⚡ 能源電力工具

🔌 三相功率Three Phase Power 輸入三相系統的線電壓、線電流與功率因數，工具按 √3×線電壓×線電流×功率因數 計算總有功功率，適用於工業配電估算。Three Phase Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 充電時間估算Estimate Time Current 輸入電池容量（Ah）、充電電流（A）與充電效率，計算預計充電時間、電池能量（Wh）及充電功率，適用於鋰電或鉛酸電池規劃。Estimate Time Current - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🧊 冰箱耗電量估算Fridge Power Estimator 輸入冰箱容積、能效等級與環境溫度，工具估算每日耗電量與全年電費，輔助選購節能機型或評估現有冰箱開銷。Fridge Power Estimator - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌡️ 制熱量 / 耗電量Cop Heatpump 熱泵能效比（COP）計算器，輸入制熱量與耗電量求得能效比，評估熱泵與空調能效，輔助選型與節能對比，純前端執行。Cop Heatpump - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 功率 × 時間Energy Consumption 能耗線上計算器，輸入裝置功率與執行時間，按功率×時間求得用電量（千瓦時），支援多裝置累加與電費估算，適合節能評估，純前端。Energy Consumption - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 噪音分貝疊加Calculator Calc 4 輸入多個聲源分貝值（每行一個或用逗號、空格分隔），按對數能量疊加法計算總噪聲分貝，並判斷是否超出噪聲限值。Calculator Calc 4 - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy ... ☀️ 太陽能發電計算Solar Calculator 太陽能發電計算器。輸入裝機容量、峰值日照小時數（城市選擇）等引數，估算光伏系統年發電量與收益，輔助家庭或工商業分散式光伏投資評估。Solar Calculator - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy ... ⚡ 太陽能發電量估算Estimate Area 輸入光伏板面積、日均日照時數、元件轉換效率與系統效率，估算年發電量（kWh）及按電價折算的經濟收益，輔助光伏選型。Estimate Area - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌅 峰值 × 等效日照時數Daily Irradiation 日輻照量線上計算器，輸入峰值輻照度與等效日照時數求得每日接收太陽能，用於光伏收益與系統設計評估，純前端執行。Daily Irradiation - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🔌 待機功耗計算器Standby Power Calculator 勾選家中常用電器並設定數量，按各裝置待機功耗計算全家待機總功率，並估算關閉待機一年可節省的電費金額。Standby Power Calculator - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the E... 🕐 投資 / 年節約Energy Payback 投資回收期計算器。輸入初始投資額與預計年節約金額，按 回收期 = 初投資 / 年節約 估算節能或裝置改造的回本時間，輔助投資可行性決策。Energy Payback - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🎚️ 有功 / 視在Power Factor 功率因數線上計算器，輸入有功功率與視在功率（或電壓電流相位），求得 cosφ 衡量電能利用效率，輔助無功補償評估，純前端執行。Power Factor - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 💧 水質TDS值評估Water Tds Evaluator 輸入水體 TDS 總溶解固體值（mg/L），評估飲用水、養殖用水等水質等級，並給出適用場景與日常飲用健康建議。Water Tds Evaluator - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌍 水質TDS值評估（輸入數值）Assessor Water Quality 輸入TDS值(總溶解固體)評估水質等級，對照GB 5749飲用水標準判定是否適宜飲用Assessor Water Quality - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌍 溫室氣體排放換算（CO₂當量）Convert Emission 將甲烷、氧化亞氮等溫室氣體按全球增溫潛勢折算為 CO₂ 當量，用於碳排核算與對比，純前端換算便於快速估算。Convert Emission - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energ... ⚡ 熱泵COP計算Calculator Calc 5 輸入熱泵的制熱量或製冷量及輸入功率，依據公式計算 COP 能效比，並對照標準判定其能效等級（如一級、二級）。Calculator Calc 5 - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy ... 