Convert joules to kilocalories (J to kcal)

1 J = 0.000239005736 kcal. Joule (J), Kilocalorie (kcal). The exact factor, the formula and every value from 1 to 10,000.

=

How to convert joules to kilocalories

Multiply the value in J by 0.000239005736: the result is in kcal.

kcal = J × 0.000239005736The other way round, 1 kcal = 4,184 J.

Where these two units are used

The joule is one newton-meter and bears the name of James Joule, whose 1845 experiment showed that a falling weight and a burning flame do the same thing. The capital-C Calorie on American labels is a kilocalorie, a thousand physical calories: a bar listed at 200 Calories really holds 200,000 calories in the physicist's sense. A single kilocalorie is 4,184 joules, enough to hoist a 100 kilo person up four meters: the same energy reads tiny on a plate and considerable on a staircase.

Conversion table, joules to kilocalories

1 J0.000239 kcal
2 J0.000478 kcal
5 J0.001195 kcal
10 J0.0023901 kcal
20 J0.0047801 kcal
50 J0.0119503 kcal
100 J0.0239006 kcal
500 J0.1195029 kcal
1,000 J0.2390057 kcal
Show every value
  • 1 J = 0.000239 kcal
  • 2 J = 0.000478 kcal
  • 3 J = 0.000717 kcal
  • 4 J = 0.000956 kcal
  • 5 J = 0.001195 kcal
  • 6 J = 0.001434 kcal
  • 7 J = 0.001673 kcal
  • 8 J = 0.001912 kcal
  • 9 J = 0.0021511 kcal
  • 10 J = 0.0023901 kcal
  • 11 J = 0.0026291 kcal
  • 12 J = 0.0028681 kcal
  • 13 J = 0.0031071 kcal
  • 14 J = 0.0033461 kcal
  • 15 J = 0.0035851 kcal
  • 16 J = 0.0038241 kcal
  • 17 J = 0.0040631 kcal
  • 18 J = 0.0043021 kcal
  • 19 J = 0.0045411 kcal
  • 20 J = 0.0047801 kcal
  • 21 J = 0.0050191 kcal
  • 22 J = 0.0052581 kcal
  • 23 J = 0.0054971 kcal
  • 24 J = 0.0057361 kcal
  • 25 J = 0.0059751 kcal
  • 26 J = 0.0062141 kcal
  • 27 J = 0.0064532 kcal
  • 28 J = 0.0066922 kcal
  • 29 J = 0.0069312 kcal
  • 30 J = 0.0071702 kcal
  • 31 J = 0.0074092 kcal
  • 32 J = 0.0076482 kcal
  • 33 J = 0.0078872 kcal
  • 34 J = 0.0081262 kcal
  • 35 J = 0.0083652 kcal
  • 36 J = 0.0086042 kcal
  • 37 J = 0.0088432 kcal
  • 38 J = 0.0090822 kcal
  • 39 J = 0.0093212 kcal
  • 40 J = 0.0095602 kcal
  • 41 J = 0.0097992 kcal
  • 42 J = 0.0100382 kcal
  • 43 J = 0.0102772 kcal
  • 44 J = 0.0105163 kcal
  • 45 J = 0.0107553 kcal
  • 46 J = 0.0109943 kcal
  • 47 J = 0.0112333 kcal
  • 48 J = 0.0114723 kcal
  • 49 J = 0.0117113 kcal
  • 50 J = 0.0119503 kcal
  • 51 J = 0.0121893 kcal
  • 52 J = 0.0124283 kcal
  • 53 J = 0.0126673 kcal
  • 54 J = 0.0129063 kcal
  • 55 J = 0.0131453 kcal
  • 56 J = 0.0133843 kcal
  • 57 J = 0.0136233 kcal
  • 58 J = 0.0138623 kcal
  • 59 J = 0.0141013 kcal
  • 60 J = 0.0143403 kcal
  • 61 J = 0.0145793 kcal
  • 62 J = 0.0148184 kcal
  • 63 J = 0.0150574 kcal
  • 64 J = 0.0152964 kcal
  • 65 J = 0.0155354 kcal
  • 66 J = 0.0157744 kcal
  • 67 J = 0.0160134 kcal
  • 68 J = 0.0162524 kcal
  • 69 J = 0.0164914 kcal
  • 70 J = 0.0167304 kcal
  • 71 J = 0.0169694 kcal
  • 72 J = 0.0172084 kcal
  • 73 J = 0.0174474 kcal
  • 74 J = 0.0176864 kcal
  • 75 J = 0.0179254 kcal
  • 76 J = 0.0181644 kcal
  • 77 J = 0.0184034 kcal
  • 78 J = 0.0186424 kcal
  • 79 J = 0.0188815 kcal
  • 80 J = 0.0191205 kcal
  • 81 J = 0.0193595 kcal
  • 82 J = 0.0195985 kcal
  • 83 J = 0.0198375 kcal
  • 84 J = 0.0200765 kcal
  • 85 J = 0.0203155 kcal
  • 86 J = 0.0205545 kcal
  • 87 J = 0.0207935 kcal
  • 88 J = 0.0210325 kcal
  • 89 J = 0.0212715 kcal
  • 90 J = 0.0215105 kcal
  • 91 J = 0.0217495 kcal
  • 92 J = 0.0219885 kcal
  • 93 J = 0.0222275 kcal
  • 94 J = 0.0224665 kcal
  • 95 J = 0.0227055 kcal
  • 96 J = 0.0229446 kcal
  • 97 J = 0.0231836 kcal
  • 98 J = 0.0234226 kcal
  • 99 J = 0.0236616 kcal
  • 100 J = 0.0239006 kcal
  • 101 J = 0.0241396 kcal
  • 102 J = 0.0243786 kcal
  • 103 J = 0.0246176 kcal
  • 104 J = 0.0248566 kcal
  • 105 J = 0.0250956 kcal
  • 106 J = 0.0253346 kcal
  • 107 J = 0.0255736 kcal
  • 108 J = 0.0258126 kcal
  • 109 J = 0.0260516 kcal
  • 110 J = 0.0262906 kcal
  • 111 J = 0.0265296 kcal
  • 112 J = 0.0267686 kcal
  • 113 J = 0.0270076 kcal
  • 114 J = 0.0272467 kcal
  • 115 J = 0.0274857 kcal
  • 116 J = 0.0277247 kcal
  • 117 J = 0.0279637 kcal
  • 118 J = 0.0282027 kcal
  • 119 J = 0.0284417 kcal
  • 120 J = 0.0286807 kcal
  • 121 J = 0.0289197 kcal
  • 122 J = 0.0291587 kcal
  • 123 J = 0.0293977 kcal
  • 124 J = 0.0296367 kcal
  • 125 J = 0.0298757 kcal
  • 126 J = 0.0301147 kcal
  • 127 J = 0.0303537 kcal
  • 128 J = 0.0305927 kcal
  • 129 J = 0.0308317 kcal
  • 130 J = 0.0310707 kcal
  • 131 J = 0.0313098 kcal
  • 132 J = 0.0315488 kcal
  • 133 J = 0.0317878 kcal
  • 134 J = 0.0320268 kcal
  • 135 J = 0.0322658 kcal
  • 136 J = 0.0325048 kcal
  • 137 J = 0.0327438 kcal
  • 138 J = 0.0329828 kcal
  • 139 J = 0.0332218 kcal
  • 140 J = 0.0334608 kcal
  • 141 J = 0.0336998 kcal
  • 142 J = 0.0339388 kcal
  • 143 J = 0.0341778 kcal
  • 144 J = 0.0344168 kcal
  • 145 J = 0.0346558 kcal
  • 146 J = 0.0348948 kcal
  • 147 J = 0.0351338 kcal
  • 148 J = 0.0353728 kcal
  • 149 J = 0.0356119 kcal
  • 150 J = 0.0358509 kcal
  • 151 J = 0.0360899 kcal
  • 152 J = 0.0363289 kcal
  • 153 J = 0.0365679 kcal
  • 154 J = 0.0368069 kcal
  • 155 J = 0.0370459 kcal
  • 156 J = 0.0372849 kcal
  • 157 J = 0.0375239 kcal
  • 158 J = 0.0377629 kcal
  • 159 J = 0.0380019 kcal
  • 160 J = 0.0382409 kcal
  • 161 J = 0.0384799 kcal
  • 162 J = 0.0387189 kcal
  • 163 J = 0.0389579 kcal
  • 164 J = 0.0391969 kcal
  • 165 J = 0.0394359 kcal
  • 166 J = 0.039675 kcal
  • 167 J = 0.039914 kcal
  • 168 J = 0.040153 kcal
  • 169 J = 0.040392 kcal
  • 170 J = 0.040631 kcal
  • 171 J = 0.04087 kcal
  • 172 J = 0.041109 kcal
  • 173 J = 0.041348 kcal
  • 174 J = 0.041587 kcal
  • 175 J = 0.041826 kcal
  • 176 J = 0.042065 kcal
  • 177 J = 0.042304 kcal
  • 178 J = 0.042543 kcal
  • 179 J = 0.042782 kcal
  • 180 J = 0.043021 kcal
  • 181 J = 0.04326 kcal
  • 182 J = 0.043499 kcal
  • 183 J = 0.043738 kcal
  • 184 J = 0.0439771 kcal
  • 185 J = 0.0442161 kcal
  • 186 J = 0.0444551 kcal
  • 187 J = 0.0446941 kcal
  • 188 J = 0.0449331 kcal
  • 189 J = 0.0451721 kcal
  • 190 J = 0.0454111 kcal
  • 191 J = 0.0456501 kcal
  • 192 J = 0.0458891 kcal
  • 193 J = 0.0461281 kcal
  • 194 J = 0.0463671 kcal
  • 195 J = 0.0466061 kcal
  • 196 J = 0.0468451 kcal
  • 197 J = 0.0470841 kcal
  • 198 J = 0.0473231 kcal
  • 199 J = 0.0475621 kcal
  • 200 J = 0.0478011 kcal
  • 205 J = 0.0489962 kcal
  • 210 J = 0.0501912 kcal
  • 215 J = 0.0513862 kcal
  • 220 J = 0.0525813 kcal
  • 225 J = 0.0537763 kcal
  • 230 J = 0.0549713 kcal
  • 235 J = 0.0561663 kcal
  • 240 J = 0.0573614 kcal
  • 245 J = 0.0585564 kcal
  • 250 J = 0.0597514 kcal
  • 255 J = 0.0609465 kcal
  • 260 J = 0.0621415 kcal
  • 265 J = 0.0633365 kcal
  • 270 J = 0.0645315 kcal
  • 275 J = 0.0657266 kcal
  • 280 J = 0.0669216 kcal
  • 285 J = 0.0681166 kcal
  • 290 J = 0.0693117 kcal
  • 295 J = 0.0705067 kcal
  • 300 J = 0.0717017 kcal
  • 305 J = 0.0728967 kcal
  • 310 J = 0.0740918 kcal
  • 315 J = 0.0752868 kcal
  • 320 J = 0.0764818 kcal
  • 325 J = 0.0776769 kcal
  • 330 J = 0.0788719 kcal
  • 335 J = 0.0800669 kcal
  • 340 J = 0.081262 kcal
  • 345 J = 0.082457 kcal
  • 350 J = 0.083652 kcal
  • 355 J = 0.084847 kcal
  • 360 J = 0.0860421 kcal
  • 365 J = 0.0872371 kcal
  • 370 J = 0.0884321 kcal
  • 375 J = 0.0896272 kcal
  • 380 J = 0.0908222 kcal
  • 385 J = 0.0920172 kcal
  • 390 J = 0.0932122 kcal
  • 395 J = 0.0944073 kcal
  • 400 J = 0.0956023 kcal
  • 405 J = 0.0967973 kcal
  • 410 J = 0.0979924 kcal
  • 415 J = 0.0991874 kcal
  • 420 J = 0.1003824 kcal
  • 425 J = 0.1015774 kcal
  • 430 J = 0.1027725 kcal
  • 435 J = 0.1039675 kcal
  • 440 J = 0.1051625 kcal
  • 445 J = 0.1063576 kcal
  • 450 J = 0.1075526 kcal
  • 455 J = 0.1087476 kcal
  • 460 J = 0.1099426 kcal
  • 465 J = 0.1111377 kcal
  • 470 J = 0.1123327 kcal
  • 475 J = 0.1135277 kcal
  • 480 J = 0.1147228 kcal
  • 485 J = 0.1159178 kcal
  • 490 J = 0.1171128 kcal
  • 495 J = 0.1183078 kcal
  • 500 J = 0.1195029 kcal
  • 510 J = 0.1218929 kcal
  • 520 J = 0.124283 kcal
  • 530 J = 0.126673 kcal
  • 540 J = 0.1290631 kcal
  • 550 J = 0.1314532 kcal
  • 560 J = 0.1338432 kcal
  • 570 J = 0.1362333 kcal
  • 580 J = 0.1386233 kcal
  • 590 J = 0.1410134 kcal
  • 600 J = 0.1434034 kcal
  • 610 J = 0.1457935 kcal
  • 620 J = 0.1481836 kcal
  • 630 J = 0.1505736 kcal
  • 640 J = 0.1529637 kcal
  • 650 J = 0.1553537 kcal
  • 660 J = 0.1577438 kcal
