⚡ 能源电力工具

🔌 三相功率Three Phase Power 输入三相系统的线电压、线电流与功率因数，工具按 √3×线电压×线电流×功率因数 计算总有功功率，适用于工业配电估算。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. ⚡ 充电时间估算Estimate Time Current 输入电池容量（Ah）、充电电流（A）与充电效率，计算预计充电时间、电池能量（Wh）及充电功率，适用于锂电或铅酸电池规划。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. 🧊 冰箱耗电量估算Fridge Power Estimator 输入冰箱容积、能效等级与环境温度，工具估算每日耗电量与全年电费，辅助选购节能机型或评估现有冰箱开销。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. 🌡️ 制热量 / 耗电量Cop Heatpump 热泵能效比（COP）计算器，输入制热量与耗电量求得能效比，评估热泵与空调能效，辅助选型与节能对比，纯前端运行。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 × 时间Energy Consumption 能耗在线计算器，输入设备功率与运行时间，按功率×时间求得用电量（千瓦时），支持多设备累加与电费估算，适合节能评估，纯前端。Energy Consumption - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 噪音分贝叠加Calculator Calc 4 输入多个声源分贝值（每行一个或用逗号、空格分隔），按对数能量叠加法计算总噪声分贝，并判断是否超出噪声限值。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 ... ☀️ 太阳能发电计算Solar Calculator 太阳能发电计算器。输入装机容量、峰值日照小时数（城市选择）等参数，估算光伏系统年发电量与收益，辅助家庭或工商业分布式光伏投资评估。Solar Calculator - calculate online, free and accurate. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy ... ⚡ 太阳能发电量估算Estimate Area 输入光伏板面积、日均日照时数、组件转换效率与系统效率，估算年发电量（kWh）及按电价折算的经济收益，辅助光伏选型。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 × 等效日照时数Daily Irradiation 日辐照量在线计算器，输入峰值辐照度与等效日照时数求得每日接收太阳能，用于光伏收益与系统设计评估，纯前端运行。Daily Irradiation - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🔌 待机功耗计算器Standby Power Calculator 勾选家中常用电器并设置数量，按各设备待机功耗计算全家待机总功率，并估算关闭待机一年可节省的电费金额。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... 🕐 投资 / 年节约Energy Payback 投资回收期计算器。输入初始投资额与预计年节约金额，按 回收期 = 初投资 / 年节约 估算节能或设备改造的回本时间，辅助投资可行性决策。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 / 视在Power Factor 功率因数在线计算器，输入有功功率与视在功率（或电压电流相位），求得 cosφ 衡量电能利用效率，辅助无功补偿评估，纯前端运行。Power Factor - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 💧 水质TDS值评估Water Tds Evaluator 输入水体 TDS 总溶解固体值（mg/L），评估饮用水、养殖用水等水质等级，并给出适用场景与日常饮用健康建议。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. 🌍 水质TDS值评估（输入数值）Assessor Water Quality 输入TDS值(总溶解固体)评估水质等级，对照GB 5749饮用水标准判定是否适宜饮用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. 🌍 温室气体排放换算（CO₂当量）Convert Emission 将甲烷、氧化亚氮等温室气体按全球增温潜势折算为 CO₂ 当量，用于碳排核算与对比，纯前端换算便于快速估算。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... ⚡ 热泵COP计算Calculator Calc 5 输入热泵的制热量或制冷量及输入功率，依据公式计算 COP 能效比，并对照标准判定其能效等级（如一级、二级）。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 ... 🔄 热泵能效比计算器Heat Pump Cop 输入热泵制热与制冷参数，分别计算 COP 制热能效比与 EER 制冷能效比，并对比不同工况下的节能效益，辅助热泵选型。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. 📉 生命周期成本 / 发电量Lcoe 按 CAPEX、折现率、运维与年发电量计算平准化度电成本 LCOE，比较发电项目经济性，纯前端估算辅助投资判断。Lcoe - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 💡 用电计算Power Consumption 用电计算器。添加多个家用电器并输入功率与使用时间，计算总耗电量与电费，帮助家庭用电管理与节能降费，支持自定义电器参数。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 × 单价Fuel Cost 燃料费用计算器。输入燃料用量与单价，按 费用 = 用量 × 单价 估算油气等燃料支出，支持多场景成本对比，适合家庭与企业用能预算管理。Fuel Cost - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🔁 由冷热源温度求理论最高热效率Carnot Efficiency 输入低温热源温度 T_c 与高温热源温度 T_h（开尔文），求卡诺效率。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、时长与电价求电费Energy Cost 输入设备功率（瓦）、使用时长（小时）与电价（元/度），工具先换算为千瓦再计算应付电费，适合估算家电日常耗电成本。Energy Cost - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🕐 由功率与用电时长求电能Energy from Power 输入用电设备功率（瓦）与运行时长（小时），工具按 E=P·t 计算消耗电能（千瓦时），用于估算电器用电量。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. 🥞 由厚度与导热系数求热阻R Value Insulation 输入保温材料厚度 d 与导热系数 k，工具按 R=d/k 计算热阻，帮助比较不同隔热层方案的保温效果。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. ➡️ 由导热系数、面积、温差与厚度求热流率Conductive Heat Rate 输入材料导热系数k、传热面积A、两侧温差ΔT与厚度d，按傅里叶定律求稳态热流率Q̇，用于建筑保温、换热器与隔热层设计的传热估算。