Daily Caffeine Intake Calculator

How to calculate Caffeine calculator?

Calculate the milligrams of caffeine per kilogram of body weight by dividing your total daily intake by your weight, then compare that value to common recommended limits.

Key formula: caffeine_per_kg = total_caffeine_mg ÷ weight_kg

Using the Caffeine calculator calculator: an example

Example values: total caffeine = 350 mg; body weight = 70 kg.

Step-by-step calculation:

1. Enter total daily caffeine: 350 mg.
2. Enter body weight: 70 kg.
3. Compute caffeine per kg: 350 ÷ 70 = 5 mg/kg.
4. Compare to common limit: 350 mg < 400 mg, so this example is below the general daily limit.

Frequently Asked Questions

What is a safe daily caffeine limit?

A commonly cited general limit for healthy adults is about 400 mg per day; individual tolerance and medical conditions can change that guideline.

Does body weight affect caffeine sensitivity?

Yes. Dividing total intake by body weight gives mg/kg, which helps standardize dose, but genetics and health also influence sensitivity.

Do I need to count all sources of caffeine?

Yes. Include coffee, tea, energy drinks, chocolate, and supplements when totaling your daily milligrams of caffeine.

Is this calculator appropriate for pregnant people?

Pregnant people should consult a healthcare provider; many guidelines recommend lower caffeine limits during pregnancy.