Watt-seconds to Watt-hours conversion

Watt-seconds to Watt-hours conversion table

Watt-seconds (Ws)Watt-hours (Wh)
00
10.0002777777777778
20.0005555555555556
30.0008333333333333
40.001111111111111
50.001388888888889
60.001666666666667
70.001944444444444
80.002222222222222
90.0025
100.002777777777778
200.005555555555556
300.008333333333333
400.01111111111111
500.01388888888889
600.01666666666667
700.01944444444444
800.02222222222222
900.025
1000.02777777777778
10000.2777777777778

How to convert watt-seconds to watt-hours?

Certainly! A Watt-second (Ws) is a unit of energy, and it is equivalent to a Joule (J) because a Watt is defined as one Joule per second. To convert Watt-seconds to Watt-hours, you need to know the relationship between seconds and hours.

There are 3600 seconds in one hour (since 60 seconds/minute * 60 minutes/hour = 3600 seconds/hour).

So, to convert Watt-seconds to Watt-hours, you divide by 3600.

For example: 1 Watt-second (Ws) = 1 Joule 1 Watt-second (Ws) / 3600 seconds/hour = 1/3600 Watt-hour (Wh)

Therefore: 1 Ws = 1 / 3600 Wh ≈ 0.00027778 Wh

Real-World Examples

Let's look at some different quantities of Watt-seconds and convert them to Watt-hours:

1. 100 Watt-seconds:

100Ws=1003600Wh0.02778Wh100 \, \text{Ws} = \frac{100}{3600} \, \text{Wh} \approx 0.02778 \, \text{Wh} Example: A small LED bulb that uses 1 watt of power would run for 100 seconds if provided with 100 Watt-seconds of energy.

2. 1,000 Watt-seconds (1 kWs):

1,000Ws=1,0003600Wh0.27778Wh1{,}000 \, \text{Ws} = \frac{1{,}000}{3600} \, \text{Wh} \approx 0.27778 \, \text{Wh} Example: This is enough energy to power a 100-watt light bulb for about 6.7 seconds (since 100 watts * 6.7 seconds = 670 Watt-seconds, which is slightly under 1,000 Watt-seconds).

3. 10,000 Watt-seconds (10 kWs):

10,000Ws=10,0003600Wh2.7778Wh10{,}000 \, \text{Ws} = \frac{10{,}000}{3600} \, \text{Wh} \approx 2.7778 \, \text{Wh} Example: This amount of energy could power a 10-watt device for approximately 1,000 seconds (10 watts * 1,000 seconds = 10,000 Watt-seconds).

4. 360,000 Watt-seconds (360 kWs):

360,000Ws=360,0003600Wh=100Wh360{,}000 \, \text{Ws} = \frac{360{,}000}{3600} \, \text{Wh} = 100 \, \text{Wh} Example: This is equivalent to 0.1 kWh (kilowatt-hour), the amount of energy a 100-watt light bulb would consume if left on for 1 hour.

5. 3,600,000 Watt-seconds (3.6 MWs):

3,600,000Ws=3,600,0003600Wh=1,000Wh=1kWh3{,}600{,}000 \, \text{Ws} = \frac{3{,}600{,}000}{3600} \, \text{Wh} = 1{,}000 \, \text{Wh} = 1 \, \text{kWh} Example: This is the amount of energy a typical household electric appliance that operates at 1 kW (kilowatt) would use in one hour, such as a clothes dryer running for an hour.

By understanding these conversions and examples, you can get a sense of different quantities of energy and how they apply to real-world scenarios.

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 Watt-hours to other unit conversions.

What is watt-seconds?

Watt-seconds, also known as joules (J), is a unit of energy. It represents the amount of energy expended or work done when 1 watt (a unit of power) is applied for 1 second.

In essence, it measures how much "oomph" or "energy punch" is delivered in that one-second period. Think of it as a way to quantify the total energy transferred by a source (like a light bulb) over a short duration.

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.

1Wh=1Pt=1IVt=3600J=2.2471022eV=8.598105cal1 Wh = 1 Pt = 1 IVt = 3600 J = 2.247 * 10^{22} eV = 8.598*10^5 cal

PPowerP - Power
tTime (in hours. Multiply by 3600 to convert to seconds)t - Time \text{ (in hours. Multiply by 3600 to convert to seconds)}
ICurrentI - Current VVoltsV - Volts
JJoulesJ - Joules
eVElectronvolteV - Electronvolt
calCaloriescal - 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

Complete Watt-seconds conversion table

Enter # of Watt-seconds
Convert 1 Ws to other unitsResult
Watt-seconds to Watt-minutes (Ws to Wm)0.01666666666667
Watt-seconds to Watt-hours (Ws to Wh)0.0002777777777778
Watt-seconds to Milliwatt-hours (Ws to mWh)0.2777777777778
Watt-seconds to Kilowatt-hours (Ws to kWh)2.7777777777778e-7
Watt-seconds to Megawatt-hours (Ws to MWh)2.7777777777778e-10
Watt-seconds to Gigawatt-hours (Ws to GWh)2.7777777777778e-13
Watt-seconds to Joules (Ws to J)1
Watt-seconds to Kilojoules (Ws to kJ)0.001
Watt-seconds to Megajoules (Ws to MJ)0.000001
Watt-seconds to Gigajoules (Ws to GJ)1e-9
Watt-seconds to calories (Ws to cal)0.2390057361377
Watt-seconds to Kilocalories (Ws to kcal)0.0002390057361377