horsepower-hour | 1 hp·h | 2 hp·h | 3 hp·h | 4 hp·h | 5 hp·h | 6 hp·h | 7 hp·h | 8 hp·h | 9 hp·h | 10 hp·h | 11 hp·h | 12 hp·h | 13 hp·h | 14 hp·h | 15 hp·h | 16 hp·h | 17 hp·h | 18 hp·h | 19 hp·h | 20 hp·h | 21 hp·h | 22 hp·h | 23 hp·h | 24 hp·h | 25 hp·h | 26 hp·h | 27 hp·h | 28 hp·h | 29 hp·h | 30 hp·h | 31 hp·h | 32 hp·h | 33 hp·h | 34 hp·h | 35 hp·h | 36 hp·h | 37 hp·h | 38 hp·h | 39 hp·h | 40 hp·h | 41 hp·h | 42 hp·h | 43 hp·h | 44 hp·h | 45 hp·h | 46 hp·h | 47 hp·h | 48 hp·h | 49 hp·h | 50 hp·h | 51 hp·h | 52 hp·h | 53 hp·h | 54 hp·h | 55 hp·h | 56 hp·h | 57 hp·h | 58 hp·h | 59 hp·h | 60 hp·h | 61 hp·h | 62 hp·h | 63 hp·h | 64 hp·h | 65 hp·h | 66 hp·h | 67 hp·h | 68 hp·h | 69 hp·h | 70 hp·h | 71 hp·h | 72 hp·h | 73 hp·h | 74 hp·h | 75 hp·h | 76 hp·h | 77 hp·h | 78 hp·h | 79 hp·h | 80 hp·h | 81 hp·h | 82 hp·h | 83 hp·h | 84 hp·h | 85 hp·h | 86 hp·h | 87 hp·h | 88 hp·h | 89 hp·h | 90 hp·h | 91 hp·h | 92 hp·h | 93 hp·h | 94 hp·h | 95 hp·h | 96 hp·h | 97 hp·h | 98 hp·h | 99 hp·h | 100 hp·h |
exajoule | 2.684519537696 × 10-12 EJ | 5.369039075392 × 10-12 EJ | 8.053558613088 × 10-12 EJ | 1.0738078150784 × 10-11 EJ | 1.342259768848 × 10-11 EJ | 1.6107117226176 × 10-11 EJ | 1.8791636763872 × 10-11 EJ | 2.1476156301568 × 10-11 EJ | 2.4160675839264 × 10-11 EJ | 2.684519537696 × 10-11 EJ | 2.9529714914656 × 10-11 EJ | 3.2214234452352 × 10-11 EJ | 3.4898753990048 × 10-11 EJ | 3.7583273527744 × 10-11 EJ | 4.026779306544 × 10-11 EJ | 4.2952312603136 × 10-11 EJ | 4.5636832140832 × 10-11 EJ | 4.8321351678528 × 10-11 EJ | 5.1005871216224 × 10-11 EJ | 5.369039075392 × 10-11 EJ | 5.6374910291616 × 10-11 EJ | 5.9059429829312 × 10-11 EJ | 6.1743949367008 × 10-11 EJ | 6.4428468904704 × 10-11 EJ | 6.71129884424 × 10-11 EJ | 6.9797507980096 × 10-11 EJ | 7.2482027517792 × 10-11 EJ | 7.5166547055488 × 10-11 EJ | 7.7851066593184 × 10-11 EJ | 8.053558613088 × 10-11 EJ | 8.3220105668576 × 10-11 EJ | 8.5904625206272 × 10-11 EJ | 8.8589144743968 × 10-11 EJ | 9.1273664281664 × 10-11 EJ | 9.395818381936 × 10-11 EJ | 9.6642703357056 × 10-11 EJ | 9.9327222894752 × 10-11 EJ | 1.0201174243245 × 10-10 EJ | 1.0469626197014 × 10-10 EJ | 1.0738078150784 × 10-10 EJ | 1.1006530104554 × 10-10 EJ | 1.1274982058323 × 10-10 EJ | 1.1543434012093 × 10-10 EJ | 1.1811885965862 × 10-10 EJ | 1.2080337919632 × 10-10 EJ | 1.2348789873402 × 10-10 EJ | 1.2617241827171 × 10-10 EJ | 1.2885693780941 × 10-10 EJ | 1.315414573471 × 10-10 EJ | 1.342259768848 × 10-10 EJ | 1.369104964225 × 10-10 EJ | 1.3959501596019 × 10-10 EJ | 1.4227953549789 × 10-10 EJ | 1.4496405503558 × 10-10 EJ | 1.4764857457328 × 10-10 EJ | 1.5033309411098 × 10-10 EJ | 1.5301761364867 × 10-10 EJ | 1.5570213318637 × 10-10 EJ | 1.5838665272406 × 10-10 EJ | 1.6107117226176 × 10-10 EJ | 1.6375569179946 × 10-10 EJ | 1.6644021133715 × 10-10 EJ | 1.6912473087485 × 