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Single conversion
To convert from Watt-minute (Wm) to Watt-second (Ws), use the following formula:
Let's convert 5 Watt-minute (Wm) to Watt-second (Ws).
Using the formula:
Therefore, 5 Watt-minute (Wm) is equal to Watt-second (Ws).
Here are some quick reference conversions from Watt-minute (Wm) to Watt-second (Ws):
| Watt-minutes | Watt-seconds |
|---|---|
| 0.000001 Wm | Ws |
| 0.001 Wm | Ws |
| 0.1 Wm | Ws |
| 1 Wm | Ws |
| 2 Wm | Ws |
| 3 Wm | Ws |
| 4 Wm | Ws |
| 5 Wm | Ws |
| 6 Wm | Ws |
| 7 Wm | Ws |
| 8 Wm | Ws |
| 9 Wm | Ws |
| 10 Wm | Ws |
| 20 Wm | Ws |
| 30 Wm | Ws |
| 40 Wm | Ws |
| 50 Wm | Ws |
| 100 Wm | Ws |
| 1000 Wm | Ws |
| 10000 Wm | Ws |
For all Energy converters, choose units using the From/To dropdowns above.
A Watt-minute (Wm) is a unit of energy that measures the total energy consumed when one watt of power is applied for exactly one minute.
The plural form is Watt-minutes.
To make it easier to understand, think of it like filling a bucket with a hose. If a watt is the speed at which water flows, a Watt-minute is the total amount of water in the bucket after the hose has been running for one minute.
One Watt-minute is precisely equal to 60 Joules (J).
This conversion is simple because a watt is defined as one joule per second (1 W = 1 J/s). Since there are 60 seconds in a minute, the calculation is straightforward:
1 Watt-minute = 1 Watt × 60 seconds = 60 Joules
This simple formula makes the Wm to J conversion easy to remember for any energy calculation.
While you're more likely to see Watt-hours (Wh) or kilowatt-hours (kWh) on your electricity bill, the Watt-minute is an essential unit for more precise energy measurement in specific fields.
It's most useful in situations where energy is tracked over short intervals, such as:
A Watt-second (Ws) is a unit of energy in the International System of Units (SI), equal to exactly one Joule (J).
It is a fundamental measurement used to quantify energy transfer, especially in fields like physics and photography.
The relationship is simple: one Watt-second is precisely equal to one Joule.
This 1:1 equivalence means the two units are entirely interchangeable. So, if you have 100 Ws of energy, you also have 100 J of energy.
This makes it a straightforward and reliable unit for any precise energy calculation.
In photography, the Watt-second is the standard for measuring the maximum energy output of a studio strobe or electronic camera flash.
Essentially, a higher Watt-second rating means a more powerful flash.
For example, a 500 Ws strobe has more flash power than a 200 Ws unit, allowing it to produce a much brighter burst of light.
This extra power is crucial for illuminating larger scenes or overpowering ambient light, like bright sunshine.
The name "Watt-second" perfectly describes its own formula.
It is the amount of energy used when one Watt of power is applied for exactly one second.
This gives us the fundamental equation for energy transfer:
Energy (Ws) = Power (W) × Time (s)
To sum up, while the Watt-second is a universal unit of energy equivalent to a Joule, its most common practical use is in photography.
When choosing a studio strobe or camera flash, a higher Ws rating gives you more lighting power, offering greater creative control over your shots.