Field notes / Weight planning
Compare packing changes before buying gear
Use a snapshot to measure one change at a time, with trip length held constant.
Replacing equipment is not the only way a packing list changes. Removing a duplicate, changing a shared allocation or simply extending a trip can move the total. A comparison is easier to interpret when you know which of those things changed.
Keep a reference plan
Click Save snapshot before editing. The snapshot stays in the current tab and records the current items, trip days and units. It is not a second device-saved project. Download a JSON backup if you need a long-term reference.
Change one assumption
Imagine a 1,100 g backpack is replaced with an 850 g alternative. With quantities and trip days held constant, the departure pack drops 250 g. Now imagine you instead keep the original pack and add one extra day of 675 g consumables. That change outweighs the equipment saving. The comparison panel shows the departure totals and the signed difference.
Swap to inspect both lists
The Swap button exchanges the current list and the reference. You can inspect the item details on either side, then swap again. The Undo button can restore the previous current plan. Export the alternatives separately if you want both outside the tab.
Weight is one dimension
This product does not rate durability, weather suitability, fit, cost or safety. A lower number is not automatically a better packing decision. Keep notes explaining why an item exists, and evaluate any real equipment change against your actual trip requirements. There are no live product prices or affiliate shopping recommendations here.