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Sobriety Calculator

Track your streak since a quit date, with money saved, units avoided and milestone badges for alcohol, smoking or any habit.

Related tools

All Practical tools →
Clothing size converterTops, bottoms and shirt collars converted separately between FR, IT, DE, UK and US — each with the body measurement EN 13402 makes its primary dimension.Commute Life Wasted CalculatorSee how many hours, full days and years of your life your commute adds up to — and what you could have done instead.Dew Point CalculatorDew point from air temperature and relative humidity (Magnus formula), with a comfort band.Diaper Size CalculatorThe right nappy size for your baby's weight, how many you'll use, and when to size up.Dishwasher Load OptimizerEnter what needs washing to see how many cycles you need and whether the next load is full enough to run.Gift Idea GeneratorRanks a hand-written library of 170 gift ideas against who you are buying for, the occasion, your budget and the interests you type in, and tells you why each one came out on top. A curated library with a scoring rule, not a language model — the same answers come back every time.Meeting Cost TickerWatch the real-time cost of a meeting tick up from attendee count and hourly rates, with per-person and projected totals.Polite Excuse GeneratorWrites several ready-to-send ways to say no, composed from hand-written sentence banks and varied by who you are answering, the tone you pick and how much you want to reveal. A curated composer, not a model — the same choices reproduce the same set, and a reshuffle draws a new one.

Sobriety Calculator works straight from this page — free, instant, nothing to install. You will find it under Practical, with Clothing size converter and Commute Life Wasted Calculator for the neighbouring cases.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What is Sobriety Calculator?

Track your streak since a quit date, with money saved, units avoided and milestone badges for alcohol, smoking or any habit.

When would I actually use this?

The questions no reference answers: what a meeting is costing while it runs, how many hours a commute has taken out of a year, how much detergent a load actually needs, and a few that exist for the pleasure of knowing — how many popcorn kernels would fill a room, what a hamster generates.

What is the most common mistake?

Quoting the playful ones as if they were measurements. A room filled with popcorn and a salary counted in bathroom breaks are arithmetic done honestly on premises chosen for fun; the number that comes out is exactly as solid as the assumption you fed it, which is the joke.

What else is filed next to it?

Clothing size converter, Commute Life Wasted Calculator and Dew Point Calculator share its section. They are not variants of it — being filed together is not the same as being alike — but that is where to look if this turned out not to be the tool you wanted.

Where do the figures come from?

The household ones follow the figure printed on the packet or the manufacturer's chart, which is why a detergent dose or a nappy size may not match another brand's. The rest state their assumptions on the page, because assumptions are the whole content of the answer.

Further reading

All guides →
ExplainerHow Long Until You Are Sober? Zero-Order Elimination ExplainedAlcohol leaves the body at a roughly constant mass per hour, whatever the concentration. That one property — zero-order elimination, unlike caffeine's exponential decay — explains why doubling the dose doubles the time, why nothing speeds it up, and why every estimate carries a wide error bar. With the Widmark relation worked through, and each market's legal limit stated separately.ExplainerThe Calories in a Drink Are Mostly the AlcoholEthanol carries 7 kcal per gram and the arithmetic is exact: volume × ABV × 0.789 × 7. A dry spirit is almost pure alcohol calories; a liqueur is nearly half sugar. Here is the derivation, the table, and the metabolic caveat stated without overclaiming.ExplainerWhat a Standard Drink Actually IsA standard drink is a defined mass of ethanol — and the definition changes at the border. The same glass of wine is 1.28 drinks in the United States, 1.79 in France and 2.28 in the United Kingdom.ExplainerDew Point: What It Is, and How the Calculator Gets ItMagnus–Tetens with the Alduchov–Eskridge coefficients, 17.625 and 243.04. Why an absolute number beats relative humidity for judging comfort, what temperature a window has to reach before it runs, and the one input the calculator does not check.GuideWhat a Meeting Costs the Company, and What the Number Is ForSalary is not the cost. The ticker applies no loaded-cost multiplier of its own, so the rate box is where you have to put it. And the number is for one comparison: a recurring meeting against the written update that would replace it.How-toHow Much Laundry Detergent to Use: Load Size First, Water Hardness SecondA normal medium load in a high-efficiency machine works out at 37 ml. Load size swings that threefold; water hardness only 1.28-fold — and the tool's hardness input carries no units at all. Here are the scales and the conversions it leaves out.