VC IRR Calculator
The formula
What the vc irr tells you
The time-corrected multiple: the compound annual rate that turns the invested dollar into the exit dollar.
Calculation: IRR = MOIC^(1 ÷ years) − 1. Enter your inputs and every substitution is shown below the result.
Reading the result
Venture targets ~25%; below 10% an index fund with none of the concentration wins.
Rules of thumb: Top-quartile venture vintages sustain 15–25% net IRR
Limitations and best practice
IRR flatters early exits and punishes slow calls — pair every IRR with MOIC and DPI or you are reading one leg of a stool.
This calculator gives an estimate based on standard formulas; it is not professional financial, medical, legal or engineering advice. Verify anything you plan to act on with a qualified professional and your own records.
Frequently asked questions
Why do IRR and MOIC disagree?
Is IRR enough for LP due diligence?
Source & methodology
Standard IRR; ILPA reporting templates.
VC IRR explained: formula, worked example and honest limits
Capital decisions deserve better than a gut feeling — this page gives you the arithmetic to defend one. Searchers land on a VC IRR page for three reasons — to plan, to compare options, and to check that somebody else’s arithmetic is honest. This tool serves all three, and everything after the calculator explains the model instead of hiding it.
It helps to separate the mechanics from the interpretation. The mechanics are fixed: IRR = MOIC^(1 ÷ years) − 1. Anyone, anywhere, entering the same inputs will get the same 16.7%. The interpretation is where experience counts: whether 16.7% is good, normal or alarming depends on comparisons covered below, and that is the part most articles about VC IRR never explain.
What makes VC IRR worth calculating is not precision but position: it tells you which side of a threshold you are on, and by how much. A rough figure that settles the direction beats an elaborate one that never commits.
What makes a calculation page trustworthy is that its copy is derived from its own arithmetic: here annualized return (IRR) = 16.7%, recomputed every time a field changes, and the sensitivity section ranks the inputs that move the result — Holding period first, at ≈12.1 % of the headline for a ten-percent error either way in that input. Work down the page and by the end you could re-derive the result in a spreadsheet from memory.
How VC IRR is computed, line by line
The engine implements a single stated model: IRR = MOIC^(1 ÷ years) − 1. There is no hidden coefficient and no login-gated precision — the formula printed is the formula executed, which is also what makes the result citable.
Return multiple (×) (example value 4) is a measured number in the unit named by the label; the formula does not convert for you. Replace the example with the figure from your own records — the tool recomputes instantly and the printed steps follow your numbers.
Holding period (years) (example value 9) is a numeric input whose unit is fixed by the label; a wrong unit is a wrong answer wearing a plausible disguise. If the period is partial, decide whether you mean elapsed or planned time and keep that meaning across every field.
A fully worked VC IRR example
The tool prints its own working; this is the same arithmetic on the example values, reproduced so you can follow it by hand. Starting figures: Return multiple (×), Holding period (years). Run to the end, the annualized return (IRR) resolves to 16.7% — Equity-like — a miss for venture on the bands this tool uses.
- IRR = 4^(1/9) − 1 = 16.7%
MOIC needed for 25% IRR over this span — 7.45 ×. Compare it against the main result of 16.7% before drawing conclusions.
Years to 5× at this rate — 10.4. Read next to the headline, this is the figure that shows the shape of the trade-off.
Doubling time — 4.5 years. Compare it against the main result of 16.7% before drawing conclusions.
Overwrite any input above and every line of this example updates with it — the substitution is live, not a screenshot of somebody else’s numbers.
Scenario table: VC IRR at ±10 % and ±20 % of the key input
The honest version of any estimate is a corridor, and this one is cheap to produce: VC IRR was recomputed at 5 points along the dominant input, with every other field left untouched.
| Holding period setting | Annualized return (IRR) |
|---|---|
| 80 % of the example value | 21.2% |
| 90 % of the example value | 18.7% |
| example inputs | 16.7% |
| 110 % of the example value | 15.0% |
| 120 % of the example value | 13.7% |
That spread — 13.7% at the low end, 21.2% at the high — is what a careful read of VC IRR looks like: a band you can state out loud, with the reason for each edge. Reproduce it in the form above by editing Holding period alone; the substitution steps will follow your figures exactly.
Sensitivity: which inputs change VC IRR the most
This list was computed for this specific engine just now: each numeric input was nudged ±10 % while every other field held its example value, and the annualized return (IRR) was recalculated from scratch. Read it as a map of where VC IRR is fragile — drawn for the example inputs, which is the map you want when deciding what to measure carefully.