10-10 EJ | 1.7180925041254 × 10-10 EJ | 1.7449376995024 × 10-10 EJ | 1.7717828948794 × 10-10 EJ | 1.7986280902563 × 10-10 EJ | 1.8254732856333 × 10-10 EJ | 1.8523184810102 × 10-10 EJ | 1.8791636763872 × 10-10 EJ | 1.9060088717642 × 10-10 EJ | 1.9328540671411 × 10-10 EJ | 1.9596992625181 × 10-10 EJ | 1.986544457895 × 10-10 EJ | 2.013389653272 × 10-10 EJ | 2.040234848649 × 10-10 EJ | 2.0670800440259 × 10-10 EJ | 2.0939252394029 × 10-10 EJ | 2.1207704347798 × 10-10 EJ | 2.1476156301568 × 10-10 EJ | 2.1744608255338 × 10-10 EJ | 2.2013060209107 × 10-10 EJ | 2.2281512162877 × 10-10 EJ | 2.2549964116646 × 10-10 EJ | 2.2818416070416 × 10-10 EJ | 2.3086868024186 × 10-10 EJ | 2.3355319977955 × 10-10 EJ | 2.3623771931725 × 10-10 EJ | 2.3892223885494 × 10-10 EJ | 2.4160675839264 × 10-10 EJ | 2.4429127793034 × 10-10 EJ | 2.4697579746803 × 10-10 EJ | 2.4966031700573 × 10-10 EJ | 2.5234483654342 × 10-10 EJ | 2.5502935608112 × 10-10 EJ | 2.5771387561882 × 10-10 EJ | 2.6039839515651 × 10-10 EJ | 2.6308291469421 × 10-10 EJ | 2.657674342319 × 10-10 EJ | 2.684519537696 × 10-10 EJ |
A horsepower-hour (hph) is an outdated unit of energy, not used in the SI system of units. The unit represents an amount of work a horse is supposed capable of delivering during an hour (1 (one) horsepower integrated over a time interval of an hour). Based on differences in the definition of what constitutes the 'power of a horse', a horsepower-hour differs slightly from the German "Pferdestärkenstunde" (PSh):
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
horsepower-hour | hp·h | ≡ 1 hp × 1 h | = 2.684519537696172792×106 J | Metric system Non-SI |
horsepower-hours | exajoules | horsepower-hours | exajoules |
---|---|---|---|
1 | = 2.684519537696E-12 | 6 | = 1.6107117226176E-11 |
2 | = 5.369039075392E-12 | 7 | = 1.8791636763872E-11 |
3 | = 8.053558613088E-12 | 8 | = 2.1476156301568E-11 |
4 | = 1.0738078150784E-11 | 9 | = 2.4160675839264E-11 |
5 | = 1.342259768848E-11 | 10 | = 2.684519537696E-11 |
The exajoule (EJ) is equal to 1018 (one quintillion) joules. The 2011 Tōhoku earthquake and tsunami in Japan had 1.41 EJ of energy according to its rating of 9.0 on the moment magnitude scale. Yearly U.S. energy consumption amounts to roughly 94 EJ.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
exajoule | EJ | = 1018 joule | = 1018 joule | Metric system SI |
exajoules | horsepower-hours | exajoules | horsepower-hours |
---|---|---|---|
1 | = 372506135998.64 | 6 | = 2235036815991.9 |
2 | = 745012271997.29 | 7 | = 2607542951990.5 |
3 | = 1117518407995.9 | 8 | = 2980049087989.1 |
4 | = 1490024543994.6 | 9 | = 3352555223987.8 |
5 | = 1862530679993.2 | 10 | = 3725061359986.4 |
horsepower-hours | exajoules |
---|---|
1 | = 2.684519537696 × 10-12 |
372,506,135,998.64 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |