Power Station Size Calculator: Find the Right Watts and Watt-Hours
Calculate the right power station size in Wh and W using your devices, runtime, inverter efficiency, reserve, and startup demand for practical backup.
Whole House Load Calculator: Calculate Your Home’s Power Requirements
Estimate your home’s running load, starting demand, and daily energy needs to plan backup power capacity for generators, inverters, and batteries.
Solar Charging Time Calculator: Calculate How Long It Takes to Charge a Battery
Calculate solar battery charging time using battery capacity, current charge, solar panel power, efficiency, and peak sun hours for a practical estimate.
CPAP Runtime Calculator: Calculate How Long a Battery Can Run Your CPAP
Calculate CPAP battery runtime in hours and nights using power draw, battery capacity, sleep time, and connection efficiency for a practical estimate.
Refrigerator Runtime Calculator: Calculate Battery Runtime for Your Fridge
Calculate refrigerator battery runtime using actual power, compressor cycling, usable battery capacity, inverter efficiency, and real-world backup conditions.
Appliance Wattage Calculator: Calculate Running Watts, Starting Watts, and Energy Use
Calculate appliance wattage, running and starting power, daily energy use, and total load to size batteries, inverters, generators, and backup systems
Solar Panel Size Calculator: Calculate How Many Solar Panels You Need
Calculate the solar panel size you need using energy use, peak sun hours, panel wattage, and system losses with a practical expert guide for needs.
Battery Capacity Calculator: How to Calculate Battery Size in Ah and Wh
Calculate battery capacity in Ah and Wh, convert between units, and estimate the battery size needed for a specific load, voltage, and runtime.
Generator Size Calculator: How to Calculate the Right Generator Size
Choosing the right generator size starts with your running and starting wattage. Calculate both to avoid overloads and ensure reliable power when you need it.
Battery Runtime Calculator: How to Calculate Battery Backup Time
Battery runtime depends on usable capacity, power draw, and system efficiency. Calculate these factors together to estimate how long your battery can provide power.