{"updated": "2026-09-27", "version": "2026-09-27", "title": "家庭の備蓄の目安と今日の単価（人数×日数）", "how": "計算は GET /api/bichiku?adults=2&kids=1&days=7 か MCP の道具 bichiku。画面は /bichiku/", "sources": [{"name": "首相官邸 災害に対するご家庭での備え（飲料水 1人1日3リットル・非常食3日分）", "url": "https://www.kantei.go.jp/jp/headline/bousai/sonae.html"}, {"name": "農林水産省 災害時に備えた食品ストックガイド（最低3日〜1週間分×人数・ローリングストック）", "url": "https://www.maff.go.jp/j/zyukyu/foodstock/guidebook.html"}, {"name": "農林水産省 同ガイド 第7章 熱源（カセットボンベ 1人1週間 約6本）", "url": "https://www.maff.go.jp/j/zyukyu/foodstock/chapter07.html"}, {"name": "経済産業省 トイレ備蓄 忘れていませんか（1人35回分＝7日分）", "url": "https://www.meti.go.jp/policy/mono_info_service/mono/jyutaku/toirebichiku.html"}], "fetched": "2026-09-27", "license": "CC BY 4.0（この整理と数字）", "per_person": [{"key": "water", "name": "飲料水", "unit": "L", "per_day": 3, "per_week": null, "per_household": null, "basis": "首相官邸: 1人1日3リットル", "rotate_months": 6}, {"key": "staple", "name": "主食（米・パックご飯・麺）", "unit": "食", "per_day": 3, "per_week": null, "per_household": null, "basis": "仮置き: 1人1日3食（首相官邸の「非常食3日分」を食数に直した）", "rotate_months": 3}, {"key": "main", "name": "主菜（缶詰・レトルト）", "unit": "個", "per_day": 1.5, "per_week": null, "per_household": null, "basis": "仮置き: 1人1日1.5個（農水省の「たんぱく質は缶詰で」の考え方）", "rotate_months": 6}, {"key": "side", "name": "副菜（野菜ジュース・みそ汁・乾物）", "unit": "個", "per_day": 1, "per_week": null, "per_household": null, "basis": "仮置き: 1人1日1個（農水省の「ビタミン・食物繊維の野菜を常備」）", "rotate_months": 3}, {"key": "gas", "name": "カセットボンベ", "unit": "本", "per_day": null, "per_week": 6, "per_household": null, "basis": "農水省: 1人1週間あたり約6本", "rotate_months": 36}, {"key": "toilet", "name": "携帯トイレ", "unit": "回分", "per_day": 5, "per_week": null, "per_household": null, "basis": "経産省: 1人1日5回、7日で35回分", "rotate_months": 60}, {"key": "tp", "name": "トイレットペーパー", "unit": "ロール", "per_day": null, "per_week": 1, "per_household": null, "basis": "仮置き: 1人1週間1ロール", "rotate_months": 3}, {"key": "wet", "name": "除菌ウェットティッシュ", "unit": "枚", "per_day": 5, "per_week": null, "per_household": null, "basis": "仮置き: 1人1日5枚（水が使えない間の手や食器）", "rotate_months": 6}, {"key": "battery", "name": "乾電池（単3）", "unit": "本", "per_day": null, "per_week": null, "per_household": 8, "basis": "仮置き: 世帯で8本（懐中電灯・ラジオ）", "rotate_months": 24}], "prices_today": {"date": "2026-09-27", "water": {"median": 109.58, "unit_label": "1L", "name": "ミネラルウォーター（2L）", "date": "2026-09-27", "n": 68}, "pack-rice": {"median": 220.0, "unit_label": "1個", "name": "パックご飯", "date": "2026-09-27", "n": 48}, "rice": {"median": 598.0, "unit_label": "1kg", "name": "米（10kg）", "date": "2026-09-27", "n": 