If you've spent any time in backpacking forums or gear communities, you've seen people argue passionately about ounces. The whole conversation usually centers on one number: base weight.
Understanding base weight is the fastest way to start making smarter gear decisions — whether you're trying to go ultralight or just stop arriving at camp with a sore back.
What Is Base Weight?
Base weight is the total weight of your pack excluding consumables — meaning no food, water, or fuel. It's the stuff you carry on every trip, regardless of distance or conditions.
Your base weight typically includes:
- Backpack
- Shelter (tent, tarp, or bivy)
- Sleeping bag or quilt
- Sleeping pad
- Clothing layers
- Rain gear
- Navigation (map, compass, GPS)
- First aid and repair kit
- Headlamp and batteries
- Cook system (stove, pot, utensils)
What it doesn't include: food, water, water filter (debated), fuel, and any trip-specific consumables.
How to Calculate It
The process is simple:
- Weigh every item in your kit using a kitchen scale or luggage scale
- Log each item with its actual weight (not the spec sheet weight — manufacturers often list weights without stuff sacks, straps, or packaging)
- Add them all up
The result is your base weight.
A tool like MyPacks makes this easy — you can build a gear list, assign weights to each item, and see your base weight update in real time as you add or swap gear. It also lets you compare loadouts across trips, which is where the real optimization happens.
The Base Weight Benchmarks
The backpacking community has settled on rough benchmarks that help you contextualize where you land:
| Category | Base Weight |
|---|---|
| Traditional | Over 20 lbs (9 kg) |
| Lightweight | Under 20 lbs (9 kg) |
| Ultralight | Under 10 lbs (4.5 kg) |
| Super Ultralight | Under 5 lbs (2.3 kg) |
Most weekend backpackers with standard gear land somewhere in the traditional to lightweight range. Getting under 10 lbs typically requires intentional gear selection and a willingness to spend more on lighter materials.
Why Does It Matter?
Lighter packs mean:
- Less fatigue — you arrive at camp with more energy
- Faster miles — you can cover more ground on the same effort
- Fewer injuries — knee and hip stress drops significantly with less load
- More enjoyment — you're thinking about the trail, not your shoulders
Research from the US Army found that pack weight has a near-linear relationship with energy expenditure. Every pound you shed has a real, measurable impact on how hard your body has to work.
What Moves the Needle Most
If you want to reduce your base weight, focus on the "Big Three" first — shelter, sleep system, and pack. These three categories account for 60–70% of most hikers' base weight. Optimizing a headlamp from 3 oz to 2 oz won't change much; swapping a 5 lb tent for a 2 lb shelter will.
Common swaps that cut significant weight:
- Tent → Tarp or single-wall shelter: saves 1–3 lbs
- Sleeping bag → quilt: saves 8–16 oz for equivalent warmth
- Internal frame pack → ultralight frameless: saves 1–3 lbs
- Heavy boots → trail runners: saves 1–2 lbs (worn, not carried)
Tracking Your Progress
The most useful thing you can do is log your kit and track it over time. When you get back from a trip, note what you didn't use — that's your cut list for next time. When something breaks or wears out, replace it with the lightest option that meets your needs.
A gear management app like MyPacks lets you maintain multiple lists — a summer kit, a winter kit, a fastpacking setup — so you can see exactly how your base weight changes across configurations and conditions.
Base weight isn't everything. Comfort, safety, and conditions matter. But knowing your number gives you a starting point for every gear decision you make.