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拠出金計算機","blurb":"年間拠出額、雇用主のマッチング、税金節約、退職時の予測残高。","slug":"401k-contribution","formula_key":"401k-contribution","cat":"finance","url":"/ja/finance/investment/401k-contribution/"},{"id":42,"name":"72の法則","blurb":"投資が年率から2倍になるまでの時間。","slug":"rule-of-72","formula_key":"rule-of-72","cat":"finance","url":"/ja/finance/investment/rule-of-72/"},{"id":60,"name":"ROI計算機","blurb":"投資の総収益率（％）、利益、および年平均成長率（CAGR）。","slug":"roi-calculator","formula_key":"roi-calculator","cat":"finance","url":"/ja/finance/investment/roi-calculator/"},{"id":133,"name":"Roth IRA vs Traditional IRA計算機","blurb":"税引き後退職価値：Roth（税引き後拠出、非課税引き出し） vs Traditional（税引き前拠出、課税引き出し）。","slug":"roth-vs-traditional-ira","formula_key":"roth-vs-traditional-ira","cat":"finance","url":"/ja/finance/investment/roth-vs-traditional-ira/"},{"id":68,"name":"インフレ計算機","blurb":"金額の購買力が年々どのように変化するか — 過去と未来。","slug":"inflation-calculator","formula_key":"inflation-calculator","cat":"finance","url":"/ja/finance/investment/inflation-calculator/"},{"id":59,"name":"単純利息計算機","blurb":"利息 = P・r・t — 古典的な非複利計算式です。","slug":"simple-interest","formula_key":"simple-interest","cat":"finance","url":"/ja/finance/investment/simple-interest/"},{"id":87,"name":"年金計算機","blurb":"通常または即時の定期貯蓄年金の将来価値、実効利回り付き。","slug":"annuity-calculator","formula_key":"annuity-calculator","cat":"finance","url":"/ja/finance/investment/annuity-calculator/"},{"id":4,"name":"複利計算","blurb":"定期貯蓄の長期的な成長。","slug":"compound-interest","formula_key":"compound","cat":"finance","url":"/ja/finance/investment/compound-interest/"},{"id":58,"name":"貯蓄目標計算機","blurb":"貯蓄目標達成に必要な月額積立額を計算します。","slug":"savings-goal","formula_key":"savings-goal","cat":"finance","url":"/ja/finance/investment/savings-goal/"},{"id":66,"name":"退職金計算機","blurb":"現在の貯蓄、拠出、予想リターンから将来の貯蓄額を予測します。","slug":"retirement-calculator","formula_key":"retirement-calculator","cat":"finance","url":"/ja/finance/investment/retirement-calculator/"},{"id":127,"name":"定期保険 vs 終身保険計算機","blurb":"定期保険を買って差額を投資する vs 終身保険の現金価値を予定期間で比較。","slug":"term-vs-whole-life","formula_key":"term-vs-whole-life","cat":"finance","url":"/ja/finance/insurance/term-vs-whole-life/"},{"id":126,"name":"生命保険必要額計算機","blurb":"DIME法 — 負債 + 収入 × 年数 + 住宅ローン + 教育費、既存の補償額を差し引く。","slug":"life-insurance-needs","formula_key":"life-insurance-needs","cat":"finance","url":"/ja/finance/insurance/life-insurance-needs/"},{"id":2,"name":"BMI計算機","blurb":"身長と体重からボディマス指数を計算します。","slug":"bmi-calculator","formula_key":"bmi","cat":"health","url":"/ja/health/bmi/bmi-calculator/"},{"id":63,"name":"理想体重計算機","blurb":"Devine、Robinson、Miller、Hamwiの計算式と健康BMI範囲。","slug":"ideal-weight","formula_key":"ideal-weight","cat":"health