Convert volt ampere to watt

What is a volt ampere?

Voltage, electric current and power are closely related terms in physics. They utilize a set of special metrics and one of them is volt ampere or VA.

Such a metric as volts stands for the voltage. Thus, in the usual socket, there is 220V. As for amperes, they reveal the strength of the current.

At last, when you select any electrical device like a kettle, stove or oven, you’ll discover how much power it consumes. It will be measured in watts (W).

How to find out the power of a particular device, knowing the voltage of your socket is 220 volts and the current is, for instance, 3A? Everything is simple. Just multiply 220V × 3A and you will get the answer, namely 660W or volt-amperes.

Knowing two of these parameters, you can always calculate another one. Therefore, the general rule is Power (W) = Current (A) x Voltage (V).

What is a watt?

Watt is a metric for power evaluation. It got its name after the eponymous physicist, who devoted his time and effort to this area of science. Before the introduction of this option in the late XIX century, for this purpose, horsepower was utilized. Interestingly, it was designed by the same scientist. Still, later the standard system switched to watts.

Modern watt (W) has a meaning of power at which the 1-Joule work is performed during one second. The common abbreviation is W. Many derivatives with common prefixes like kilo- and giga- are utilized in practice.

The evaluation of power in these terms serves as a key characteristic of devices that run on thermal or electrical energy. You can easily find watts on the packaging of the device, which gives the general understanding of its capacity. Thus, everything that is related to thermal or electrical power can be described using this metric.