65}, "saba-can": {"median": 179.64, "unit_label": "100g", "name": "サバ缶（水煮）", "date": "2026-09-27", "n": 66}, "retort-curry": {"median": 451.5, "unit_label": "1個", "name": "レトルトカレー", "date": "2026-09-27", "n": 48}, "toilet-paper": {"median": 103.75, "unit_label": "1ロール", "name": "トイレットペーパー", "date": "2026-09-27", "n": 59}, "wet-tissue": {"median": 3.71, "unit_label": "1枚", "name": "除菌ウェットティッシュ", "date": "2026-09-27", "n": 33}, "battery-aa": {"median": 38.5, "unit_label": "1本", "name": "単3乾電池", "date": "2026-09-27", "n": 70}, "battery-d": {"median": 199.0, "unit_label": "1本", "name": "単1乾電池", "date": "2026-09-27", "n": 77}, "wrap": {"median": 11.45, "unit_label": "1m", "name": "食品用ラップ", "date": "2026-09-27", "n": 82}, "ors": {"median": 428.25, "unit_label": "1L", "name": "経口補水液", "date": "2026-09-27", "n": 55}}, "example_adults2_days7": {"version": "2026-09-27", "input": {"adults": 2, "kids": 0, "days": 7, "people": 2}, "items": [{"key": "water", "name": "飲料水", "qty": 42, "unit": "L", "basis": "首相官邸: 1人1日3リットル", "src": "kantei", "note": "2Lペットボトルなら 1人1日1.5本。長期保存水は5〜10年もつ", "price_slug": "water", "unit_price": 109.58, "unit_label": "1L", "cost": 4602, "shelf_months": 24, "rotate_months": 6, "rotate_text": "6か月ごとに食べて買い足す"}, {"key": "staple", "name": "主食（米・パックご飯・麺）", "qty": 42, "unit": "食", "basis": "仮置き: 1人1日3食（首相官邸の「非常食3日分」を食数に直した）", "src": "assume", "note": "米なら1食0.5合（75g）。パックご飯・アルファ米・乾麺で分ける", "price_slug": "pack-rice", "unit_price": 220, "unit_label": "1個", "cost": 9240, "shelf_months": 12, "rotate_months": 3, "rotate_text": "3か月ごとに食べて買い足す"}, {"key": "main", "name": "主菜（缶詰・レトルト）", "qty": 21, "unit": "個", "basis": "仮置き: 1人1日1.5個（農水省の「たんぱく質は缶詰で」の考え方）", "src": "maff3", "note": "サバ缶・ツナ缶・レトルトカレー・丼の素", "price_slug": "saba-can", "unit_price": 179.64, "unit_label": "100g", "cost": 1886, "shelf_months": 36, "rotate_months": 6, "rotate_text": "6か月ごとに食べて買い足す"}, {"key": "side", "name": "副菜（野菜ジュース・みそ汁・乾物）", "qty": 14, "unit": "個", "basis": "仮置き: 1人1日1個（農水省の「ビタミン・食物繊維の野菜を常備」）", "src": "maff3", "note": "野菜ジュース・インスタントみそ汁・切り干し大根・海苔", "price_slug": null, "unit_price": null, "unit_label": null, "cost": null, "shelf_months": 12, "rotate_months": 3, "rotate_text": "3か月ごとに食べて買い足す"}, {"key": "gas", "name": "カセットボンベ", "qty": 12, "unit": "本", "basis": "農水省: 1人1週間あたり約6本", "src": "maff7", "note": "ボンベの使用期限は約7年、コンロは約10年", "price_slug": null, "unit_price": null, "unit_label": null, "cost": null, "shelf_months": 84, "rotate_months": 36, "rotate_text": "3年ごとに入れ替え"}, {"key": "toilet", "name": "携帯トイレ", "qty": 70, "unit": "回分", "basis": "経産省: 1人1日5回、7日で35回分", "src": "meti", "note": "断水すると水洗トイレが使えない。