Alcolator - Alcohol Consumption Calculator

Welcome to an alcohol calculator!

Description

Love attending parties, but always overdo it with alcohol? Don't worry, the calculator will help you calculate how much alcohol you should/can drink! Just give answers to all the questions and enjoy a party with no worries about tomorrow's hangover, as simple as that!

To give as precise result as possible it considers a lot of factors like your alcohol tolerance or whether you smoke (described in more detail below). Attention! The results may vary from the real values due to special configurations of organisms.

I used React and SCSS to enhance my proficiency in these technologies. Why React TypeScript? Well, because it's for me it's much more comfortable to use TS with its types, interfaces, and other features instead of JS. Avoiding potentional code issues is cool, isn't it?

A research was conducted in order to find formulas and the effect of different factors on alcohol absorption.

Navigation

1. Description

2. Installation and Running

3. Last Update

   • New Featrue
   • Other Updates

4. Formulas and Factors

   • Formulas
   • Factors

5. Usage

6. Sources

Installation and Running

1. Clone the repository.

git clone https://github.com/Abviol/alcolator-app.git

2. Download the last version of Node.js and npm (Node Package Manager) for your OS here. Skip if you have.

3. Navigate to the root folder and install dependencies.

npm install

4. Run the project

npm start

Last Update

New Feature

Now you can set drink strength with choosing an alcohol drink from the list of 14 drinks most popular drinks! It includes:

• Absinthe (70%)
• Cognac (40%)
• Jack Daniel's - Old No. 7 (40%)
• Bacardi White (40%)
• Bacardi Gold (40%)
• Vodka (40%)
• Tequila (38%)
• Gin London (37.5%)
• Bacardi Black (37.5%)
• Jägermeister (35%)
• Port wine (20%)
• Baileys (17%)
• Wine (15%)
• Beer (5%)

You still can set drink strength manually.

Other Updates

1. Redux and Redux Toolkit were implemented into the project instead of useState React hooks for form validation and storing entered values.
2. The project was deployed to Firebase.

Formulas and Factors

Formulas

Blood alcohol content - Forward Widmark calculation:

C = 100vzadr / M − βt

Where:

• C is the BAC at the relevant time
• v is the volume of drink consumed in millilitres
• a is the proportion of the alcohol absorbed
• z is the strength of the drink as percentage ABV ÷ 100
• d is the density of alcohol (= 0.789 grams per millilitre, constant)
• r is the subject’s proportion of body water in litres/kilogram, divided by the proportion - of water in blood in litres/litre (Widmark Factor)
• M is the mass of the subject, in kilograms
• β is the subject’s elimination rate, in mg% per hour
• t is the duration from the start of the session to the relevant time, in hours

Widmark Factor

For men r = 1.0181-0.01213 × BMI

For women r = 0.9367-0.01240 × BMI

Body mass index (BMI):

Weight (kg) / Height^2 (m^2)

Factors

• gender
• weight
• height
• strength of the drink(s)
• snacks
• where to drink
• with who to drink
• level of tolerance
• frequency of having a hangover
• any physical activity
• do you smoke
• the goal of the bender

Usage

See the video with a showcase here.

Sources

The original app, which idea I aimed to implement by myself: How much alcohol to drink?

The documentation with the main formula: Alcohol calculations and their uncertainty.