Why does weight distribution matter?

Proper weight distribution keeps your centre of gravity aligned over your hips, reducing fatigue and strain. Poor distribution causes back pain, shoulder strain and instability on uneven ground. A well-packed bag feels lighter than a poorly packed one of the same weight.

Where should heavy items go?

On flat trails, pack heavy items high and close to your back (top-middle zone). On technical terrain or scrambles, lower the heavy items to the middle-bottom zone for better balance. Always pack heavy items close to your spine, never at the back of the pack away from your body.

How much weight should the hip belt carry?

A properly fitted hip belt should transfer 60–70% of pack weight to your hips. Your shoulders carry the remaining 30–40%. If your shoulders are bearing most of the weight, adjust the hip belt tighter and higher on your hip bones.

What goes in each zone?

Bottom zone: sleeping bag, camp shoes. Middle zone: heavy items (food, water, stove, fuel). Top zone: rain gear, snacks, first aid, map — items you need quick access to. Side pockets: water bottles, tent poles, snacks.

CampCalcs

Pack Weight Distribution Calculator

Optimise how weight is distributed in your backpack for comfort and stability.

Total Pack Weight

Total loaded pack weight

Terrain Type

Type of terrain or ground

Pack Style

Enter the pack style

How We Calculate This

Weight Zones

The pack is divided into three zones: Top (lid and upper main compartment), Middle (core main compartment), and Bottom (sleeping bag compartment).

Terrain Adjustment

Trail hiking favours a higher centre of gravity (more weight up top). Technical terrain favours a lower centre of gravity (more weight in the middle and bottom) for stability.

Hip belt transfer determines how much load is carried by your hips versus shoulders.

Frequently Asked Questions

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Last updated: 2026-03-03

All calculations are estimates. Always verify conditions and use proper safety equipment outdoors.