Tools

Small tools for the
questions at the table.

How strong is this glass, how many bottles to buy, how cold to serve it, what to pour with dinner. Choose a tool from the list and work it out. Calculations follow methods published by the NHS and Drinkaware.

Everything is calculated in your browser. Nothing you type is sent anywhere.

The tool list

Carte des outils

Alcohol in your glass Calculator
Bottles for a gathering Calculator
Serving temperature Finder
Food pairing Finder

Coming to the list

Label decoder · Cellar tracker · Tasting notes sheet

Calculator

Alcohol in your glass

Choose a pour and the strength on the label to see how much pure alcohol is in the glass.

Pour size

Volume × ABV × 0.789 g per ml. One UK unit is 10 ml of pure alcohol; other countries define a standard drink differently.

Pure alcohol

17.9 g

2.3 UK units

In 175 ml of wine at 13% ABV.

Tool questions

The method behind each number.

Every result comes with the formula or rule it uses. Official guidance from the NHS and Drinkaware underpins the alcohol calculations.

How is alcohol content calculated?
Pure alcohol (in grams) = volume in ml × ABV% ÷ 100 × 0.789 (the density of ethanol). UK units = volume in ml × ABV% ÷ 1000. This is the method used by Drinkaware and the NHS alcohol units guide.
What is a UK unit of alcohol?
One UK unit equals 10 ml (8 g) of pure alcohol. The UK Chief Medical Officers recommend no more than 14 units per week for both men and women, spread over at least three days. See the full guidance on the NHS alcohol units page.
How many bottles do I need for a dinner?
A standard 750 ml bottle holds about five 150 ml pours. The tool calculates (guests × glasses) ÷ (750 ÷ pour size), rounded up. For large gatherings, the standard industry rule of thumb — one bottle per two guests for a two-hour dinner — is a useful cross-check.
At what temperature should I serve wine?
Serving temperature has a large effect on aroma and palate. Light whites taste best at 7–10 °C; full-bodied reds at 16–18 °C. The Guild of Sommeliers and Decanter both publish detailed serving temperature guides.
Is the food pairing finder a definitive guide?
No — it offers evidence-based starting points based on classic principles (matching weight, balancing acidity, contrasting richness). For deeper reading, see the Guild of Sommeliers food-and-wine pairing resources or the Food pairing principles guide here.

How the tools work

Simple by design.

i.

The method is shown

Every result comes with the formula or rule behind it, in one line.

ii.

Nothing leaves your device

No account, no sign-up. The numbers you enter stay in your browser.

iii.

A guide stands behind each

Each tool links to the guide that explains the idea in full. Open the guides