Tools
Wine tools
16 tools that give you an answer and then show you exactly how they got there. No result here is a bare number.
Every calculator on WineHQ returns its formula, the definition of each variable, the worked steps with your numbers substituted in, its assumptions and the point at which it stops being reliable. That breakdown is part of the answer and it is never hidden behind a subscription — a tool that will not show its working is asking you to take its word for it.
Serving it
The decisions you make in the ten minutes before pouring — and the ones that matter more than people expect.
How long will it take to chill this bottle?
Chilling time calculator
An estimate based on Newton cooling, calibrated to the familiar rules of thumb, with the arithmetic shown and the freezer risk stated.
How long does opened wine last?
How long will this keep?
What actually happens to an opened bottle, and how long you have — differentiated by style, because a Fino lasts days and a Madeira lasts months. Says which fortified wines are the exceptions and why.
What temperature should I serve this at?
Serving temperature finder
Every style, grouped by temperature band, with ranges derived from each wine’s own taste profile — and a practical way to hit them without a thermometer.
How long to warm wine back up?
I chilled it too much
How long an over-chilled bottle or glass takes to come back to serving temperature — and why a bottle takes hours while the glass in your hand takes minutes.
Does this wine need decanting?
Should I decant this?
Most wines do not need decanting. Say what you have and how old it is, and this says whether to bother, why, for how long, when it would actively make things worse — and what to use if you do not own a decanter.
Which glass should I use?
Glass finder
The shape that suits a given wine and the reason it helps — plus an honest note on when the difference is too small to care about.
Buying and keeping it
Quantities, formats and storage.
How much wine do I need for my party?
Event wine planner
A provisioning estimate for a host: how many bottles to buy for a given number of guests over a given number of hours.
Do I need a wine fridge, and which one?
Do I need a wine fridge?
Usually not, and this says so. Describe where you keep wine and how long you keep it, and get a verdict — including the free fixes that beat a purchase, and what not to pay extra for if you do buy one.
How many glasses are in a bottle of wine?
Glasses per bottle
Depends entirely on the pour. This shows the answer for every standard pour size and bottle format.
Is where I keep my wine actually any good?
Storage conditions check
Assesses temperature, stability, humidity, light, vibration and closure against how long you intend to keep the wine.
How big is a magnum? What is a Jeroboam?
Bottle size converter
Every format from Piccolo to Nebuchadnezzar, converted between each other — including the two different sizes both called Jeroboam.
Understanding it
Reading the label and the numbers on it.
What does this word on the bottle mean?
Label decoder
Every term you might see on a bottle, by country and by category, with whether it is legally defined and what it does not tell you.
How sweet is this word on the label?
Sweetness decoder
Brut, Extra Dry, Sec, trocken, feinherb, Spätlese, Sercial — what each means, on the scale of the system that defines it. There is no single sweetness ladder, and this explains why the words contradict each other.
How many units are in a glass of wine?
Alcohol units calculator
UK units from volume and ABV, using the official definition of a unit as 10 ml of pure ethanol. Arithmetic shown in full.
How many calories are in a glass of wine?
Wine calorie estimator
An estimate from ABV and residual sugar. Explicitly an estimate — residual sugar is almost never on the label.
When something is wrong
Working out what happened to a bottle that does not taste right.
There is no drinking-capacity estimator, no blood-alcohol calculator, no consumption challenge and no leaderboard. The event planner estimates what a host should buy, which is a stock question, not a drinking target. WineHQ will not build tools that turn alcohol intake into a score.