Last updated:

# Coffee Calculator

How to use the coffee calculatorHow do I calculate caffeine content in coffee?How do I calculate how much coffee can I drink?FAQs

The coffee calculator is the ultimate tool for assessing the amount of coffee you need, comparing it to the recommended healthy amount.

Our how much coffee should I drink calculator will also answer a few crucial questions regarding this life-giving liquid β we'll also find out the amount of caffeine in coffees & drinks of different brands and learn how to calculate caffeine content in coffee. β

Not a coffee lover yet? Try the tea brewing calculator!

## How to use the coffee calculator

It just couldn't be easier!

1. Write down your weight, using any unit of weight your heart desires.
• Are you very tolerant, and sometimes even massive amounts of coffee can't wake you up properly?
• Are you more tolerant than your friends?
• You don't need more or less than the average person. π₯€
• Are you more sensitive than the people you know?
• Are you very sensitive, with any larger amount of caffeine in coffee making you feel agitated?
1. Choose your favorite caffeine-filled drink!
2. Enjoy the results & tips generated by our how much coffee do I need calculator. π

π‘ Did you know that chocolate and tea also contain considerable amounts of caffeine?

Find out why both chocolate & coffee might be dangerous to your pets:

## How do I calculate caffeine content in coffee?

Let's get to work!

1. Look at the label of your favorite drink β find the amount of caffeine per 100g.
2. Look for the mass/volume of your drink in grams and milliliters, respectively.
3. Let's calculate! π€
• If you found the mass: Total caffeine = (Mass/100) Γ Label amount.
• If you found the volume, your calculations won't be as accurate; we need to assume that 1 ml = 1 g. Then, you may use the previous equation.
1. It's all done! Congrats.

## How do I calculate how much coffee can I drink?

Let's try the method presented in our coffee calculator:

1. Write down your weight in kilograms (kg).

• Very tolerant to coffee:

Caffeine needed(mg) = Weight Γ8

• Normal sensitivity:

Caffeine needed(mg) = Weight Γ6

• High sensitivity:

Caffeine needed(mg) = Weight Γ3

3. Find out the amount of caffeine in your favorite coffee.

4. Use the equation:

Number of portions = Caffeine needed/ Your coffee caffeine

Et voila! π₯³
Remember: max recommended caffeine amount is 400mg.

FAQs

### How much coffee can kill me?

The lethal dose of caffeine is close to 10 grams. As you can imagine, this amount is pretty difficult to reach β you'd have to drink 75-100 cups of regular coffee!

However, remember that:

• Different people have different sensitivity and metabolism.
• Energy drinks usually contain much more caffeine than coffee. π΅

### How can I know if I overdosed coffee?

Signs & symptoms of coffee overdose include:

• Seeing flashes;
• Ear ringing;
• Nausea & vomiting;
• Increased thirst;
• Headache, stomach ache, chest pain;
• Irritability, confusion;
• Rapid breathing, rapid heartbeat; and
• Convulsions, muscle contractions, twitching.