iPower Calculator
Smarter Energy Planning Starts Here
iPower Calculator
Calculate your total kVA requirements and get inverter recommendations for your electrical devices.
Add Electrical Devices
Enter details for each device you want to power
No devices added yet. Click "Add Device" to get started.
Power Analysis
Calculation Notes:
- • Assumes 0.9 Power Factor
- • 30% Safety Margin Included
- • Inverter Efficiency: 85-93%
Frequently Asked Questions
Where can I find the wattage on my device?
Most devices have a specification label (usually at the back, bottom, or inside the battery compartment). Look for “W” (Watts), “kW” (Kilowatts), or sometimes “VA” (Volt-Amps). If you only see Voltage (V) and Current (A), you can calculate the wattage using the formula:
Watts(W)=Voltage(V)×Current(A)Watts (W) = Voltage (V) × Current (A)
Why do I need a safety margin to determine my inverter?
A safety margin ensures your inverter isn’t overloaded, prolonging its lifespan and giving you room to add extra devices later.
How do I calculate the inverter size I need?
Follow these steps:
List all devices you want to power (TV, fan, fridge, etc.).
Find the wattage of each device (from the label or manual).
Click on Calculate Power Requirements.
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