","url":"/ja/health/bmi/ideal-weight/"},{"id":108,"name":"1日あたりのタンパク質摂取量計算機","blurb":"目標、体重、年齢に応じた1日あたりの推奨タンパク質摂取量。","slug":"protein-intake","formula_key":"protein-intake","cat":"health","url":"/ja/health/calorie/protein-intake/"},{"id":45,"name":"1日の水分摂取量","blurb":"体重、活動量、気候に合わせて調整された1日の水分摂取目標量。","slug":"water-intake","formula_key":"water-intake","cat":"health","url":"/ja/health/calorie/water-intake/"},{"id":9,"name":"カロリー必要量（BMR & TDEE）","blurb":"Mifflin-St Jeor BMR + 活動乗数。メートル法またはインペリアル。","slug":"calorie-needs","formula_key":"calorie-needs","cat":"health","url":"/ja/health/calorie/calorie-needs/"},{"id":40,"name":"主要栄養素の分配（タンパク質/脂肪/炭水化物）","blurb":"TDEEと目標に基づく、1日のタンパク質、脂肪、炭水化物のグラム数。","slug":"macros-calculator","formula_key":"macros-calculator","cat":"health","url":"/ja/health/calorie/macros-calculator/"},{"id":41,"name":"減量スケジュール計算機","blurb":"指定された1日のカロリー不足で目標体重に到達する日付を予測します。","slug":"weight-loss-timeline","formula_key":"weight-loss-timeline","cat":"health","url":"/ja/health/calorie/weight-loss-timeline/"},{"id":70,"name":"血中アルコール濃度（BAC）計算機","blurb":"Widmarkの計算式を使用して血中アルコール濃度を推定します。","slug":"bac-calculator","formula_key":"bac-calculator","cat":"health","url":"/ja/health/calorie/bac-calculator/"},{"id":10,"name":"出産予定日計算機","blurb":"LMP、受精日、または超音波検査から出産予定日と現在の妊娠週数を推定します。","slug":"pregnancy-due-date","formula_key":"pregnancy-due-date","cat":"health","url":"/ja/health/pregnancy/pregnancy-due-date/"},{"id":62,"name":"排卵計算機","blurb":"月経周期の長さから排卵日と受胎可能期間を推定します。","slug":"ovulation-calculator","formula_key":"ovulation-calculator","cat":"health","url":"/ja/health/pregnancy/ovulation-calculator/"},{"id":72,"name":"月経周期計算機","blurb":"次の月経、排卵日、妊娠可能期間を予測します。","slug":"menstrual-cycle","formula_key":"menstrual-cycle","cat":"health","url":"/ja/health/pregnancy/menstrual-cycle/"},{"id":37,"name":"睡眠サイクル計算機","blurb":"90分サイクルに合わせた就寝時間（または起床時間）。","slug":"sleep-cycles","formula_key":"sleep-cycles","cat":"health","url":"/ja/health/sleep/sleep-cycles/"},{"id":88,"name":"ウエスト・ヒップ比 (WHR)","blurb":"性別ごとのWHOバンドとゲージを備えたボディシェイプのリスク指標。","slug":"waist-to-hip-ratio","formula_key":"waist-to-hip-ratio","cat":"health","url":"/ja/health/body-composition/waist-to-hip-ratio/"},{"id":38,"name":"体脂肪率（米国海軍式）","blurb":"周長から体脂肪率を推定します。メートル法またはインペリアル法。","slug":"body-fat-percentage","formula_key":"body-fat-percentage","cat":"health","url":"/ja/health/body-composition/body-fat-percentage/"},{"id":71,"name":"除脂肪体重計算機","blurb":"3つの独立した計算式（Boer、James、Hume）による除脂肪体重。","slug":"lean-body-mass","formula_key":"lean-body-mass","cat":"health","url":"/ja/health/body-composition/lean-body-mass/"},{"id":39,"name":"目標心拍数ゾーン","blurb":"年齢と安静時心拍数に基づく5ゾーントレーニングプラン。","slug":"target-heart-rate","formula_key":"target