Welcome to the kVa to Watts converter!

In electrical engineering, it is often necessary to convert the kVA (kilovolt-amperes) rating of a device to Watts (watts) to represent its actual power output. This simple online tool will help you make this conversion easily.

Effect of Power Factor: The actual output power (Watts) of a device is affected by the power factor (PF). The PF expresses the ratio between the actual output power and the apparent power (kVA).

Accurate calculations: Knowing the actual Watts output of your equipment is critical for power distribution, load calculations, and energy management.

The power factor (Power Factor, or PF) is a measure of the efficiency of the electricity used by electrical equipment (including transformers, transmission lines, etc. of the power grid). It is defined as the ratio of active power (P) to apparent power (S) and is expressed mathematically as PF = P/S. In sinusoidal circuits, the power factor can also be expressed as the cosine of the phase difference (Φ) between the voltage and the current, i.e. PF = cosΦ.

The power factor indicates the proportion of energy taken from the power source that is actually consumed. A higher power factor indicates a more efficient utilization of electrical energy.

It takes the form of a number between 0 and 1. For example, a good power factor is 0.8 or higher.

• Enter kVA: First, enter the kVA rating of the unit in the “Enter kVA Value” box.
• Enter the Power Factor: Next, enter the appropriate power factor in the “Power Factor (PF)” box. Please note that the power factor is usually a decimal number between 0 and 1.
• Click Convert: Click the “Convert to Watts” button and the calculator will automatically calculate and display the actual Watts output of the device.

The conversion of kVA (kilovolt-amperes) to Watts (watts) is a common requirement in solar power systems because the power generated by a solar power system is usually measured in kVA for its capacity, while the actual power used is usually measured in Watts. While kVA and Watts can ideally be equal (i.e., when the power factor is 1), in practice there is often a difference between them due to the presence of reactive power.

• System Planning: When estimating the total capacity of a solar power system, converting kVA to Watts helps provide a more visual understanding of the actual power the system can produce.
• Equipment Selection: When selecting inverters and other key equipment, you need to know the Watts output of the system to ensure that the equipment matches and operates efficiently.
• Performance Monitoring: Converting the kVA generated by the system into Watts allows for an accurate assessment of the actual power output and efficiency of the system.
• Economic Analysis: When evaluating the return on investment of a solar power system, converting capacity to Watts helps to calculate costs and expected returns.