- Nudge Holding period by ±10 % and VC IRR lands between 15.0% and 18.7% (sensitivity ≈12.1 %)
- Return multiple: ten percent up gives 17.9%, ten percent down gives 15.3% — ≈8.2 % of the annualized return (IRR) either way
Holding period is the dominant lever here: ten percent either way moves the result by about 12.1 %, from 15.0% to 18.7%. That is where a careless figure does the most damage, so check it against a source, and treat Return multiple as the second priority (≈8.2 % per ten percent). Everything below that can stay approximate, which is a licence to stop chasing data that would not change the decision.
Is your VC IRR good — reading the result bands
The value above only becomes useful the moment you know what it is being measured against. On the example inputs the band reads “Equity-like — a miss for venture”; your own figures place you on a different rung of the same ladder. The sensitivity list shows how far a modest input error moves you along that ladder: for Holding period, ±10 % covers 15.0% to 18.7%. The practical reading rules: ask what would have to change to move you one band. If the answer is “a small, plausible input difference”, the band itself is not the finding — the uncertainty is.
The comparison worth making is not with somebody else’s VC IRR but with the version of your own situation measured last quarter — same formula, same conventions, different inputs.
How people get VC IRR wrong
IRR flatters early exits and punishes slow calls — pair every IRR with MOIC and DPI or you are reading one leg of a stool. This calculator gives an estimate based on standard formulas; it is not professional financial, medical, legal or engineering advice. Verify anything you plan to act on with a qualified professional and your own records.
Reporting the headline and quietly discarding MOIC needed for 25% IRR over this span. The companions are where the shape of the trade-off survives the rounding.
One mistake is specific to this engine: assuming every input matters equally. The computation above shows Holding period dominating — a careful figure there beats false precision everywhere else.
The subtlest error is answering the wrong question precisely. Confirm that annualized return (IRR) is actually the quantity your decision needs — the arithmetic is flawless either way, which is what makes the mistake invisible.
VC IRR verification checklist
- Record the date and the inputs alongside the number so future-you knows what was assumed.
- Re-run the calculation with a ±10 % stress on the two most sensitive inputs.
- Put Holding period under a magnifier; the sensitivity table above is the reason why.
- Recompute once with the dominant input deliberately set low, and see whether the decision changes.
- Note the date and the inputs beside the number so the figure can be audited later.
- Confirm the answer against one independent method or published benchmark for VC IRR.
How to use the VC IRR tool properly
The tool does the arithmetic; the routine below is what makes the arithmetic trustworthy. Five steps, a minute total — and afterwards you will know not just what the number is, but which assumption produced it.
Step 1 — start from evidence. The inputs behind VC IRR are return multiple (×), holding period (years). Write them down with their source next to each one; if you cannot name where a figure came from, that is the input most likely to be wrong. Re-running a number costs seconds; retracting a decision costs considerably more.
Step 2 — start from the case you can defend. Enter pessimistic-but-honest figures first; the optimistic run is a ceiling, not a plan. A conclusion that holds on conservative inputs holds everywhere. Re-running a number costs seconds; retracting a decision costs considerably more.
Step 3 — play with the inputs on purpose. Ten percent up, ten percent down, one field at a time. Within a few minutes you will know this calculation better than most people who quote its results. The input you reach for first is usually the one you measured longest ago.
Step 4 — stress before you commit. A decision that survives a ten-percent squeeze on its two biggest inputs needs no luck to be sound. One that does not survive is a decision about hope, not about arithmetic. Write the assumptions in the same file as the result, and future arguments take minutes instead of meetings.
Step 5 — write the one-line memo. “Annualized return (IRR) = 16.7% on this date, from these inputs.” That line is the entire deliverable; everything else on this page is how you earned the right to write it. Write the assumptions in the same file as the result, and future arguments take minutes instead of meetings.
Who actually uses VC IRR — and when
Business & Entrepreneurship arguments end at arithmetic or they do not end. VC IRR is the arithmetic: 16.7% on the example inputs, reproducible by anyone who types the same numbers. If the verdict changes with a ten-percent nudge, report the nudge alongside the number.
The companion outputs — MOIC needed for 25% IRR over this span and Years to 5× at this rate — exist for the second stage of that screen: the headline sizes the prize, while the companions describe the trade-off you are accepting to get it. Rounding early is the quietest way to introduce a permanent error.
