Convert watt-second to millijoule
Please provide values below to convert watt-second [W*s] to millijoule [mJ], or Convert millijoule to watt-second.
1 W*s = 1000 mJ. To convert watt-second to millijoule, multiply the value by 1000; to go the other way, divide by it (1 mJ = 0.001 W*s). Both units measure energy and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 W*s = 1000 mJ
- 1 mJ = 0.001 W*s
- 10 W*s = 10000 mJ
- 100 W*s = 100000 mJ
How to Convert Watt-Second to Millijoule
1 W*s = 1000 mJ
Example: convert 15 W*s to mJ:
15 W*s = 15 × 1000 mJ = 15000 mJ
Watt-Second to Millijoule Conversion Table
| watt-second | millijoule |
|---|---|
| 1 W*s | 1000 mJ |
| 2 W*s | 2000 mJ |
| 3 W*s | 3000 mJ |
| 5 W*s | 5000 mJ |
| 10 W*s | 10000 mJ |
| 20 W*s | 20000 mJ |
| 50 W*s | 50000 mJ |
| 100 W*s | 100000 mJ |
| 500 W*s | 500000 mJ |
| 1000 W*s | 1000000 mJ |
Watt-Second
A watt-second (W·s) is a unit of energy equivalent to one joule, representing the amount of energy transferred or converted when one watt of power is applied for one second.
History/Origin
The watt-second originated from the SI system of units, where the watt (W) is the SI derived unit of power, and the second (s) is the SI base unit of time. It has been used historically in physics and engineering to quantify energy, especially in contexts where energy transfer occurs over short durations.
Current Use
The watt-second is primarily used in scientific and engineering contexts to measure small amounts of energy, such as in electrical and mechanical systems. It is often replaced by the joule in modern applications but remains a recognized unit within the energy converter category.
Millijoule
A millijoule (mJ) is a unit of energy equal to one thousandth of a joule, where 1 joule equals 1 newton meter or 1 kg·m²/s².
History/Origin
The millijoule is derived from the SI base unit joule, with the prefix 'milli' indicating a factor of 10⁻³. It has been used in scientific and engineering contexts to measure small amounts of energy, especially in fields like electronics and biomechanics.
Current Use
The millijoule is commonly used today to quantify small energy quantities in electronics, biomedical applications, and energy measurements where precision at a small scale is required.
Frequently Asked Questions
What is 1 watt-second in millijoule?
1 watt-second (W*s) = 1000 millijoule (mJ).
How do you convert watt-second to millijoule?
Multiply the watt-second value by 1000. For example, 25 W*s × 1000 = 25000 mJ.
What is 10 watt-second in millijoule?
10 W*s = 10000 mJ.
Which unit is larger, the watt-second or the millijoule?
The watt-second is the larger unit: 1 W*s = 1000 mJ.