |
|---|---|---|
| Month 3 | $1,256,277 | $104,690 |
| Month 6 | $1,516,418 | $126,368 |
| Month 9 | $1,780,480 | $148,373 |
| Month 12 | $2,048,523 | $170,710 |
| Month 15 | $2,320,607 | $193,384 |
| Month 18 | $2,596,792 | $216,399 |
| Month 21 | $2,877,141 | $239,762 |
| Month 24 | $3,161,716 | $263,476 |
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Built by The Crimson Bench · Educational model, not financial advice
About the SaaS ARR Buildout Simulator
Model 24 months of ARR: new bookings plus expansion against gross churn, to see recurring revenue compound.
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 ARR Buildout 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 ARR | $1,000,000 |
| New ARR / month | $80,000 |
| Monthly expansion | 1.5% |
| Monthly gross churn | 1% |
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.
ARR (mo 24)
$3,161,716
MRR (mo 24)
$263,476
Multiple of start
3.2x
| Month | ARR | MRR |
|---|---|---|
| Month 3 | $1,256,277 | $104,690 |
| Month 6 | $1,516,418 | $126,368 |
| Month 9 | $1,780,480 | $148,373 |
| Month 12 | $2,048,523 | $170,710 |
| Month 15 | $2,320,607 | $193,384 |
| Month 18 | $2,596,792 | $216,399 |
The Operator's Read
Expansion above churn means the base grows itself — new logos then compound on a rising floor. Net revenue retention is the quiet engine of every great SaaS ARR curve.
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 ARR Buildout Simulator calculate?
Model 24 months of ARR: new bookings plus expansion against gross churn, to see recurring revenue compound. It takes 4 assumptions — Starting ARR, New ARR / month, Monthly expansion, Monthly gross churn — and returns ARR (mo 24), MRR (mo 24), Multiple of start, along with a full projection table you can export.
How do I use the SaaS ARR Buildout Simulator?
Enter your own figures in the input fields above — Starting ARR, New ARR / month, Monthly expansion, and the rest. The model recalculates instantly and shows the resulting ARR (mo 24) and full breakdown. No sign-up needed to run it.
Is the SaaS ARR Buildout 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 ARR Buildout 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 ARR Buildout 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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