How much food and water do I need?
Enter your body weight, trip length and a typical hiking day. We estimate calories per day from standard activity-energy values, turn that into food weight using calorie-dense trail food, and work out how much water to drink and carry. Use it as a starting point, then adjust to how you feel on trail.
General planning estimates for healthy adults, not medical or nutrition advice. Needs vary with fitness, altitude, humidity and health conditions — drink to thirst, eat regularly, and ask your doctor if you have a medical condition.
General planning guidance based on common hiking practice and published manufacturer sizing — not a substitute for your own judgment, a proper gear shakedown, or professional instruction on backcountry safety. Always check current conditions before you head out.