Nothing here is stored or transmitted, so the habit of checking is free: open the page, re-enter current figures, compare with the number you saved last time. When two sources disagree, it is almost never the arithmetic that differs.
The questions that come up most about VC IRR
What affects VC IRR the most?
Measured on this engine, Holding period is the dominant lever: moving it ±10 % shifts the annualized return (IRR) across 15.0% to 18.7% — about 12.1 % of the headline, with Return multiple next at ≈8.2 %. The ranked list in the sensitivity section is computed live, not asserted from a template.
Which matters more: return multiple or holding period?
By the numbers, Holding period: a ten-percent change in it moves the result ≈12.1 %, versus ≈8.2 % for Return multiple. Spend your measuring effort in that order — precision on the weaker lever buys almost nothing.
What is a typical VC IRR?
On the worked example above VC IRR comes out at 16.7%. Treat that as one point on a distribution rather than a norm: the bands, the companion outputs and the sensitivity ranking tell you how wide the plausible range really is.
How do I calculate VC IRR by hand?
Three steps: write the formula (IRR = MOIC^(1 ÷ years) − 1), insert your values, and simplify. The worked example section shows exactly that chain for the default inputs; replicating it once on paper teaches you more about VC IRR than any number of calculator runs.
What happens to VC IRR if holding period changes by 10 %?
Try it in the form above and the printed substitution will follow you; the pre-computed answer for the defaults is 15.0% to 18.7% across the ten-percent probe, i.e. ≈12.1 % sensitivity on the annualized return (IRR).
Is the VC IRR result of 16.7% good or bad?
The tool answers “what”, not “whether”: 16.7% carries the verdict “Equity-like — a miss for venture” for the default case, which is a starting interpretation rather than a verdict on your situation. Re-run with your own figures and compare the bands.
How do I calculate VC IRR manually?
Write down the inputs, then follow the printed steps in order — IRR = MOIC^(1 ÷ years) − 1. A spreadsheet replicates it with two or three cells. The manual route is worth doing once to build intuition; after that the calculator saves time and eliminates transcription slips.
Should I use VC IRR before launching?
Yes — a VC IRR run on honest inputs before spending is the cheapest consulting an entrepreneur can buy. Re-run at every pricing change; the number moves more often than founders expect.
Why do IRR and MOIC disagree?
MOIC measures size, IRR measures speed; both are needed to describe performance.
Is IRR enough for LP due diligence?
No — capital-weighted and duration-adjusted metrics complement it; regulators now scrutinize IRR-only marketing.
Can this tool see the numbers I type?
It cannot. There is no submission step: the calculation happens in your browser and the result disappears when you close the page. Treat the fields above as a scratchpad rather than a form.
The vocabulary of VC IRR
- MOIC needed for 25% IRR over this span
- 7.45 × on the example inputs — a companion figure printed beside the headline of VC IRR so that no result is read in isolation.
- Years to 5× at this rate
- 10.4 for the VC IRR worked case; it sits next to the main result because it carries context the headline leaves out.
- Doubling time
- 4.5 years for the VC IRR worked case; it sits next to the main result because it carries context the headline leaves out.
- Annualized return (IRR)
- The primary output of this tool: 16.7% for the default inputs, computed exactly from IRR = MOIC^(1 ÷ years) − 1.
- Worked example
- The calculation written out in full so that nothing on this page has to be taken on trust.
- Verdict band
- The interpretation attached to a result (“Equity-like — a miss for venture” on these inputs), which turns a bare number into a position on a scale.
- Sensitivity (±10 %)
- How far the VC IRR moves when a single input is nudged ten percent either way; the ranked list on this page is computed live from this engine.
Methodology, sources and limits
There is no black box on this page — the engine evaluates IRR = MOIC^(1 ÷ years) − 1. Source of record: Standard IRR; ILPA reporting templates. Any other implementation of this model should return the same figure for the same inputs. If one does not, the difference is in its assumptions — which this page prints and that one probably does not.
Nothing here replaces a qualified professional, and nothing here is approximate either — the arithmetic is exact, and the honesty is in the inputs you supply. The design constraint was set by usefulness rather than by comfort: an estimate you can interrogate beats an answer you have to trust.
After the number: what to do with it
Pair this figure with the companion outputs above — the headline sizes the prize, the companions describe the risk.
The audience here is investors and founders comparing opportunities on equal terms. Everything you need to defend the result — formula, substitution, sensitivity, source — is printed above, so the only remaining variable is the honesty of your inputs.