Wattage Calculator

Enter 2 values to get the other values and press the Calculate button:

About Wattage Calculator

What is wattage in electricity?

A watt is a power unit that quantifies the rate of energy transmission and is named after engineer James Watt. When one ampere of current runs through one volt, the rate at which electrical work is completed is measured as a watt. Watts are the unit of measurement for power, which is the rate at which energy flows through electrical systems (W). Watts generally serve as the miles-per-hour equivalent of the electrical world, indicating how quickly electrons are travelling at high speeds. For those keeping score, one watt is equivalent to 3.4 Btus per hour, or one joule per second of energy flowing at a rate in the metric system.

A 60-watt lightbulb will use 60 watts of electricity every hour. A worker who works all day will generate 75 watts of power. An average automobile could use 100,000 watts. The Vermont Yankee nuclear power station produces 650 megawatts, or 650,000,000 watts, while a modest gasoline generator produces 2,000 watts. Power ratings are provided for many other kinds of equipment to indicate how quickly they consume energy.

The amount of electricity you used is expressed in kilowatt-hours on your utility statement. A kWh is a measure of energy, whereas a watt measures power. Energy is characterised as the ability to do tasks like producing heat, light, or motion. Since a kWh is equal to 1,000 watt-hours, running a 60-watt lightbulb for an hour will require 60 watt-hours, or 0.06 kilowatt-hours. In other words, it takes 0.06 kWh of energy to power a lightbulb for an hour. Homes are often just charged for the kWh of electricity that they consume. The electric utility is compensated for making sure that it has enough power on hand to meet that demand by basing the calculation on their peak power usage.

What is volt?

The electric potential or force at which energy flows through a system is measured as voltage. Voltage, which is measured in quantities called volts, can alternatively be thought of as the rate at which individual electrons pass across a circuit. The electrical system in the United States transmits power to residences at two different voltages or pressures: 120 volts and 240 volts. This is due to the fact that various household equipment run at various voltages. While the majority of other gadgets like light bulbs, TVs, computers, and cell phone chargers only require 120 volts, large, power-hungry appliances like air conditioners, electric ranges, and clothes dryers work at 240 volts. Alessandro Volta, an Italian physicist who created one of the first batteries in 1800, is the inspiration behind the word volt.

What is amp?

By calculating the electromagnetic force among electrical conductors carrying current, the SI defines an amp, or amps, as a unit of electrical current in terms of other base units. The ampere is that constant current that, if kept in two straight parallel conductors of infinite length, with minimal circular cross-section, and placed one metre apart in vacuum, would result in a force between these conductors equal to 2×10−7 newtons per metre of length.

What is ohms?

The amount of watts required to power various electrical devices connected to a circuit has been discussed, along with various methods of measuring the amount of electricity flowing through a circuit. Wires, however, are not ideal conductors and make up circuits. The majority of household electrical wire is comprised of copper or aluminium, both of which naturally have some resistance or friction that slows the passage of energy. Electrical gadgets and appliances add their own resistance to the flow of energy through them. Ohms, which bear the name of the German physicist and mathematician Georg Simon Ohm, are used to measure resistance.

How to calculate watts?

We can measure watts in every condition by using a straightforward equation that is easy to grasp. You must be aware of the amps and volts included in a power source in order to compute the amount of watts that source is capable of producing. A multimeter is used to measure amps and volts.

Once you have that knowledge, the calculation for a DC circuit is straightforward:

The formula for calculating watts is W = A x V.

Therefore, if the voltage is 110 volts and the current is 5 amps, then 5 x 110 Equals 550 watts.

For DC circuits, you'll be fine as long as you can recall that watts = amps x volts.

The wattage calculation formula is as follows:

W (joules per second) = V (joules per coulomb) x A (coulombs per second) where W is watts, V is volts, and A is amperes of current.

Wattage is essentially the amount of power created or consumed each second. A 60-watt light bulb, for instance, requires 60 joules per second. The light bulb's wattage is a function of the voltage it works at and the current flow rate through it.

What is the difference between watts and volts?

When working with any form of electrical system, it is essential to understand the differences between watts and volts as well as between amperes and ohms. Electrical terminology must be thoroughly understood in order to repair domestic wiring, and it's also useful to know it in general. How often have you pondered how the two electrical units, "100W/120V" printed on a lightbulb, relate to one another? Are watts and volts essentially equivalent? Can you switch between the two? It is helpful to start with the fundamental definitions of watts, volts, amps, and ohms before examining differences.

Volts and watts are reliant on one another. Watts are a mix of volts and amps, hence they cannot exist without volts. Volts and watts are comparable to pressure and rate, respectively, in simple words and using the hydraulic analogy. Understanding watts vs. volts requires a fundamental understanding of rate. Amperage and voltage are helpful sets of data for electrical systems. Wattage, however, is a further common form of data since it combines the two to create a measurement akin to rate or speed.