凝固剤つきの袋", "price_slug": null, "unit_price": null, "unit_label": null, "cost": null, "shelf_months": 120, "rotate_months": 60, "rotate_text": "5年ごとに入れ替え"}, {"key": "tp", "name": "トイレットペーパー", "qty": 2, "unit": "ロール", "basis": "仮置き: 1人1週間1ロール", "src": "assume", "note": "普段の消費で回る", "price_slug": "toilet-paper", "unit_price": 103.75, "unit_label": "1ロール", "cost": 208, "shelf_months": 999, "rotate_months": 3, "rotate_text": "3か月ごとに食べて買い足す"}, {"key": "wet", "name": "除菌ウェットティッシュ", "qty": 70, "unit": "枚", "basis": "仮置き: 1人1日5枚（水が使えない間の手や食器）", "src": "assume", "note": "", "price_slug": "wet-tissue", "unit_price": 3.71, "unit_label": "1枚", "cost": 260, "shelf_months": 24, "rotate_months": 6, "rotate_text": "6か月ごとに食べて買い足す"}, {"key": "battery", "name": "乾電池（単3）", "qty": 8, "unit": "本", "basis": "仮置き: 世帯で8本（懐中電灯・ラジオ）", "src": "assume", "note": "使う機器の電池の種類に合わせる", "price_slug": "battery-aa", "unit_price": 38.5, "unit_label": "1本", "cost": 308, "shelf_months": 120, "rotate_months": 24, "rotate_text": "2年ごとに入れ替え"}], "cost_total": 16504, "cost_items": 6, "note": "数量は首相官邸・農水省・経産省の目安と、この道具の仮置き（主食3食/日・主菜1.5個/日など）。値段は暮らしグラムが楽天市場の売れ筋を単位あたりに直した中央値で、日々変わる。値段が付いているのは 6 項目だけで、総額は下限の目安"}, "grid": [[{"a": 1, "k": 0, "dd": 3, "water": 9, "total": 3883, "gas": 3, "toilet": 15}, {"a": 1, "k": 0, "dd": 7, "water": 21, "total": 8451, "gas": 6, "toilet": 35}, {"a": 1, "k": 0, "dd": 14, "water": 42, "total": 16504, "gas": 12, "toilet": 70}], [{"a": 2, "k": 0, "dd": 3, "water": 18, "total": 7263, "gas": 6, "toilet": 30}, {"a": 2, "k": 0, "dd": 7, "water": 42, "total": 16504, "gas": 12, "toilet": 70}, {"a": 2, "k": 0, "dd": 14, "water": 84, "total": 32699, "gas": 24, "toilet": 140}], [{"a": 2, "k": 1, "dd": 3, "water": 27, "total": 10295, "gas": 7, "toilet": 41}, {"a": 2, "k": 1, "dd": 7, "water": 63, "total": 23020, "gas": 17, "toilet": 95}, {"a": 2, "k": 1, "dd": 14, "water": 126, "total": 45639, "gas": 33, "toilet": 189}], [{"a": 2, "k": 2, "dd": 3, "water": 36, "total": 12907, "gas": 9, "toilet": 51}, {"a": 2, "k": 2, "dd": 7, "water": 84, "total": 29443, "gas": 21, "toilet": 119}, {"a": 2, "k": 2, "dd": 14, "water": 168, "total": 58253, "gas": 41, "toilet": 238}], [{"a": 4, "k": 0, "dd": 3, "water": 36, "total": 14221, "gas": 11, "toilet": 60}, {"a": 4, "k": 0, "dd": 7, "water": 84, "total": 32699, "gas": 24, "toilet": 140}, {"a": 4, "k": 0, "dd": 14, "water": 168, "total": 65091, "gas": 48, "toilet": 280}]], "note": "主食3食/日・主菜1.5個/日・副菜1個/日・紙と電池はこの道具の仮置き。値段は楽天の売れ筋の単位あたり中央値で日々変わる"}