Convert horsepower hour to millijoule
Please provide values below to convert horsepower hour [hp*h] to millijoule [mJ], or Convert millijoule to horsepower hour.
1 hp*h = 2684519540 mJ. To convert horsepower hour to millijoule, multiply the value by 2684519540; to go the other way, divide by it (1 mJ = 3.7251e-10 hp*h). Both units measure energy and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 hp*h = 2684519540 mJ
- 1 mJ = 3.7251e-10 hp*h
- 10 hp*h = 26845195400 mJ
- 100 hp*h = 268451954000 mJ
How to Convert Horsepower Hour to Millijoule
1 hp*h = 2684519540 mJ
Example: convert 15 hp*h to mJ:
15 hp*h = 15 × 2684519540 mJ = 40267793100 mJ
Horsepower Hour to Millijoule Conversion Table
| horsepower hour | millijoule |
|---|---|
| 1 hp*h | 2684519540 mJ |
| 2 hp*h | 5369039080 mJ |
| 3 hp*h | 8053558620 mJ |
| 5 hp*h | 13422597700 mJ |
| 10 hp*h | 26845195400 mJ |
| 20 hp*h | 53690390800 mJ |
| 50 hp*h | 134225977000 mJ |
| 100 hp*h | 268451954000 mJ |
| 500 hp*h | 1.3423e+12 mJ |
| 1000 hp*h | 2.6845e+12 mJ |
Horsepower Hour
A horsepower hour (hp*h) is a unit of energy representing the amount of energy equivalent to one horsepower of power sustained over one hour of time.
History/Origin
The horsepower hour originated from the traditional unit of horsepower used to quantify engine power, combined with the hour to measure energy consumption or production over time. It has been used primarily in engineering and energy industries to express energy usage or capacity.
Current Use
Today, the horsepower hour is rarely used in practical applications, having been largely replaced by the joule and other SI units. However, it may still be referenced in historical data, legacy systems, or specific industries dealing with older measurement standards within the energy and mechanical sectors.
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 horsepower hour in millijoule?
1 horsepower hour (hp*h) = 2684519540 millijoule (mJ).
How do you convert horsepower hour to millijoule?
Multiply the horsepower hour value by 2684519540. For example, 25 hp*h × 2684519540 = 67112988500 mJ.
What is 10 horsepower hour in millijoule?
10 hp*h = 26845195400 mJ.
Which unit is larger, the horsepower hour or the millijoule?
The horsepower hour is the larger unit: 1 hp*h = 2684519540 mJ.