| yottajoule | 1 YJ | 2 YJ | 3 YJ | 4 YJ | 5 YJ | 6 YJ | 7 YJ | 8 YJ | 9 YJ | 10 YJ | 11 YJ | 12 YJ | 13 YJ | 14 YJ | 15 YJ | 16 YJ | 17 YJ | 18 YJ | 19 YJ | 20 YJ | 21 YJ | 22 YJ | 23 YJ | 24 YJ | 25 YJ | 26 YJ | 27 YJ | 28 YJ | 29 YJ | 30 YJ | 31 YJ | 32 YJ | 33 YJ | 34 YJ | 35 YJ | 36 YJ | 37 YJ | 38 YJ | 39 YJ | 40 YJ | 41 YJ | 42 YJ | 43 YJ | 44 YJ | 45 YJ | 46 YJ | 47 YJ | 48 YJ | 49 YJ | 50 YJ | 51 YJ | 52 YJ | 53 YJ | 54 YJ | 55 YJ | 56 YJ | 57 YJ | 58 YJ | 59 YJ | 60 YJ | 61 YJ | 62 YJ | 63 YJ | 64 YJ | 65 YJ | 66 YJ | 67 YJ | 68 YJ | 69 YJ | 70 YJ | 71 YJ | 72 YJ | 73 YJ | 74 YJ | 75 YJ | 76 YJ | 77 YJ | 78 YJ | 79 YJ | 80 YJ | 81 YJ | 82 YJ | 83 YJ | 84 YJ | 85 YJ | 86 YJ | 87 YJ | 88 YJ | 89 YJ | 90 YJ | 91 YJ | 92 YJ | 93 YJ | 94 YJ | 95 YJ | 96 YJ | 97 YJ | 98 YJ | 99 YJ | 100 YJ |
| horsepower-hour | 3.7250613599864 × 1017 hp·h | 7.4501227199729 × 1017 hp·h | 1.1175184079959 × 1018 hp·h | 1.4900245439946 × 1018 hp·h | 1.8625306799932 × 1018 hp·h | 2.2350368159919 × 1018 hp·h | 2.6075429519905 × 1018 hp·h | 2.9800490879891 × 1018 hp·h | 3.3525552239878 × 1018 hp·h | 3.7250613599864 × 1018 hp·h | 4.0975674959851 × 1018 hp·h | 4.4700736319837 × 1018 hp·h | 4.8425797679824 × 1018 hp·h | 5.215085903981 × 1018 hp·h | 5.5875920399796 × 1018 hp·h | 5.9600981759783 × 1018 hp·h | 6.3326043119769 × 1018 hp·h | 6.7051104479756 × 1018 hp·h | 7.0776165839742 × 1018 hp·h | 7.4501227199729 × 1018 hp·h | 7.8226288559715 × 1018 hp·h | 8.1951349919701 × 1018 hp·h | 8.5676411279688 × 1018 hp·h | 8.9401472639674 × 1018 hp·h | 9.3126533999661 × 1018 hp·h | 9.6851595359647 × 1018 hp·h | 1.0057665671963 × 1019 hp·h | 1.0430171807962 × 1019 hp·h | 1.0802677943961 × 1019 hp·h | 1.1175184079959 × 1019 hp·h | 1.1547690215958 × 1019 hp·h | 1.1920196351957 × 1019 hp·h | 1.2292702487955 × 1019 hp·h | 1.2665208623954 × 1019 hp·h | 1.3037714759952 × 1019 hp·h | 1.3410220895951 × 1019 hp·h | 1.378272703195 × 1019 hp·h | 1.4155233167948 × 1019 hp·h | 1.4527739303947 × 1019 hp·h | 1.4900245439946 × 1019 hp·h | 1.5272751575944 × 1019 hp·h | 1.5645257711943 × 1019 hp·h | 1.6017763847942 × 1019 hp·h | 1.639026998394 × 1019 hp·h | 1.6762776119939 × 1019 hp·h | 1.7135282255938 × 1019 hp·h | 1.7507788391936 × 1019 hp·h | 1.7880294527935 × 1019 hp·h | 1.8252800663933 × 1019 hp·h | 1.8625306799932 × 1019 hp·h | 1.8997812935931 × 1019 hp·h | 1.9370319071929 × 1019 hp·h | 1.9742825207928 × 1019 hp·h | 2.0115331343927 × 1019 hp·h | 2.0487837479925 × 1019 hp·h | 2.0860343615924 × 1019 hp·h | 2.1232849751923 × 1019 hp·h | 2.1605355887921 × 1019 hp·h | 2.197786202392 × 1019 hp·h | 2.2350368159919 × 1019 hp·h | 2.2722874295917 × 1019 hp·h | 2.3095380431916 × 1019 hp·h | 2.3467886567914 × 1019 hp·h | 2.3840392703913 × 1019 hp·h | 2.4212898839912 × 1019 hp·h | 2.458540497591 × 1019 hp·h | 2.4957911111909 × 1019 hp·h | 2.5330417247908 × 1019 hp·h | 2.5702923383906 × 1019 hp·h | 2.6075429519905 × 1019 hp·h | 2.6447935655904 × 1019 hp·h | 2.6820441791902 × 1019 hp·h | 2.7192947927901 × 1019 hp·h | 2.75654540639 × 1019 hp·h | 2.7937960199898 × 1019 hp·h | 2.8310466335897 × 1019 hp·h | 2.8682972471895 × 1019 hp·h | 2.9055478607894 × 1019 hp·h | 2.9427984743893 × 1019 hp·h | 2.9800490879891 × 1019 hp·h | 3.017299701589 × 1019 hp·h | 3.0545503151889 × 1019 hp·h | 3.0918009287887 × 1019 hp·h | 3.1290515423886 × 1019 hp·h | 3.1663021559885 × 1019 hp·h | 3.2035527695883 × 1019 hp·h | 3.2408033831882 × 1019 hp·h | 3.2780539967881 × 1019 hp·h | 3.3153046103879 × 1019 hp·h | 3.3525552239878 × 1019 hp·h | 3.3898058375876 × 1019 hp·h | 3.4270564511875 × 1019 hp·h | 3.4643070647874 × 1019 hp·h | 3.5015576783872 × 1019 hp·h | 3.5388082919871 × 1019 hp·h | 3.576058905587 × 1019 hp·h | 3.6133095191868 × 1019 hp·h | 3.6505601327867 × 1019 hp·h | 3.6878107463866 × 1019 hp·h | 3.7250613599864 × 1019 hp·h |
The yottajoule (YJ) is equal to one septillion (1024) joules. This is approximately the amount of energy required to heat all the water on Earth by 1 °C. The thermal output of the Sun is approximately 400 YJ per second.
| 1 yottajoules = 3.7250613599864E+17 horsepower-hours | 6 yottajoules = 2.2350368159919E+18 horsepower-hours |
| 2 yottajoules = 7.4501227199729E+17 horsepower-hours | 7 yottajoules = 2.6075429519905E+18 horsepower-hours |
| 3 yottajoules = 1.1175184079959E+18 horsepower-hours | 8 yottajoules = 2.9800490879891E+18 horsepower-hours |
| 4 yottajoules = 1.4900245439946E+18 horsepower-hours | 9 yottajoules = 3.3525552239878E+18 horsepower-hours |
| 5 yottajoules = 1.8625306799932E+18 horsepower-hours | 10 yottajoules = 3.7250613599864E+18 horsepower-hours |
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):
| 1 horsepower-hours = 2.684519537696E-18 yottajoules | 6 horsepower-hours = 1.6107117226176E-17 yottajoules |
| 2 horsepower-hours = 5.369039075392E-18 yottajoules | 7 horsepower-hours = 1.8791636763872E-17 yottajoules |
| 3 horsepower-hours = 8.053558613088E-18 yottajoules | 8 horsepower-hours = 2.1476156301568E-17 yottajoules |
| 4 horsepower-hours = 1.0738078150784E-17 yottajoules | 9 horsepower-hours = 2.4160675839264E-17 yottajoules |
| 5 horsepower-hours = 1.342259768848E-17 yottajoules | 10 horsepower-hours = 2.684519537696E-17 yottajoules |
| 1 yottajoules = 3.7250613599864 × 1017 horsepower-hours |
| 1 horsepower-hours = 2.684519537696 × 10-18 yottajoules |