🔄 熱泵能效比計算器Heat Pump Cop 輸入熱泵制熱與製冷引數，分別計算 COP 制熱能效比與 EER 製冷能效比，並對比不同工況下的節能效益，輔助熱泵選型。Heat Pump Cop - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 📉 生命週期成本 / 發電量Lcoe 按 CAPEX、折現率、運維與年發電量計算平準化度電成本 LCOE，比較發電專案經濟性，純前端估算輔助投資判斷。Lcoe - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 💡 用電計算Power Consumption 用電計算器。新增多個家用電器並輸入功率與使用時間，計算總耗電量與電費，幫助家庭用電管理與節能降費，支援自定義電器引數。Power Consumption - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🪙 用量 × 單價Fuel Cost 燃料費用計算器。輸入燃料用量與單價，按 費用 = 用量 × 單價 估算油氣等燃料支出，支援多場景成本對比，適合家庭與企業用能預算管理。Fuel Cost - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🔁 由冷熱源溫度求理論最高熱效率Carnot Efficiency 輸入低溫熱源溫度 T_c 與高溫熱源溫度 T_h（開爾文），求卡諾效率。Carnot Efficiency - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🧾 由功率、時長與電價求電費Energy Cost 輸入裝置功率（瓦）、使用時長（小時）與電價（元/度），工具先換算為千瓦再計算應付電費，適合估算家電日常耗電成本。Energy Cost - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🕐 由功率與用電時長求電能Energy from Power 輸入用電裝置功率（瓦）與執行時長（小時），工具按 E=P·t 計算消耗電能（千瓦時），用於估算電器用電量。Energy from Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🥞 由厚度與導熱係數求熱阻R Value Insulation 輸入保溫材料厚度 d 與導熱係數 k，工具按 R=d/k 計算熱阻，幫助比較不同隔熱層方案的保溫效果。R Value Insulation - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ➡️ 由導熱係數、面積、溫差與厚度求熱流率Conductive Heat Rate 輸入材料導熱係數k、傳熱面積A、兩側溫差ΔT與厚度d，按傅立葉定律求穩態熱流率Q̇，用於建築保溫、換熱器與隔熱層設計的傳熱估算。Conductive Heat Rate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 由電壓與電流求電功率Electrical Power 電功率計算器。輸入電壓 U 與電流 I，按 P = U·I 求出電功率，適用於電氣裝置功耗估算、配電設計與能效評估的即時計算。Electrical Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🔥 由電流與電阻求熱功率Joule Heating 輸入電流（安）與電阻（歐），工具按 P=I²·R 計算導體的焦耳熱功率，用於評估發熱量或電路損耗。Joule Heating - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 💨 由空氣密度、掃風面積與風速求風能功率Wind Power Physics 輸入空氣密度、掃風面積與風速，工具按 P=½·ρ·A·v³ 計算風能功率，說明風速三次方對發電量的關鍵影響。Wind Power Physics - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🔋 由能量與質量求比能量Specific Energy 輸入系統的總能量與質量，工具計算比能量（質量能量密度），便於比較電池、燃料等儲能載體的能量密集程度。Specific Energy - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌡️ 由質量、比熱與溫升求熱量Heat Energy Q 輸入物質質量、比熱容與溫度變化量，工具按 Q=m·c·ΔT 計算所需熱量，適合加熱、冷卻過程的能量估算。Heat Energy Q - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⬇️ 由質量、重力加速度與高度求勢能Gravitational Potential Energy Calculator - Gravitational Potential Energy : Input m , g , h , Output E_p ( Joule ) 輸入物體質量 m、重力加速度 g 與高度 h，工具按 E_p=m·g·h 計算重力勢能，適用於物理習題與勢能變化的直觀演示。Gravitational Potential Energy Calculator - Gravitational Potential Energy : Input m , g , h , Output E_p ( Joule ) - free online tool. ⚡ 由質量與速度求動能Kinetic Energy Calculator - Kinetic Energy : Input m , v , Output E_k ( Joule ) 動能計算器。