Inverter Size Calculator
This free inverter size calculator helps you determine the correct inverter capacity based on your total electrical load.Enter the wattage of appliances you want to run to calculate the required inverter size in VA or kVA for home backup or solar systems.
Inverter Size Calculator
How This Calculator Works
This inverter size calculator estimates the required inverter capacity by dividing the total electrical load by the power factor.It provides results in both VA and kVA, which are commonly used ratings for inverters.
How to Use the Inverter Size Calculator
– Calculate the total wattage of appliances you want to run
– Enter the total load in watts
– Enter the inverter power factor
– Click calculate to get inverter size in VA and kVA
Inverter Size Formula
Inverter Size (VA) = Total Load (Watts) ÷ Power Factor
How This Calculator Works
This inverter size calculator helps determine the suitable inverter capacity based on connected load, appliance usage, and backup requirements for home or solar systems.
Who Should Use This Calculator
- Homeowners selecting inverter size
- Users upgrading inverter systems
- Solar system planners
- Beginners avoiding under- or over-sizing
Important Note
Calculated inverter size is an estimate. Always consult a professional installer before final purchase.
FAQs
How do I calculate total load for inverter?
Add the wattage of all appliances you want to run simultaneously.
What is power factor in inverter?
Power factor represents efficiency. Most home inverters use a power factor of 0.8.
Is a higher inverter size better?
Yes, choosing a slightly higher inverter capacity ensures smooth operation and future expansion.
Is this inverter calculator free to use?
Yes, this inverter size calculator is completely free.
Selecting the correct battery is important, so try our Solar Battery Size Calculator for accurate battery sizing.
You can estimate the total system budget using our Solar Installation Cost Calculator.
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Disclaimer:
Inverter size suggestions from this calculator are estimates based on input values.
Always consult a qualified professional before purchasing or installing an inverter.