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Watt-hours to Joules conversion

Watt-hours to Joules conversion table

Watt-hours (Wh)	Joules (J)
0	0
1	3600
2	7200
3	10800
4	14400
5	18000
6	21600
7	25200
8	28800
9	32400
10	36000
20	72000
30	108000
40	144000
50	180000
60	216000
70	252000
80	288000
90	324000
100	360000
1000	3600000

How to convert watt-hours to joules?

Certainly! Watt-hours (Wh) and Joules (J) are both units of energy. To convert from watt-hours to joules, you can use the following relationship:

1 watt-hour = 1 watt * 1 hour

Since 1 watt is equal to 1 joule per second and there are 3600 seconds in an hour, the conversion factor from watt-hours to joules is:

1 Wh = 1 W * 3600 s = 3600 J

So, to convert 1 watt-hour to joules, you would multiply by 3600:

1 Wh * 3600 J/Wh = 3600 J

Here are some real-world examples of various quantities of watt-hours and their equivalent energy in joules:

Laptop Battery:
- A typical laptop battery might have a capacity of around 50 watt-hours.
- In joules: 50 Wh * 3600 J/Wh = 180,000 J
Smartphone Battery:
- A standard smartphone battery might be around 10 watt-hours.
- In joules: 10 Wh * 3600 J/Wh = 36,000 J
Electric Car Battery:
- An electric car's battery pack might have a capacity of about 60 kilowatt-hours (kWh).
- In joules: 60,000 Wh * 3600 J/Wh = 216,000,000 J
Household Refrigerator:
- A refrigerator may consume around 1 kWh per day.
- In joules: 1,000 Wh * 3600 J/Wh = 3,600,000 J
LED Light Bulb:
- An LED bulb might consume 10 watt-hours over a period of use.
- In joules: 10 Wh * 3600 J/Wh = 36,000 J

By understanding these conversions and examples, you gain a clearer picture of the energy consumed or stored by various devices and systems in measurements that may be more intuitive or standard in different fields of science and engineering.

See below section for step by step unit conversion with formulas and explanations. Please refer to the table below for a list of all the Joules to other unit conversions.

What is watt-hours?

A watt-hour is a unit of energy and its units, Wh, are formed with W for watt and h for hour from SI unit system. Its definition, in the context of electricity, is the energy of one watt power flowing for one hour.

Followings equivalent equations are identical but in different units.

1 Wh = 1 Pt = 1 IVt = 3600 J = 2.247 * 10^{22} eV = 8.598*10^5 cal

$P - Power$
$t - Time \text{ (in hours. Multiply by 3600 to convert to seconds)}$
$I - Current$ $V - Volts$
$J - Joules$
$eV - Electronvolt$
$cal - Calories$

Wikipedia page for Kilowatt-hour (watt-hour redirected to kWh) UCI article on Energy Units and Conversions Ian Woofenden's explanation on difference between Watts and Watt-Hours

What is Joules?

Joules measures energy. It is part of SI units system. Symbol for inches is $J$ .

A Joule is commonly defined as amount of work done when a force of 1 newton displaces a mass through a distance of 1 metre in the direction of the force applied.

1\ J = 1\ kg*m^2/s^{2} = 1\ N*m

1\ J = 1\ Pa*m^3 = 1\ W*s = 1\ C*V

Where $J$ - joule
$kg$ - kilogram
$m$ - metre
$s$ - second
$N$ - newton
$Pa$ - pascal
$W$ - watt
$C$ - coulomb
$V$ - volt

Wiki page for Joules

Complete Watt-hours conversion table

Enter # of Watt-hours

Convert 1 Wh to other units	Result
Watt-hours to Watt-seconds (Wh to Ws)	3600
Watt-hours to Watt-minutes (Wh to Wm)	60
Watt-hours to Milliwatt-hours (Wh to mWh)	1000
Watt-hours to Kilowatt-hours (Wh to kWh)	0.001
Watt-hours to Megawatt-hours (Wh to MWh)	0.000001
Watt-hours to Gigawatt-hours (Wh to GWh)	1e-9
Watt-hours to Joules (Wh to J)	3600
Watt-hours to Kilojoules (Wh to kJ)	3.6
Watt-hours to Megajoules (Wh to MJ)	0.0036
Watt-hours to Gigajoules (Wh to GJ)	0.0000036
Watt-hours to calories (Wh to cal)	860.4206500956
Watt-hours to Kilocalories (Wh to kcal)	0.8604206500956

Watt-hours to Joules conversion