輸入物體質量 m 與速度 v，按 E_k = ½mv² 求運動物體的動能，適用於物理教學、碰撞分析與運動系統能量估算。Kinetic Energy Calculator - Kinetic Energy : Input m , v , Output E_k ( Joule ) - free online tool. Free online tool on ToolBox — 100% client-side, no data... ☀️ 由面積、輻照度與效率求光伏功率Solar Output Physics 輸入光伏板面積、太陽輻照度與地面/元件效率，工具按 P=A·G·η 估算理論輸出功率，用於初步評估電站發電能力。Solar Output Physics - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🔋 電池容量換算（Ah ↔ Wh）Battery Capacity Wh 輸入電池容量（Ah）與標稱電壓（V），工具按 能量=容量×電壓 換算為瓦時（Wh），也支援反向由 Wh 求 Ah，便於比較電池能量。Battery Capacity Wh - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🔋 電池續航計算Battery Life 電池續航計算器。輸入電池容量（mAh/Wh）與裝置工作電流或功率，估算可使用時長，幫助數碼裝置、IoT 與便攜產品的電池選配與續航預估。Battery Life - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌱 碳足跡計算Carbon Footprint 輸入家庭用電、交通出行與飲食習慣等資料，工具估算個人或家庭年度碳排放總量（kgCO₂e），幫助識別減排重點。Carbon Footprint - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌬️ 空氣清淨機適用面積計算Air Purifier Area 輸入空氣清淨機的 CADR 潔淨空氣量（m³/h），工具按推薦換氣次數換算出適用的房間面積，幫你選購匹配戶型的產品。Air Purifier Area - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 能效計算Energy Efficiency 輸入空調或熱泵的輸出冷熱量與輸入功率，工具計算能效比 COP/EER/SEER，方便比較不同裝置的節能水平。Energy Efficiency - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 能源與環境計算器Energy Calculator ⚡ 能源與環境計算器Energy Calculator - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy ... 📦 能量 / 質量Energy Density - Input Energy and Quality , Calculate Quality Energy Density 能量密度線上計算器，輸入總能量與質量求得單位質量儲能（Wh/kg 或 J/kg），用於電池與燃料對比，純前端執行。Energy Density - Input Energy and Quality , Calculate Quality Energy Density - free online tool. Free online tool on ToolBox — 100% client-side, no data up... 🔥 質量 × 低位熱值Fuel Heat Value 燃料發熱量線上計算器，輸入燃料質量與低位熱值（LHV）求得總能量，支援煤、油、氣等多種燃料對比，適合能耗核算，純前端。Fuel Heat Value - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 💯 輸出 / 輸入Thermal Efficiency 熱效率計算器。輸入有效能量輸出與總能量輸入，按 η = 輸出/輸入 計算熱效率（百分數），用於發動機、鍋爐與換熱裝置的能效評估。Thermal Efficiency - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 階梯電費計算Calculator Calc Power Usage 輸入月度用電量（千瓦時），工具按居民階梯電價分檔累進計算各檔電費與合計金額，幫你預估每月電費的構成與總額。Calculator Calc Power Usage - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of th... ☀️ 面積 × 輻照度 × 效率Solar Panel Power 光伏陣列功率線上計算器，輸入元件面積、峰值日照輻照度與光電轉換效率，估算發電功率與日發電量，輔助光伏系統設計，純前端。Solar Panel Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 💨 風力發電功率估算Wind Power Estimator 輸入風速、風輪直徑或葉片引數，工具估算風力發電機的理論功率並乘以效率得到實際輸出，用於風場或微型風機評估。Wind Power Estimator - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 💨 風功率Wind Power 風功率線上計算器，基於空氣密度、掃風面積與風速立方估算風能功率，用於風機選址與發電潛力評估，純前端執行。Wind Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools.