Power Loss Calculators

Browse 100+ calculators for power loss, EV charging, solar sizing, battery runtime, backup power, and energy costs. Physics-based tools, free to use.

New here? The guides answer the questions behind these calculators with worked numbers first, then link the right tool.

Deciding what to buy before you size it? Compare Powerwall vs generator · LiFePO4 vs lead-acid batteries · pure vs modified sine inverters — each states where each option wins, then links the sizing calculator.

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Showing 14 of 103 calculators (Page 1 of 8)
HAM Radio Emergency Power Calculator calculator preview - Calculate backup power requirements for HAM radio equipment, considering transmit duty cycles, temperature impacts, and equipment power needs.
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HAM Radio Emergency Power Calculator

Calculate backup power requirements for HAM radio equipment, considering transmit duty cycles, temperature impacts, and equipment power needs.

Koi Pond Power Needs calculator preview - Calculate backup power requirements for koi pond pumps, filters, and aeration systems to protect valuable koi during outages.
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Koi Pond Power Needs

Calculate backup power requirements for koi pond pumps, filters, and aeration systems to protect valuable koi during outages.

LED Voltage Drop calculator preview - Calculate LED strip voltage drop, power supply requirements, and wire gauge to ensure consistent brightness in lighting installations.
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LED Voltage Drop

Calculate LED strip voltage drop, power supply requirements, and wire gauge to ensure consistent brightness in lighting installations.

Vertical Farm Energy Audit calculator preview - Analyze daily energy use and costs for indoor vertical farming facilities, accounting for lighting, HVAC, and pumps.

Vertical Farm Energy Audit

Analyze daily energy use and costs for indoor vertical farming facilities, accounting for lighting, HVAC, and pumps.

Community Solar Project Planner calculator preview - Plan community solar projects with subscriber allocation and LCOE analysis.
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Community Solar Project Planner

Plan community solar projects with subscriber allocation and LCOE analysis.

Space Heater Circuit Load calculator preview - Determine if a home circuit can safely handle one or more space heaters, preventing overloads and fire hazards.
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Space Heater Circuit Load

Determine if a home circuit can safely handle one or more space heaters, preventing overloads and fire hazards.

Bitcoin Mining Power Cost calculator preview - Calculate electricity costs for crypto mining rigs including ASIC/GPU power draw and cooling overhead.
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Bitcoin Mining Power Cost

Calculate electricity costs for crypto mining rigs including ASIC/GPU power draw and cooling overhead.

E-Bike Conversion Kit Power calculator preview - Determine motor power and battery size for e-bike conversions with legal compliance checks.
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E-Bike Conversion Kit Power

Determine motor power and battery size for e-bike conversions with legal compliance checks.

Solar Panel Degradation Audit Calculator calculator preview - Analyze historical solar production to quantify panel degradation and warranty compliance.
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Solar Panel Degradation Audit Calculator

Analyze historical solar production to quantify panel degradation and warranty compliance.

Home Gym Equipment Power Consumption Calculator calculator preview - Estimate electricity consumption and monthly cost for home gym equipment based on usage.

Home Gym Equipment Power Consumption Calculator

Estimate electricity consumption and monthly cost for home gym equipment based on usage.

Ice Rink Power Needs calculator preview - Estimate refrigeration, Zamboni charging, lighting, and HVAC loads for ice rink facilities.
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Ice Rink Power Needs

Estimate refrigeration, Zamboni charging, lighting, and HVAC loads for ice rink facilities.

Security Camera Battery Life Calculator calculator preview - Estimate wireless security camera runtime based on motion events, resolution and environment.
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Security Camera Battery Life Calculator

Estimate wireless security camera runtime based on motion events, resolution and environment.

Robot Vacuum Charging Cycles Calculator calculator preview - Estimate battery degradation and remaining run time for robot vacuum cleaners based on usage patterns and charging habits.
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Robot Vacuum Charging Cycles Calculator

Estimate battery degradation and remaining run time for robot vacuum cleaners based on usage patterns and charging habits.

Camping Trailer Battery Life calculator preview - Estimate how long your camping trailer battery will last based on DC and AC appliance usage.
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Camping Trailer Battery Life

Estimate how long your camping trailer battery will last based on DC and AC appliance usage.

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Guides & the whole-home backup planner

Each guide answers one question with worked numbers first, then links the calculator that runs your own. The planner chains four calculators into a complete backup plan.

Browse all 103 calculators