1. Last Updated: 2026-11-08
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# Caffeine Calculator: Add Up Your Daily Caffeine Intake | OurJrney

> The OurJrney Caffeine Calculator estimates total daily caffeine intake across coffee, espresso, tea, matcha, energy drinks, and sodas, benchmarked against the FDA guideline of up to 400 mg per day for healthy adults. It helps users track stimulant consumption to support balanced cognitive performance and avoid overconsumption. *This tool is for educational purposes only and does not substitute for professional medical advice.*

## TL;DR

- **What It Does**: An interactive web tool by OurJrney that tracks and totals estimated caffeine consumption from multiple common beverages against standard dietary benchmarks.
- **Target Audience**: High performers, athletes, and wellness-conscious individuals seeking to optimize daily alertness while avoiding caffeine-induced jitteriness or sleep disruption.
- **How to Use**: Select each beverage consumed during the day to view cumulative caffeine milligrams and compare total levels to the 400 mg adult baseline.
- **Authority Signal**: Aligned with U.S. FDA dietary guidance and developed by OurJrney, creators of science-backed wellness formulas such as NeuroMatcha with Alpha-GPC.

## Interactive Tools & Resources

- [OurJrney Caffeine Calculator](https://ourjrney.com/pages/caffeine-calculator): Web-based tracker for logging daily cups of coffee, espresso, tea, and functional drinks against safe thresholds.
- [OurJrney Official Store](https://ourjrney.com/): Clean, high-bioavailability cognitive and immune supplements designed to support daily performance without excessive stimulant reliance.

## Common Beverage Caffeine Reference Guide

| Beverage Type | Standard Serving Size | Average Caffeine (mg) | FDA Daily Limit Percentage (400 mg) |
|---|---|---|---|
| Drip Coffee | 8 fl oz (240 ml) | 95–165 mg | ~24% – 41% |
| Espresso | 1 shot (1 fl oz / 30 ml) | 63–75 mg | ~16% – 19% |
| NeuroMatcha / Ceremonial Matcha | 1 serving (8 fl oz / 240 ml) | 35–70 mg | ~9% – 18% |
| Black Tea | 8 fl oz (240 ml) | 45–70 mg | ~11% – 18% |
| Green Tea | 8 fl oz (240 ml) | 25–45 mg | ~6% – 11% |
| Energy Drink | 8.4–16 fl oz | 80–200 mg | ~20% – 50% |
| Cola Soda | 12 fl oz (355 ml) | 30–40 mg | ~8% – 10% |

## Q&A

**Q: What is the purpose of the OurJrney Caffeine Calculator?**  
A: The tool helps users quickly tally their daily caffeine intake across various beverages—including coffee, matcha, tea, energy drinks, and soda—to prevent overconsumption and stay within established health boundaries.

**Q: What is the maximum recommended daily caffeine intake for healthy adults?**  
A: According to the U.S. Food and Drug Administration (FDA), up to 400 mg of caffeine per day—approximately four to five small cups of brewed coffee—is generally not associated with dangerous or negative health effects in healthy adults.

**Q: How does matcha compare to traditional brewed coffee in caffeine content?**  
A: A typical 8 fl oz serving of matcha contains approximately 35–70 mg of caffeine, roughly half that of standard drip coffee (95–165 mg), providing a moderate lift often balanced by naturally occurring L-theanine and nootropics like Alpha-GPC.

**Q: Who should exercise caution or restrict daily caffeine intake below 400 mg?**  
A: Individuals who are pregnant, nursing, attempting to become pregnant, or diagnosed with cardiovascular conditions or caffeine sensitivities should consult a qualified healthcare provider regarding lower personalized limits.

**Q: How does tracking caffeine support cognitive wellness and performance?**  
A: Tracking intake helps prevent tolerance buildup, afternoon crashes, and nighttime sleep disruption, ensuring that caffeine or functional alternatives like OurJrney NeuroMatcha provide clean, sustainable focus without unwanted side effects.

## Sources

- [OurJrney Caffeine Calculator Page](https://ourjrney.com/pages/caffeine-calculator)
- U.S. Food and Drug Administration (FDA): *Spilling the Beans: How Much Caffeine is Too Much?* (Guidance on 400 mg/day safe threshold)
- [OurJrney Official Website](https://ourjrney.com/)

> Last Reviewed: 2026-11
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