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A browser-based hiking food calorie & weight calculator tool. No data sent to server.

📘 How to Use

  1. Set your body weight and backpack weight using the sliders
  2. Enter the planned ascent and descent times for your trip
  3. Review the estimated total calories and required trail food
  4. Download your personalized trail food plan as a PNG image

Hiking Food Calorie & Weight Calculator

65 kg
10.0 kg
4.0 h
3.0 h

Trail Food Planner

Total Weight
75.0 kg
Ascent
4.0 h
Descent
3.0 h
Total Calories
0 kcal
Required Trail Food
0 kcal
Target Weight 0 - 0 g
※ Actual calories vary by individual, terrain, and temperature
Estimate based on METs. Trail food targets approx. 50% of total calories.

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Article

Hiking Food & Calorie Calculator｜Estimate Your Trail Nutrition Needs

This tool provides a quick and easy way for hikers and backpackers to estimate their calorie needs for a trip. Based on your weight, pack load, and hiking time, it calculates your total energy expenditure and recommends the amount of trail food to carry, helping you pack smarter and stay energized.

💡 Tool Overview

  • METs-Based Calculation: Estimates calorie burn using the Metabolic Equivalent of Task (METs) formula, a scientific standard for measuring activity intensity.
  • Personalized Estimates: Tailors the calculation to your specific body weight, pack weight, and the duration of your hike's ascent and descent.
  • Weight-Efficient Planning: Provides a target weight range (in grams) for your trail food, encouraging you to choose calorie-dense options and lighten your pack.
  • Visual & Downloadable Plan: Generates a clear, summary image of your nutrition plan that you can download and save to your phone for offline reference on the trail.

🧐 Frequently Asked Questions

Q. How accurate is this calculation?

A. This calculator provides a solid estimate based on established METs values for hiking. However, actual calorie expenditure can vary based on factors like steepness of the terrain, weather conditions, altitude, and your personal metabolism. Think of this result as a reliable starting point for your planning.

Q. Why is the "Required Trail Food" only 50% of the total calories burned?

A. During a hike, your body uses a combination of the food you eat and its own stored energy reserves (glycogen and fat). The goal of "action food" or trail snacks is to consistently replenish energy to avoid crashing, not to replace every single calorie as it's burned. Replenishing approximately 50% of burned calories is a common and effective strategy for maintaining performance during day hikes and backpacking trips.

Q. What do the target weight numbers (e.g., 400 - 500 g) mean?

A. This is the estimated total weight of the trail food you should pack to meet the recommended calorie target. The range is based on food with a calorie density of 4 kcal/gram (standard) to 5 kcal/gram (highly efficient). Choosing foods closer to 5 kcal/gram, like nuts or olive oil, will help you achieve your calorie goal with less weight.

📚 The Science of Trail Food: Calorie Density

A key concept in efficient backpacking is "calorie density"—the amount of energy (calories) a food provides relative to its weight. For hikers carrying everything on their back, foods with high calorie density are gold. They provide the maximum amount of energy for the minimum amount of weight. This calculator's "Target Weight" output is designed to help you think in these terms.

To meet the calorie target within the suggested weight range, focus on foods like nuts, seeds, dried fruit, jerky, cheese, and chocolate. Foods with high water content, like fresh apples or cucumbers, have a very low calorie density and are generally not efficient for backpacking. By prioritizing calorie-dense snacks, you can carry a lighter, smaller food bag without sacrificing the energy you need to conquer the trail.