Watt Seconds To Watt Hours Conversion


1 Ws = 0.0002777778 Wh

Want to convert from watt hours to watt seconds instead?

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How to convert watt seconds to watt hours (Ws to Wh)

The formula for converting watt seconds to watt hours is: Wh = Ws × 0.0002777778. To calculate the watt second value in watt hours first substitute the watt second value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 watt second in watt hours we follow these steps:

Wh = Ws × 0.0002777778

Wh = 1 × 0.0002777778

Wh = 0.0002777778

In other words, 1 watt second is equal to 0.0002777778 watt hours.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 8 watt seconds to watt hours is:

  1. Understand the conversion formula: Wh = Ws × 0.0002777778
  2. Substitute the required value. In this case we substitute 8 for Ws so the formula becomes: Wh = 8 × 0.0002777778
  3. Calculate the result using the provided values. In our example the result is: 8 × 0.0002777778 = 0.0022222224 Wh

In summary, 8 watt seconds is equal to 0.0022222224 watt hours.

Converting watt hours to watt seconds

In order to convert the other way around i.e. watt hours to watt seconds, you would use the following formula: Ws = Wh × 3600. To convert watt hours to watt seconds first substitute the watt hour value into the above formula, and then execute the calculation. If we wanted to calculate 1 watt hour in watt seconds we follow these steps:

Ws = Wh × 3600

Ws = 1 × 3600

Ws = 3600

Or in other words, 1 watt hour is equal to 3600 watt seconds.

Conversion Unit Definitions

What is a Watt Second?

A watt-second (Ws), also known as a joule (J), is a unit of energy in the International System of Units (SI). It represents one watt of power expended for one second. Mathematically, it can be defined as: 1 watt-second (Ws) = 1 watt (W) × 1second (s) = 1 joule (J).
Watt-seconds are used to measure the energy consumed or produced by electronic devices or electrical systems in a very short amount of time. For example, the energy released by a camera flash, the energy stored in capacitors, or the energy consumed by a small electronic circuit during its operation can be measured in watt-seconds.
In practical terms, a watt-second is a relatively small unit of energy. To provide some context, 1 watt-second is equivalent to the energy required to power a 1-watt device for 1 second.

What is a Watt Hour?

A watt-hour (Wh) is a unit of energy commonly used in the context of electricity consumption and production. It represents the amount of energy consumed or produced by a one-watt electrical device operating for one hour.
Mathematically, 1 watt-hour is equal to the energy used by a one-watt device over a period of one hour. It can also be expressed as: 1 Wh = 1 watt × 1 hour.
Watt-hours are used to measure the total energy usage of appliances, buildings, or entire power grids over a specific period of time. For example, if a 100-watt light bulb is turned on for 10 hours, it consumes 1,000 watt-hours or 1 kilowatt-hour (kWh) of electricity (since 1 kWh = 1,000 Wh).
Watt-hours are widely used by utility companies to measure and bill for electricity consumption by households and businesses.

Watt Seconds To Watt Hours Conversion Table

Below is a lookup table showing common watt seconds to watt hours conversion values.

Watt Second (Ws)Watt Hour (Wh)
1 Ws0.0002777778 Wh
2 Ws0.0005555556 Wh
3 Ws0.0008333334 Wh
4 Ws0.0011111112 Wh
5 Ws0.001388889 Wh
6 Ws0.0016666668 Wh
7 Ws0.0019444446 Wh
8 Ws0.0022222224 Wh
9 Ws0.0025000002 Wh
10 Ws0.002777778 Wh
11 Ws0.0030555558 Wh
12 Ws0.0033333336 Wh
13 Ws0.0036111114 Wh

Other Common Watt Second Conversions

Below is a table of common conversions from watt seconds to other energy units.

1 watt second in joules1 J
1 watt second in kilojoules0.001 kJ
1 watt second in gigajoules0.000000001 GJ
1 watt second in calories0.2390057361 cal
1 watt second in kilowatt hours0.0000002777778 kWh
1 watt second in electron volts6241509647120400000 eV