High Calorie Backpacking Food: Calories per Ounce, USDA Data
How we did this: every calorie figure comes from the US Department of Agriculture’s FoodData Central database, queried on 29 and 30 Sep 2026, converted from kcal per 100 g to kcal per ounce. Each row links to its USDA entry.
High calorie backpacking food is mostly fat. By USDA’s figures, olive oil carries about 251 kcal per ounce and nuts 160 to 213, against about 107 for oats and 79 for dates. A backpacking meal plan built from the table below reaches about 3,001 kcal in 22 oz of food, 136 kcal per ounce.
High calorie backpacking food, ranked by calories per ounce
| Food | kcal per 100 g | kcal per ounce | USDA entry |
|---|---|---|---|
| Olive oil | 884 | 251 | FDC 171413 |
| Pecans | 750 | 213 | FDC 2346395 |
| Macadamia nuts | 718 | 204 | FDC 170178 |
| Walnuts | 654 | 185 | FDC 170187 |
| Almonds | 626 | 177 | FDC 2346393 |
| Peanut butter | 598 | 170 | FDC 172470 |
| Dark chocolate (70-85%) | 598 | 170 | FDC 170273 |
| Cashews | 565 | 160 | FDC 2515374 |
| Corn chips | 539 | 153 | FDC 167537 |
| Whole milk powder | 496 | 141 | FDC 170876 |
| Ramen noodles, dry | 440 | 125 | FDC 171177 |
| Beef jerky | 410 | 116 | FDC 167536 |
| Cheddar cheese | 408 | 116 | FDC 328637 |
| Rolled oats | 379 | 107 | FDC 173904 |
| Instant potato flakes | 354 | 100 | FDC 170445 |
| Medjool dates | 277 | 79 | FDC 168191 |
Source: USDA FoodData Central (SR Legacy and Foundation Foods), linked by FDC ID. kcal per ounce = kcal per 100 g × 0.2835, our calculation.
How to use calories per ounce
- Find kcal per 100 g on the nutrition label or in FoodData Central.
- Multiply by 0.2835 to get kcal per ounce.
- Weigh your day, not each item. A menu of dense and less dense foods averages out; the day’s total calories divided by its total ounces is the number to track.
- Swap the lowest rows first. Replacing 2 oz of dates (about 158 kcal) with 2 oz of macadamia nuts (about 408 kcal) adds 250 kcal at the same weight.
A sample backpacking meal plan, by the numbers
| Meal | Food | Weight | kcal |
|---|---|---|---|
| Breakfast | Rolled oats | 3 oz | 321 |
| Breakfast | Whole milk powder | 1 oz | 141 |
| Lunch | Corn chips | 3 oz | 459 |
| Lunch | Cheddar cheese | 2 oz | 232 |
| Lunch | Beef jerky | 1 oz | 116 |
| Snacks | Macadamia nuts | 2 oz | 408 |
| Snacks | Dark chocolate (70-85%) | 2 oz | 340 |
| Snacks | Medjool dates | 2 oz | 158 |
| Dinner | Ramen noodles, dry | 3 oz | 375 |
| Dinner | Instant potato flakes | 2 oz | 200 |
| Dinner | Olive oil | 1 oz | 251 |
| Total | 22 oz (1.38 lb) | 3,001 kcal |
Built only from the USDA figures above. It is an example of the arithmetic, not a nutrition plan: it is high in fat by design, and your own needs and tastes decide the right menu.
Why fat wins on weight
Fat carries more energy per gram than carbohydrate or protein, which is why the top of the table is oil, nuts and chocolate, and why the dry carbohydrate staples (oats, potato flakes, ramen) sit near 100 to 125 kcal per ounce. Most menus mix both: carbohydrate staples for meals, fat-dense foods to raise the day’s average.
FAQ
What is the highest calorie backpacking food per ounce?
How do I work out calories per ounce?
How much does 1,000 kcal of food weigh?
How many calories do I need per day on trail?
Is peanut butter good backpacking food?
The bottom line
For high calorie backpacking food, look at kcal per ounce: olive oil (251), pecans and macadamias (over 200) and peanut butter or dark chocolate (about 170) raise a menu’s average; oats, ramen and potato flakes carry the meals at 100 to 125. Our USDA-built sample day comes to 3,001 kcal in 22 oz.
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