Watts (W) to Watt-hour (WH) Conversion Calculator

convert watt-hours to another unit of energy, you need to multiply the value by a conversion factor. To convert watt-hours to watts. To convert a measurement in watt-seconds to a measurement in watt-hours, divide the energy by the following conversion ratio: 3,600 watt-seconds/watt-hour.

Watts To WH Calculator

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Conversion using the Watts to Wh Formula

Watts to Wh Calculation formula

Energy E in watt-hours wh is calculated as the Real Power p In watts w, times the period t in hours hrs. Plug these values into the formula:

Energy(E) = Real Power(P) × Time(hours)

or, E(Wh) = P(W) × T(hrs)

or, Wh = Watts × hrs

For Example, Let’s find the Wh of 1500w for 2.5 hours.

How to use Watts to Wh Calculator?

To use the above "Watts to Wh Conversion Calculator" follow the below steps:

1. Enter Real Power: Input the Real Power in watts or Load watts value in the specific input box. You can enter the value in millivolts mw, Watts W, kilowatts KW, & Megawatts MW by choosing the appropriate option from the dropdown.

2. Enter Time: Input the time in Seconds sec value in the specific input box. You can enter the value in Seconds, or Hours by choosing the appropriate option from the dropdown.

Fig-2: How to Use Watts to Wh Calculator

3. Reset: Click the Reset If you want to reset the calculator to perform another conversion, you can click the Reset button, and all input fields will be cleared.

4. Calculate: Click the Calculate button to obtain the results. The calculated results will be displayed in the Results: section.

5. Swap: If you want to Swap the calculated to Exchange conversion, you can click the Swap button, and Calculate will be Exchange.

6. Result: The calculated "Result" will be displayed in the respective Result In output Wh output field.

Watts to Wh or Kwh Comparison and Sizing Table

Input		Output
watts [W]	hours [hr]	watt-hours [wh]	kilowatt-hours [Kwh]
100 W	1 hr	100 wh	0.100 Kwh
200 W	1 hr	200 wh	0.200 Kwh
300 W	1 hr	300 wh	0.300 Kwh
400 W	1 hr	400 wh	0.400 Kwh
500 W	1 hr	500 wh	0.500 Kwh
600 W	1 hr	600 wh	0.600 Kwh
700 W	1 hr	700 wh	0.700 Kwh
800 W	1 hr	800 wh	0.800 Kwh
900 W	1 hr	900 wh	0.900 Kwh
1000 W	1 hr	1000 wh	1 Kwh
1100 W	1 hr	1100 wh	0.100 Kwh

Frequently Asked Questions - FAQs for Watts to Wh Calculator

What is a Kilowatt?

Since a watt is a relatively small unit of electricity, it is common for it to be measured in multiples, like a kilowatt (kW). A kilowatt, as we mentioned, is just 1,000 watts (W).

What is Energy?

Energy is defined as the product of power and time. For constant value, it is expressed as: energy = power × time

What is kWh?

Kilowatts-hour (kWh) is the unit used to express the energy (E) consumption of an appliance or load.

What is 2 kWh?

2 kilowatt-hour is defined as the amount of work done or energy consumed when a device of Real power kilowatt is used for 2 hours at rated voltage. It is the measurement of electrical energy equivalent to the Real power (P) consumption.

How many kWh is 12 unit?

12 unit of electricity = 12 kWh. The electricity used is generally charged for in 'unit of electricity'. Killowatt-hours is the product of watts × time (1 kilowatt = 1000 watts). A 4-kilowatt heater switched on for 3 hours will have used 12 kilowatt-hours of electricity.

About the Author

Md Jony Islam

Jony is a passionate writer and web developer. He enjoys sharing insights about technology, web development, and design. When he's not writing, he loves hiking and exploring the outdoors.

Watts (W) to Watt-hour (Wh) Conversion Calculator | Watts to Wh Convert | watts to Wh formula