Coffee Kick Calculator

Calculate caffeine timing and effects for optimal energy and sleep quality.

Caffeine Effects Guide

This calculator estimates caffeine effects based on scientific research and individual factors:

Caffeine Content by Type:

  • • Drip Coffee: 95 mg per 8 oz
  • • Espresso: 63 mg per 1 oz
  • • Americano: 95 mg per 8 oz
  • • Latte: 95 mg per 8 oz
  • • Cold Brew: 200 mg per 8 oz
  • • Instant Coffee: 95 mg per 8 oz

Caffeine Timeline:

  • 0-15 minutes: Absorption begins
  • 30-60 minutes: Peak effects
  • 3-5 hours: Half-life (50% remaining)
  • 6-8 hours: Mostly cleared from system

Factors Affecting Caffeine:

  • Body weight and metabolism
  • Regular caffeine consumption
  • Age and genetics
  • Food consumption
  • Medications and health conditions

Pro Tips

  • • Avoid caffeine 6 hours before bedtime
  • • Drink water to stay hydrated
  • • Don't exceed 400mg caffeine per day
  • • Take breaks to avoid tolerance buildup
  • • Listen to your body's signals
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