Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Net profit
$2,897
Net proceeds at exit
$7,397
Annualized return
6.41%
Litres remaining
212.7
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter cask purchase price ($).
- 2Enter litres of pure alcohol.
- 3Enter years maturing.
- 4Enter angel's share (%/yr).
- 5Enter price per litre growth (%/yr).
- 6Enter storage & insurance ($/yr).
- 7Enter exit fee (%).
- 8Read your net profit on the right — it updates as you type.
- 9Hit Share to keep the scenario or send it to someone.
About this calculator
Casks lose volume every year to evaporation. Model the angel's share, storage, and exit fees against your assumed price growth.
Worked example
Using the values the calculator loads with:
Inputs
- Cask purchase price: 4500 $
- Litres of pure alcohol: 250
- Years maturing: 8
- Angel's share: 2 %/yr
- Price per litre growth: 11 %/yr
- Storage & insurance: 90 $/yr
- Exit fee: 8 %
Results
- Net profit: $2,897
- Net proceeds at exit: $7,397
- Annualized return: 6.41%
- Litres remaining: 212.7
What each field means
Inputs
- Cask purchase price ($)
- The cask purchase price used in the calculation, measured in $. Starts at 4500 $ so you have a working example on load.
- Litres of pure alcohol
- The litres of pure alcohol used in the calculation. Starts at 250 so you have a working example on load.
- Years maturing
- The years maturing used in the calculation. Starts at 8 so you have a working example on load.
- Angel's share (%/yr)
- The angel's share used in the calculation, measured in %/yr. Starts at 2 %/yr so you have a working example on load.
- Price per litre growth (%/yr)
- The price per litre growth used in the calculation, measured in %/yr. Starts at 11 %/yr so you have a working example on load.
- Storage & insurance ($/yr)
- The storage & insurance used in the calculation, measured in $/yr. Starts at 90 $/yr so you have a working example on load.
- Exit fee (%)
- The exit fee used in the calculation, measured in %. Starts at 8 % so you have a working example on load.
Results
- Net profit
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Net proceeds at exit
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Annualized return
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Litres remaining
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the whiskey cask investment calculator work?
Casks lose volume every year to evaporation. Model the angel's share, storage, and exit fees against your assumed price growth.
What do I need to enter?
7 values: cask purchase price, litres of pure alcohol, years maturing, angel's share, price per litre growth, storage & insurance, and exit fee. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the net profit result mean?
It is returned as a money amount in US dollars and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
Who is this tool for?
It's built for anyone comparing money scenarios before committing — budgeting a payment, sanity-checking a quote, or seeing what a change in rate or term actually costs.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Whiskey Cask Investment Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/whiskey-cask-return
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/whiskey-cask-return" target="_blank" rel="noopener">Whiskey Cask Investment Calculator — RevenueLab</a> (2026).</p>
Source: [Whiskey Cask Investment Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/whiskey-cask-return) (2026).