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. ⚡ 由电压与电流求电功率Electrical Power 电功率计算器。输入电压 U 与电流 I，按 P = U·I 求出电功率，适用于电气设备功耗估算、配电设计与能效评估的即时计算。Electrical Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🔥 由电流与电阻求热功率Joule Heating 输入电流（安）与电阻（欧），工具按 P=I²·R 计算导体的焦耳热功率，用于评估发热量或电路损耗。Joule Heating - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 💨 由空气密度、扫风面积与风速求风能功率Wind Power Physics 输入空气密度、扫风面积与风速，工具按 P=½·ρ·A·v³ 计算风能功率，说明风速三次方对发电量的关键影响。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. 🔋 由能量与质量求比能量Specific Energy 输入系统的总能量与质量，工具计算比能量（质量能量密度），便于比较电池、燃料等储能载体的能量密集程度。Specific Energy - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌡️ 由质量、比热与温升求热量Heat Energy Q 输入物质质量、比热容与温度变化量，工具按 Q=m·c·ΔT 计算所需热量，适合加热、冷却过程的能量估算。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. ⬇️ 由质量、重力加速度与高度求势能Gravitational Potential Energy Calculator - Gravitational Potential Energy : Input m , g , h , Output E_p ( Joule ) 输入物体质量 m、重力加速度 g 与高度 h，工具按 E_p=m·g·h 计算重力势能，适用于物理习题与势能变化的直观演示。Gravitational Potential Energy Calculator - Gravitational Potential Energy : Input m , g , h , Output E_p ( Joule ) - free online tool. ⚡ 由质量与速度求动能Kinetic Energy Calculator - Kinetic Energy : Input m , v , Output E_k ( Joule ) 动能计算器。输入物体质量 m 与速度 v，按 E_k = ½mv² 求运动物体的动能，适用于物理教学、碰撞分析与运动系统能量估算。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... ☀️ 由面积、辐照度与效率求光伏功率Solar Output Physics 输入光伏板面积、太阳辐照度与地面/组件效率，工具按 P=A·G·η 估算理论输出功率，用于初步评估电站发电能力。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. 🔋 电池容量换算（Ah ↔ Wh）Battery Capacity Wh 输入电池容量（Ah）与标称电压（V），工具按 能量=容量×电压 换算为瓦时（Wh），也支持反向由 Wh 求 Ah，便于比较电池能量。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. 🔋 电池续航计算Battery Life 电池续航计算器。输入电池容量（mAh/Wh）与设备工作电流或功率，估算可使用时长，帮助数码设备、IoT 与便携产品的电池选配与续航预估。Battery Life - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌱 碳足迹计算Carbon Footprint 输入家庭用电、交通出行与饮食习惯等数据，工具估算个人或家庭年度碳排放总量（kgCO₂e），帮助识别减排重点。Carbon Footprint - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. 🌬️ 空气净化器适用面积计算Air Purifier Area 输入空气净化器的 CADR 洁净空气量（m³/h），工具按推荐换气次数换算出适用的房间面积，帮你选购匹配户型的产品。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. ⚡ 能效计算Energy Efficiency 输入空调或热泵的输出冷热量与输入功率，工具计算能效比 COP/EER/SEER，方便比较不同设备的节能水平。Energy Efficiency - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 能源与环境计算器Energy Calculator ⚡ 能源与环境计算器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 / 质量Energy Density - Input Energy and Quality , Calculate Quality Energy Density 能量密度在线计算器，输入总能量与质量求得单位质量储能（Wh/kg 或 J/kg），用于电池与燃料对比，纯前端运行。Energy Density - Input Energy and Quality , Calculate Quality Energy Density - free online tool. Free online tool on ToolBox — 100% client-side, no data up... 🔥 质量 × 低位热值Fuel Heat Value 燃料发热量在线计算器，输入燃料质量与低位热值（LHV）求得总能量，支持煤、油、气等多种燃料对比，适合能耗核算，纯前端。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. 💯 输出 / 输入Thermal Efficiency 热效率计算器。输入有效能量输出与总能量输入，按 η = 输出/输入 计算热效率（百分数），用于发动机、锅炉与换热设备的能效评估。Thermal Efficiency - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools. ⚡ 阶梯电费计算Calculator Calc Power Usage 输入月度用电量（千瓦时），工具按居民阶梯电价分档累进计算各档电费与合计金额，帮你预估每月电费的构成与总额。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... ☀️ 面积 × 辐照度 × 效率Solar Panel Power 光伏阵列功率在线计算器，输入组件面积、峰值日照辐照度与光电转换效率，估算发电功率与日发电量，辅助光伏系统设计，纯前端。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. 💨 风力发电功率估算Wind Power Estimator 输入风速、风轮直径或叶片参数，工具估算风力发电机的理论功率并乘以效率得到实际输出，用于风场或微型风机评估。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. 💨 风功率Wind Power 风功率在线计算器，基于空气密度、扫风面积与风速立方估算风能功率，用于风机选址与发电潜力评估，纯前端运行。Wind Power - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Energy & Power tools.