-heart-rate","cat":"health","url":"/ja/health/heart-rate/target-heart-rate/"},{"id":5,"name":"パーセント計算機","blurb":"パーセント、増加、割引。","slug":"percentage","formula_key":"percentage","cat":"math","url":"/ja/math/percentage/percentage/"},{"id":74,"name":"分数計算機","blurb":"2つの分数を加算、減算、乗算、または除算し、単純化します。","slug":"fraction-calculator","formula_key":"fraction-calculator","cat":"math","url":"/ja/math/percentage/fraction-calculator/"},{"id":56,"name":"割引計算機","blurb":"パーセントまたは定額割引後のセール価格（オプションの税金付き）。","slug":"discount-calculator","formula_key":"discount-calculator","cat":"math","url":"/ja/math/percentage/discount-calculator/"},{"id":123,"name":"比率計算機 (A:B = C:D)","blurb":"GCD単純化とデュアルプロポーションバーを備えた比例式で、A、B、C、Dのいずれかを解きます。","slug":"ratio-calculator","formula_key":"ratio-calculator","cat":"math","url":"/ja/math/percentage/ratio-calculator/"},{"id":75,"name":"三角形ソルバー","blurb":"3辺から三角形の角度、面積、高さ、半径を計算します。","slug":"triangle-solver","formula_key":"triangle-solver","cat":"math","url":"/ja/math/triangle/triangle-solver/"},{"id":98,"name":"直角三角形計算機","blurb":"ピタゴラスの定理とSOHCAHTOAによる辺、角度、面積、斜辺の計算。","slug":"right-triangle","formula_key":"right-triangle","cat":"math","url":"/ja/math/triangle/right-triangle/"},{"id":136,"name":"グラフ描画電卓","blurb":"最大3つの実数関数 f(x), g(x), h(x) をリアルタイムでプロット。値の表、ドラッグによるパン、スクロールによるズーム、DEG/RAD切り替え、科学電卓と同じパーサーを搭載。","slug":"graphing-calculator","formula_key":"graphing-calculator","cat":"math","url":"/ja/math/arithmetic/graphing-calculator/"},{"id":137,"name":"二次方程式ソルバー","blurb":"ax² + bx + c = 0 を解きます — 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力、質量、または加速度をSI/インペリアル単位切り替えで解く。","slug":"newtons-force","formula_key":"newtons-force","cat":"physics","url":"/ja/physics/force/newtons-force/"},{"id":6,"name":"オームの法則","blurb":"電圧、電流、抵抗。","slug":"ohms-law","formula_key":"ohms-law","cat":"physics","url":"/ja/physics/energy/ohms-law/"},{"id":90,"name":"単振り子周期計算機","blurb":"単純振り子の周期と振動数（地球または他の惑星上）、振幅補正付き。","slug":"pendulum-period","formula_key":"pendulum-period","cat":"physics","url":"/ja/physics/energy/pendulum-period/"},{"id":76,"name":"運動エネルギー計算機","blurb":"KE = 1/2 m v2 - 複数の単位オプションを持つ移動物体の運動エネルギー。","slug":"kinetic-energy","formula_key":"kinetic-energy","cat":"physics","url":"/ja/physics/energy/kinetic-energy/"},{"id":107,"name":"重力ポテンシャルエネルギー","blurb":"PE = m·g·h、惑星セレクターと単位換算機能付き。","slug":"potential-energy","formula_key":"potential-energy","cat":"physics","url":"/ja/physics/energy/potential-energy/"},{"id":117,"name":"放物運動計算機","blurb":"到達距離、最高到達点、滞空時間、衝突速度と角度、完全なSVG軌跡付き。","slug":"projectile-motion","formula_key":"projectile-motion","cat":"physics","url":"/ja/physics/velocity/projectile-motion/"},{"id":14,"name":"速度計算機","blurb":"v = d/t — 