  • 670 J = 0.1601338 kcal
  • 680 J = 0.1625239 kcal
  • 690 J = 0.164914 kcal
  • 700 J = 0.167304 kcal
  • 710 J = 0.1696941 kcal
  • 720 J = 0.1720841 kcal
  • 730 J = 0.1744742 kcal
  • 740 J = 0.1768642 kcal
  • 750 J = 0.1792543 kcal
  • 760 J = 0.1816444 kcal
  • 770 J = 0.1840344 kcal
  • 780 J = 0.1864245 kcal
  • 790 J = 0.1888145 kcal
  • 800 J = 0.1912046 kcal
  • 810 J = 0.1935946 kcal
  • 820 J = 0.1959847 kcal
  • 830 J = 0.1983748 kcal
  • 840 J = 0.2007648 kcal
  • 850 J = 0.2031549 kcal
  • 860 J = 0.2055449 kcal
  • 870 J = 0.207935 kcal
  • 880 J = 0.210325 kcal
  • 890 J = 0.2127151 kcal
  • 900 J = 0.2151052 kcal
  • 910 J = 0.2174952 kcal
  • 920 J = 0.2198853 kcal
  • 930 J = 0.2222753 kcal
  • 940 J = 0.2246654 kcal
  • 950 J = 0.2270554 kcal
  • 960 J = 0.2294455 kcal
  • 970 J = 0.2318356 kcal
  • 980 J = 0.2342256 kcal
  • 990 J = 0.2366157 kcal
  • 1,000 J = 0.2390057 kcal
  • 1,025 J = 0.2449809 kcal
  • 1,050 J = 0.250956 kcal
  • 1,075 J = 0.2569312 kcal
  • 1,100 J = 0.2629063 kcal
  • 1,125 J = 0.2688815 kcal
  • 1,150 J = 0.2748566 kcal
  • 1,175 J = 0.2808317 kcal
  • 1,200 J = 0.2868069 kcal
  • 1,225 J = 0.292782 kcal
  • 1,250 J = 0.2987572 kcal
  • 1,275 J = 0.3047323 kcal
  • 1,300 J = 0.3107075 kcal
  • 1,325 J = 0.3166826 kcal
  • 1,350 J = 0.3226577 kcal
  • 1,375 J = 0.3286329 kcal
  • 1,400 J = 0.334608 kcal
  • 1,425 J = 0.3405832 kcal
  • 1,450 J = 0.3465583 kcal
  • 1,475 J = 0.3525335 kcal
  • 1,500 J = 0.3585086 kcal
  • 1,525 J = 0.3644837 kcal
  • 1,550 J = 0.3704589 kcal
  • 1,575 J = 0.376434 kcal
  • 1,600 J = 0.3824092 kcal
  • 1,625 J = 0.3883843 kcal
  • 1,650 J = 0.3943595 kcal
  • 1,675 J = 0.4003346 kcal
  • 1,700 J = 0.4063098 kcal
  • 1,725 J = 0.4122849 kcal
  • 1,750 J = 0.41826 kcal
  • 1,775 J = 0.4242352 kcal
  • 1,800 J = 0.4302103 kcal
  • 1,825 J = 0.4361855 kcal
  • 1,850 J = 0.4421606 kcal
  • 1,875 J = 0.4481358 kcal
  • 1,900 J = 0.4541109 kcal
  • 1,925 J = 0.460086 kcal
  • 1,950 J = 0.4660612 kcal
  • 1,975 J = 0.4720363 kcal
  • 2,000 J = 0.4780115 kcal
  • 2,050 J = 0.4899618 kcal
  • 2,100 J = 0.501912 kcal
  • 2,150 J = 0.5138623 kcal
  • 2,200 J = 0.5258126 kcal
  • 2,250 J = 0.5377629 kcal
  • 2,300 J = 0.5497132 kcal
  • 2,350 J = 0.5616635 kcal
  • 2,400 J = 0.5736138 kcal
  • 2,450 J = 0.5855641 kcal
  • 2,500 J = 0.5975143 kcal
  • 2,550 J = 0.6094646 kcal
  • 2,600 J = 0.6214149 kcal
  • 2,650 J = 0.6333652 kcal
  • 2,700 J = 0.6453155 kcal
  • 2,750 J = 0.6572658 kcal
  • 2,800 J = 0.6692161 kcal
  • 2,850 J = 0.6811663 kcal
  • 2,900 J = 0.6931166 kcal
  • 2,950 J = 0.7050669 kcal
  • 3,000 J = 0.7170172 kcal
  • 3,050 J = 0.7289675 kcal
  • 3,100 J = 0.7409178 kcal
  • 3,150 J = 0.7528681 kcal
  • 3,200 J = 0.7648184 kcal
  • 3,250 J = 0.7767686 kcal
  • 3,300 J = 0.7887189 kcal
