Earthquakes and typhoons don't wait. Build a personalized disaster kit sized to exactly your household — in minutes.
Japan is one of the most disaster-prone countries on earth. Official guidance recommends every household keep at least 3 days — ideally 7 — of supplies, because after a major earthquake, stores empty and deliveries stop.
This tool calculates exact quantities of water, food, and supplies for your family size, then gives you Amazon Japan search links so you can stock up in one sitting. Quantities follow guidance from the Cabinet Office (内閣府防災) and Tokyo's Bosai (防災) handbook.
Quantity guidance: Cabinet Office Japan (内閣府防災) and Tokyo Metropolitan Government "東京防災" handbook. Water at 3L drinking + 1L cooking/hygiene per person per day. Prices are rough Amazon.co.jp ranges and vary.
This is a planning aid, not official advice. Check your municipality's hazard map (ハザードマップ) for local flood and landslide risk, and locate your nearest evacuation site (避難所).