Energy & Environment · Page 4
Compare energy quantities, charging requirements and entered efficiency or solar assumptions.
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A tool can belong to several categories. All tools lists each calculator once.
Earth Science
Energy
Mixed Hot Water and Heating Cost Calculator
Home & Everyday · Energy & Environment · Money ManagementEstimate hot/cold water volumes and ideal heating input for an entered mixed-water demand and temperature.
Open calculator ↗Room Lighting Lumens and Fixture Count Calculator
Home & Everyday · Energy & Environment · Design & DrawingEstimate whole fixture count and average maintained illuminance from an entered light-level target and utilization assumptions.
Open calculator ↗Solar PV Energy Scenario Calculator
Energy & Environment · Home & Everyday · Money ManagementEstimate energy and optional electricity value from entered peak-sun hours, combined losses and self-consumption.
Open calculator ↗EV Charging Time and Cost Calculator
Automotive · Energy & Environment · Travel · Money ManagementEstimate grid energy, charging time and optional electricity cost between two state-of-charge levels using an entered average wall-side charging power.
Open calculator ↗Gardening
Home
Room Air Exchange and Ideal Mixing Calculator
Home & Everyday · Energy & Environment · Science & LabConvert entered replacement airflow to air changes per hour and model the fraction of original room air remaining under perfect mixing.
Open calculator ↗Laundry Loads and Cycle Planner
Home & Everyday · Time & Planning · Energy & EnvironmentEstimate balanced wash loads, parallel cycle time, water, electricity and optional variable cost from your entered program data.
Open calculator ↗Household Water Use Worksheet
Home & Everyday · Energy & Environment · Money ManagementTotal entered flow-based and fixed-volume fixture uses into daily, period and per-person water estimates.
Open calculator ↗Meter Reading and Usage Calculator
Home & Everyday · Energy & Environment · Money ManagementCompare dated cumulative readings, daily usage and optional cost with an explicit single-rollover setting.
Open calculator ↗Hydraulics
Mechanical
Pump Power Calculator
Science & Lab · Energy & Environment · Work & ProductivityCalculate hydraulic output, required shaft input and losses from flow plus either pressure rise or pump head.
Open calculator ↗Motor Torque, Power and Speed Calculator
Science & Lab · Energy & Environment · Work & ProductivitySolve rotational power, torque or speed from the other two quantities with explicit torque and speed units.
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