Convert joule/hour to millijoule/second
Please provide values below to convert joule/hour [J/h] to millijoule/second [mJ/s], or Convert millijoule/second to joule/hour.
1 J/h = 0.277778 mJ/s. To convert joule/hour to millijoule/second, multiply the value by 0.277778; to go the other way, divide by it (1 mJ/s = 3.59999712 J/h). Both units measure power and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 J/h = 0.277778 mJ/s
- 1 mJ/s = 3.59999712 J/h
- 10 J/h = 2.77778 mJ/s
- 100 J/h = 27.7778 mJ/s
How to Convert Joule/hour to Millijoule/second
1 J/h = 0.277778 mJ/s
Example: convert 15 J/h to mJ/s:
15 J/h = 15 × 0.277778 mJ/s = 4.16667 mJ/s
Joule/hour to Millijoule/second Conversion Table
| joule/hour | millijoule/second |
|---|---|
| 1 J/h | 0.277778 mJ/s |
| 2 J/h | 0.555556 mJ/s |
| 3 J/h | 0.833334 mJ/s |
| 5 J/h | 1.38889 mJ/s |
| 10 J/h | 2.77778 mJ/s |
| 20 J/h | 5.55556 mJ/s |
| 50 J/h | 13.8889 mJ/s |
| 100 J/h | 27.7778 mJ/s |
| 500 J/h | 138.889 mJ/s |
| 1000 J/h | 277.778 mJ/s |
Joule/hour
A joule per hour (J/h) is a unit of power representing the amount of energy (in joules) transferred or converted per hour.
History/Origin
The joule per hour has been used as a measure of power in various scientific and engineering contexts, especially where energy transfer rates are expressed over longer periods. It is derived from the SI unit of energy, the joule, divided by time in hours.
Current Use
Joule per hour is occasionally used in fields like heating, energy consumption, and industrial processes to quantify power over extended durations, though it is less common than watts for standard power measurements.
Millijoule/second
A millijoule per second (mJ/s) is a unit of power equivalent to one millijoule of energy transferred or converted every second.
History/Origin
The unit derives from the joule, the SI unit of energy, and the second, the SI unit of time. It has been used in contexts requiring small power measurements, especially in scientific and engineering applications, with the millijoule being a submultiple of the joule.
Current Use
Millijoule per second is used to measure small power levels in scientific experiments, electronics, and other fields where precise, small-scale power measurement is necessary, often within the context of energy transfer or consumption rates.
Frequently Asked Questions
What is 1 joule/hour in millijoule/second?
1 joule/hour (J/h) = 0.277778 millijoule/second (mJ/s).
How do you convert joule/hour to millijoule/second?
Multiply the joule/hour value by 0.277778. For example, 25 J/h × 0.277778 = 6.94445 mJ/s.
What is 10 joule/hour in millijoule/second?
10 J/h = 2.77778 mJ/s.
Which unit is larger, the joule/hour or the millijoule/second?
The millijoule/second is the larger unit: 1 J/h equals only 0.277778 mJ/s.