速度、距離、または時間を多単位出力で解く。","slug":"velocity","formula_key":"velocity","cat":"physics","url":"/ja/physics/velocity/velocity/"},{"id":15,"name":"モル濃度計算機","blurb":"質量、モル質量、体積からのモル濃度。","slug":"molarity","formula_key":"molarity","cat":"chemistry","url":"/ja/chemistry/molarity/molarity/"},{"id":91,"name":"モル質量計算機","blurb":"化学式（括弧や水和物を含む）を解析し、モル質量と元素ごとの内訳を返します。","slug":"molar-mass","formula_key":"molar-mass","cat":"chemistry","url":"/ja/chemistry/molarity/molar-mass/"},{"id":77,"name":"pH計算機","blurb":"H+濃度からpHを計算 - 強酸および弱酸モード。","slug":"ph-calculator","formula_key":"ph-calculator","cat":"chemistry","url":"/ja/chemistry/ph/ph-calculator/"},{"id":78,"name":"希釈計算機","blurb":"C1*V1 = C2*V2 - 4つの希釈変数のいずれかを解きます。","slug":"dilution-calculator","formula_key":"dilution-calculator","cat":"chemistry","url":"/ja/chemistry/dilution/dilution-calculator/"},{"id":111,"name":"質量パーセント濃度（% 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2001年の体感温度式（凍傷リスク帯付き）。","slug":"wind-chill","formula_key":"wind-chill","cat":"conversion","url":"/ja/conversion/temperature/wind-chill/"},{"id":24,"name":"温度変換器","blurb":"摂氏、華氏、ケルビン、ランキン度を相互に変換します。","slug":"temperature-converter","formula_key":"temperature-converter","cat":"conversion","url":"/ja/conversion/temperature/temperature-converter/"},{"id":101,"name":"VO2max（最大酸素摂取量）計算機（クーパーテスト）","blurb":"12分間走の距離からVO2max（最大酸素摂取量）を推定し、心肺機能を評価します。","slug":"vo2-max","formula_key":"vo2-max","cat":"sports","url":"/ja/sports/running-pace/vo2-max/"},{"id":94,"name":"マラソンタイム予測","blurb":"既知のレース結果から任意の距離のフィニッシュタイムを予測するRiegel式。","slug":"marathon-predictor","formula_key":"marathon-predictor","cat":"sports","url":"/ja/sports/running-pace/marathon-predictor/"},{"id":25,"name":"ランニングペース","blurb":"どんなランニングでもペース、スピード、予測ゴールタイムを計算。","slug":"running-pace","formula_key":"running-pace","cat":"sports","url":"/ja/sports/running-pace/running-pace/"},{"id":73,"name":"消費カロリー計算機","blurb":"Compendium of Physical ActivitiesのMET値を使用した、活動ごとの消費カロリー。","slug":"calories-burned","formula_key":"calories-burned","cat":"sports","url":"/ja/sports/running-pace/calories-burned/"},{"id":61,"name":"1レップマックス計算機","blurb":"5つの古典的な公式を使用して、テストされたレップマックスから1RMを推定します。","slug":"one-rep-max","formula_key":"one-rep-max","cat":"sports","url":"/ja/sports/one-rm/one-rep-max/"},{"id":106,"name":"サイクリングパワー計算機","blurb":"特定の速度で走行するために必要なワット数を、勾配と風を考慮して算出します。","slug":"cycling-power","formula_key":"cycling-power","cat":"sports","url":"/ja/sports/cycling/cycling-power/"},{"id":89,"name":"ピザ生地計算機","blurb":"パン屋のパーセント計算で、ピザの枚数、加水率、酵母タイプに応じたピザ生地を計算。","slug":"pizza-dough","formula_key":"pizza-dough","cat":"food","url":"/ja/food-cooking/recipe/pizza-dough/"},{"id":27,"name":"レシピ 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30%、フランス*barème*、米国短期/長期 — 手取り額と実効税率。","slug":"capital-gains-tax","formula_key":"capital-gains-tax","cat":"tax","url":"/ja/tax/capital-gains/capital-gains-tax/"},{"id":113,"name":"固定資産税計算機","blurb":"課税標準額 → 控除額 → 課税対象額 → ミル税率で年間の固定資産税額を計算します。","slug":"property-tax","formula_key":"property-tax","cat":"tax","url":"/ja/tax/property-tax/property-tax/"},{"id":32,"name":"燃料費計算機","blurb":"走行距離×燃費×ポンプ価格で、旅の燃料と費用を計算します。","slug":"fuel-cost","formula_key":"fuel-cost","cat":"auto","url":"/ja/auto/fuel/fuel-cost/"},{"id":114,"name":"自動車リース計算機","blurb":"減価償却費 + 融資 + 税金の月額構成、マネーファクターからAPRへの変換。","slug":"car-lease","formula_key":"car-lease","cat":"auto","url":"/ja/auto/lease/car-lease/"},{"id":115,"name":"EV航続距離計算機","blurb":"バッテリー+速度/温度/SoC係数による実走行距離と規定値対実走行距離ゲージ。","slug":"ev-range","formula_key":"ev-range","cat":"auto","url":"/ja/auto/ev-range/ev-range/"},{"id":116,"name":"ロードトリップ費用計算機","blurb":"燃料 + 通行料金 + 宿泊費 + 食費 + 雑費 — 総費用と一人あたりの内訳。","slug":"road-trip-cost","formula_key":"road-trip-cost","cat":"auto","url":"/ja/auto/road-trip/road-trip-cost/"},{"id":129,"name":"自動車保険免責額計算機","blurb":"免責額の増減 — 損益分岐点、年間の予想貯蓄額、および将来の見通し。","slug":"auto-insurance-deductible","formula_key":"auto-insurance-deductible","cat":"auto","url":"/ja/auto/insurance/auto-insurance-deductible/"},{"id":128,"name":"自動車保険料計算機","blurb":"ドライバー、車種、事故歴、走行距離、保険内容、地域 → 年間保険料推定値。","slug":"auto-insurance-premium","formula_key":"auto-insurance-premium","cat":"auto","url":"/ja/auto/insurance/auto-insurance-premium/"},{"id":118,"name":"期末試験の必要成績","blurb":"目標総合成績を達成するために必要な期末試験の成績、努力度ゲージ付き。","slug":"grade-needed","formula_key":"grade-needed","cat":"education","url":"/ja/education/grade/grade-needed/"},{"id":46,"name":"GPA計算機（4.0スケール）","blurb":"文字グレードと単位数から米国スタイルのGPAを計算します。","slug":"gpa-calculator","formula_key":"gpa-calculator","cat":"education","url":"/ja/education/gpa/gpa-calculator/"},{"id":33,"name":"加重成績平均","blurb":"係数による複数科目の加重平均。","slug":"weighted-grade-average","formula_key":"weighted-grade-average","cat":"education","url":"/ja/education/weighted-average/weighted-grade-average/"},{"id":119,"name":"学習時間プランナー","blurb":"ポモドーロ・テクニックに基づいた計画：総セッション数、1日あたりの数、経過時間、週次チャート。","slug":"study-time-planner","formula_key":"study-time-planner","cat":"education","url":"/ja/education/study-planner/study-time-planner/"},{"id":97,"name":"サブネット (CIDR) 計算機","blurb":"IPv4 CIDR サブネット情報: ネットワーク、ブロードキャスト、マスク、ホスト、クラス、アドレス空間の分割。","slug":"subnet-calculator","formula_key":"subnet-calculator","cat":"tech","url":"/ja/tech/bandwidth/subnet-calculator/"},{"id":81,"name":"ダウンロード時間計算機","blurb":"ファイル サイズ、帯域幅、ネットワーク効率を指定した場合のダウンロード時間。","slug":"download-time","formula_key":"download-time","cat":"tech","url":"/ja/tech/bandwidth/download-time/"},{"id":120,"name":"写真・動画ストレージ計算機","blurb":"写真 (MP ×フォーマット) および動画 (解像度 × fps ×コーデック ×時間) のディスク スペース。","slug":"photo-storage","formula_key":"photo-storage","cat":"tech","url":"/ja/tech/storage/photo-storage/"},{"id":34,"name":"カラーコントラストチェッカー","blurb":"AA/AAA合格/不合格バッジ付きWCAG 2.1輝度コントラスト比。","slug":"color-contrast","formula_key":"color-contrast","cat":"tech","url":"/ja/tech/color-contrast/color-contrast/"},{"id":50,"name":"パスワード強度チェッカー","blurb":"長さと文字クラスからパスワードのエントロピーとクラック時間を推定します。","slug":"password-strength","formula_key":"password-strength","cat":"tech","url":"/ja/tech/password-strength/password-strength/"},{"id":82,"name":"Zスコア計算機","blurb":"正規分布における値のZスコア、パーセンタイル、およびp値。","slug":"z-score","formula_key":"z-score","cat":"stats","url":"/ja/statistics/descriptive/z-score/"},{"id":12,"name":"標準偏差","blurb":"平均値、中央値、標本または母集団標準偏差。","slug":"standard-deviation","formula_key":"standard-deviation","cat":"stats","url":"/ja/statistics/descriptive/standard-deviation/"},{"id":105,"name":"信頼区間（平均）","blurb":"平均のCI: σ既知の場合は x̄ ± z·(σ/√n)；小標本の場合は t 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有意性計算機","blurb":"2つのコンバージョン率を比較：p値、リフト、統計的有意性。","slug":"ab-test-significance","formula_key":"ab-test-significance","cat":"stats","url":"/ja/statistics/ab-test/ab-test-significance/"},{"id":35,"name":"フライト時間","blurb":"大圏距離と巡航速度のブロックタイム。","slug":"flight-time","formula_key":"flight-time","cat":"travel","url":"/ja/travel/flight-time/flight-time/"},{"id":85,"name":"時差回復計算機","blurb":"通過したタイムゾーンと方向に基づいた時差回復に必要な日数。","slug":"jet-lag-recovery","formula_key":"jet-lag-recovery","cat":"travel","url":"/ja/travel/jet-lag/jet-lag-recovery/"},{"id":121,"name":"ハバーサイン距離計算機","blurb":"2つの座標間の大圏距離、方位角、中間点、および飛行時間。","slug":"haversine-distance","formula_key":"haversine-distance","cat":"travel","url":"/ja/travel/distance/haversine-distance/"},{"id":122,"name":"荷物許容量計算機","blurb":"エコノミーからファーストクラスまで、クラスに応じた航空会社の許容量と超過料金。","slug":"luggage-allowance","formula_key":"luggage-allowance","cat":"travel","url":"/ja/travel/packing/luggage-allowance/"},{"id":36,"name":"犬の年齢（人間換算）","blurb":"古い7倍ルールを超える、サイズを考慮した犬から人間への年齢換算。","slug":"dog-age","formula_key":"dog-age","cat":"pets","url":"/ja/pets/dog-age/dog-age/"},{"id":53,"name":"猫の年齢（人間換算）","blurb":"AAFP/AAHAに準拠した、猫の年齢を人間換算年齢に変換。","slug":"cat-age","formula_key":"cat-age","cat":"pets","url":"/ja/pets/cat-age/cat-age/"},{"id":83,"name":"犬のフード量計算機","blurb":"体重、ライフステージ、食物のカロリー密度から1日の犬のフード量を計算。","slug":"dog-food-portion","formula_key":"dog-food-portion","cat":"pets","url":"/ja/pets/pet-food/dog-food-portion/"},{"id":84,"name":"水槽容量計算機","blurb":"水槽の正味水量と、水槽の密度チェック。","slug":"aquarium-volume","formula_key":"aquarium-volume","cat":"pets","url":"/ja/pets/aquarium/aquarium-volume/"}]}