  • 3,350 J = 0.8006692 kcal
  • 3,400 J = 0.8126195 kcal
  • 3,450 J = 0.8245698 kcal
  • 3,500 J = 0.8365201 kcal
  • 3,550 J = 0.8484704 kcal
  • 3,600 J = 0.8604207 kcal
  • 3,650 J = 0.8723709 kcal
  • 3,700 J = 0.8843212 kcal
  • 3,750 J = 0.8962715 kcal
  • 3,800 J = 0.9082218 kcal
  • 3,850 J = 0.9201721 kcal
  • 3,900 J = 0.9321224 kcal
  • 3,950 J = 0.9440727 kcal
  • 4,000 J = 0.9560229 kcal
  • 4,050 J = 0.9679732 kcal
  • 4,100 J = 0.9799235 kcal
  • 4,150 J = 0.9918738 kcal
  • 4,200 J = 1.0038241 kcal
  • 4,250 J = 1.0157744 kcal
  • 4,300 J = 1.0277247 kcal
  • 4,350 J = 1.039675 kcal
  • 4,400 J = 1.0516252 kcal
  • 4,450 J = 1.0635755 kcal
  • 4,500 J = 1.0755258 kcal
  • 4,550 J = 1.0874761 kcal
  • 4,600 J = 1.0994264 kcal
  • 4,650 J = 1.1113767 kcal
  • 4,700 J = 1.123327 kcal
  • 4,750 J = 1.1352772 kcal
  • 4,800 J = 1.1472275 kcal
  • 4,850 J = 1.1591778 kcal
  • 4,900 J = 1.1711281 kcal
  • 4,950 J = 1.1830784 kcal
  • 5,000 J = 1.1950287 kcal
  • 5,100 J = 1.2189293 kcal
  • 5,200 J = 1.2428298 kcal
  • 5,300 J = 1.2667304 kcal
  • 5,400 J = 1.290631 kcal
  • 5,500 J = 1.3145315 kcal
  • 5,600 J = 1.3384321 kcal
  • 5,700 J = 1.3623327 kcal
  • 5,800 J = 1.3862333 kcal
  • 5,900 J = 1.4101338 kcal
  • 6,000 J = 1.4340344 kcal
  • 6,100 J = 1.457935 kcal
  • 6,200 J = 1.4818356 kcal
  • 6,300 J = 1.5057361 kcal
  • 6,400 J = 1.5296367 kcal
  • 6,500 J = 1.5535373 kcal
  • 6,600 J = 1.5774379 kcal
  • 6,700 J = 1.6013384 kcal
  • 6,800 J = 1.625239 kcal
  • 6,900 J = 1.6491396 kcal
  • 7,000 J = 1.6730402 kcal
  • 7,100 J = 1.6969407 kcal
  • 7,200 J = 1.7208413 kcal
  • 7,300 J = 1.7447419 kcal
  • 7,400 J = 1.7686424 kcal
  • 7,500 J = 1.792543 kcal
  • 7,600 J = 1.8164436 kcal
  • 7,700 J = 1.8403442 kcal
  • 7,800 J = 1.8642447 kcal
  • 7,900 J = 1.8881453 kcal
  • 8,000 J = 1.9120459 kcal
  • 8,100 J = 1.9359465 kcal
  • 8,200 J = 1.959847 kcal
  • 8,300 J = 1.9837476 kcal
  • 8,400 J = 2.0076482 kcal
  • 8,500 J = 2.0315488 kcal
  • 8,600 J = 2.0554493 kcal
  • 8,700 J = 2.0793499 kcal
  • 8,800 J = 2.1032505 kcal
  • 8,900 J = 2.1271511 kcal
  • 9,000 J = 2.1510516 kcal
  • 9,100 J = 2.1749522 kcal
  • 9,200 J = 2.1988528 kcal
  • 9,300 J = 2.2227533 kcal
  • 9,400 J = 2.2466539 kcal
  • 9,500 J = 2.2705545 kcal
  • 9,600 J = 2.2944551 kcal
  • 9,700 J = 2.3183556 kcal
  • 9,800 J = 2.3422562 kcal
  • 9,900 J = 2.3661568 kcal
  • 10,000 J = 2.3900574 kcal

Factors from the SI brochure (BIPM) and from NIST Special Publication 811. Methodology & sources.

Related conversions

Kilocalories to joules Energy kilocalories to kilojoules (kcal to kJ) kJ to kcal kilojoules to kilowatt-hours (kJ to kWh) kilowatt-hours to kilojoules (kWh to kJ) Kilowatt-hours to joules Kilowatt-hours to kilocalories Kilowatt-hours to watt-hours