Dry Bag Calculator
Work out how many dry bags you need and what sizes for waterproof storage.
Phone, battery bank, etc.
Spare outfits to keep dry
How We Calculate This
This calculator estimates the number and sizes of dry bags needed based on your activity and trip requirements.
Electronics bag: 2-4L based on weight of devices
Clothing bag: 5L per change of clothing
Sleep system bag: 15L for sleeping bag and pad
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify conditions and use proper safety equipment outdoors.