Camping Food Calculator
Calculate food weight and calorie targets for any camping trip based on trip length, group size, and activity level.
Running out of food on a backpacking trip is miserable. Carrying too much is just heavy. Getting the estimate right before you pack is one of the highest-value prep steps for any multi-day trip. I've made both mistakes.
Backpackers typically target 1.5-2 lbs of food per person per day for calorie-dense packaged food. Car campers average 3-4 lbs per person per day when including fresh items with higher water content.
Calorie needs in the backcountry
Physical activity significantly elevates calorie needs beyond normal daily requirements. A moderately active backpacker (8-12 miles/day with a 25-35 lb pack) typically needs 2,800-3,500 calories per day, versus a normal sedentary adult's 2,000-2,200. Cold weather adds another 10-25% on top of that as the body works harder to maintain core temperature. Most hikers underestimate this, which is why the afternoon energy crash is so common on day two.
Backpacking food weight targets
The standard backpacking target is 1.5-2 lbs of food per person per day (including packaging). Freeze-dried meals, energy bars, nuts, and dehydrated foods hit this target well. Fresh foods like apples and sandwiches are significantly heavier per calorie because of water content, which is why they work for car camping or day one of a backpacking trip but not for multi-day carry.
Water planning
Drinking water needs depend heavily on exertion, temperature, and altitude. The 2L/person/day figure is a minimum for moderate conditions. Hot weather or strenuous activity can push this to 4-6L/day. Always plan around available water sources on your route. A quality filter (Sawyer, Katadyn, SteriPen) allows you to drink from natural sources rather than carrying all water weight from the trailhead.
Frequently asked questions
What are the most calorie-dense backpacking foods?
Nuts and nut butters (160-200 cal/oz), olive oil (240 cal/oz), dark chocolate (150-160 cal/oz), cheese (110-130 cal/oz), and salami (110-130 cal/oz) are the most calorie-dense options. Freeze-dried meals average 100-130 cal/oz. Instant oatmeal and ramen are light and calorie-reasonable but less dense than fat-heavy options.
How do I keep food weight down?
Repackage bulk items into lighter containers or bags, remove excess packaging before you leave home, choose oils and fats over carbohydrates for calorie density per ounce, and plan meals specifically rather than bringing a general supply. Knowing exactly what you're eating each day eliminates overpacking significantly.