Convert calorie to watt-hour
1 cal = 0.001162222222 Wh
1 cal = 0.0011622 Wh
1 cal in every energy unit
| electron volt | 2.6114e+19 eV |
| hartree | 9.5969e+17 Eh |
| kiloelectron volt | 2.6114e+16 keV |
| megaelectron volt | 26,114,000,000,000 MeV |
| gigaelectron volt | 26,114,000,000 GeV |
| nanojoule | 4,184,000,000 nJ |
| erg | 41,840,000 erg |
| teraelectron volt | 26,114,000 TeV |
| microjoule | 4,184,000 µJ |
| millijoule | 4,184 mJ |
| inch-pound | 37.032 in·lb |
| joule | 4.184 J |
| foot-pound | 3.086 ft⋅lb |
| calorie | 1 cal |
| calorie (International Table) | 0.99933 cal IT |
| kilojoule | 0.004184 kJ |
| BTU (thermochemical) | 0.0039683 BTU th |
| British thermal unit | 0.0039657 BTU |
| watt-hour | 0.0011622 Wh |
| kilocalorie | 0.001 kcal |
| megajoule | 0.000004184 MJ |
| horsepower-hour | 0.0000015586 hp·h |
| kilowatt-hour | 0.0000011622 kWh |
| therm | 3.9657e-08 therm |
| gigajoule | 4.1840e-09 GJ |
| million BTU | 3.9657e-09 MMBTU |
| megawatt-hour | 1.1622e-09 MWh |
| ton of TNT | 1.0000e-09 t TNT |
| tonne of oil equivalent | 9.9933e-11 toe |
| terajoule | 4.1840e-12 TJ |
| gigawatt-hour | 1.1622e-12 GWh |
| kiloton of TNT | 1.0000e-12 kt TNT |
| petajoule | 4.1840e-15 PJ |
| terawatt-hour | 1.1622e-15 TWh |
| megaton of TNT | 1.0000e-15 Mt TNT |
| quad | 3.9657e-18 quad |
How the conversion works
Multiply by 0.001162222222 to go from calorie to watt-hour, or divide by it to go back. Every conversion on this site routes through the SI value (J) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? watt-hour to calorie — 1 Wh = 860.4206501 cal.
calorie to watt-hour — common values
| 1 cal | 0.0011622222 Wh |
| 2 cal | 0.0023244444 Wh |
| 3 cal | 0.0034866667 Wh |
| 5 cal | 0.0058111111 Wh |
| 10 cal | 0.011622222 Wh |
| 15 cal | 0.017433333 Wh |
| 20 cal | 0.023244444 Wh |
| 25 cal | 0.029055556 Wh |
| 50 cal | 0.058111111 Wh |
| 75 cal | 0.087166667 Wh |
| 100 cal | 0.11622222 Wh |
| 250 cal | 0.29055556 Wh |
| 500 cal | 0.58111111 Wh |
| 1000 cal | 1.1622222 Wh |