Cache size

Geocaches come in all shapes and sizes. The popular designations for cache sizes are:

• Nano
• Micro
• Small
• Regular
• Large
• Other

Cache Sizes (From Geocaching.com)

• Nano (Pencil Eraser size or smaller – less than approximately .01 litres (10 millilitres) -- typically containing only a small scroll of paper as a logbook)
• Micro (35 mm film canister or smaller – less than approximately 3 ounces or .1 litres -- typically containing only a logbook)
• Small (Sandwich-sized Tupperware-style container or similar -- less than approximately 1 quart or litre -- holds trade items as well as a logbook)
• Regular (Tupperware-style container or ammo can)
• Large (5 gallon/20 litre bucket or larger)

Caches Sizes as proposed:

• Nano - less than 10ml (tiny container which just holds a strip of paper)
• Micro - between 10ml and 100ml (approximately a 35 mm film canister or tiny storage box typically containing only a logbook or a logsheet)
• Small - between 100ml and 1L (sandwich-sized plastic container or similar – holds trade items as well as a logbook)
• Regular - between 1L and 20L (plastic container or ammo can about the size of a shoebox)
• Large more than 20L (81mm mortar ammo can or a big bucket)