千卡
大卡即为千卡（kilocalorie，简写为kcal），是国际热量单位。1千卡等于1000卡，是1千克的水温度升高1℃所需的热量。
焦
焦耳（简称焦，符号为J），是能量和做功的国际单位。1焦耳能量相等于1牛顿力的作用点在力的方向上移动1米距离所做的功 。
千卡转焦换算表
千卡 (kcal)焦 (J)
0.1 kcal418.585182 J
0.5 kcal2092.92591 J
1 kcal4185.851821 J
1.5 kcal6278.777731 J
2 kcal8371.703642 J
3 kcal12557.555463 J
4 kcal16743.407283 J
5 kcal20929.259104 J
6 kcal25115.110925 J
7 kcal29300.962746 J
8 kcal33486.814567 J
9 kcal37672.666388 J
10 kcal41858.518209 J
11 kcal46044.370029 J
12 kcal50230.22185 J
13 kcal54416.073671 J
14 kcal58601.925492 J
15 kcal62787.777313 J
16 kcal66973.629134 J
17 kcal71159.480954 J
18 kcal75345.332775 J
19 kcal79531.184596 J
20 kcal83717.036417 J
25 kcal104646.295521 J
30 kcal125575.554626 J
35 kcal146504.81373 J
40 kcal167434.072834 J
45 kcal188363.331938 J
50 kcal209292.591043 J
千卡 (kcal)焦 (J)
55 kcal230221.850147 J
60 kcal251151.109251 J
65 kcal272080.368355 J
70 kcal293009.62746 J
75 kcal313938.886564 J
80 kcal334868.145668 J
85 kcal355797.404772 J
90 kcal376726.663877 J
95 kcal397655.922981 J
100 kcal418585.182085 J
150 kcal627877.773128 J
200 kcal837170.36417 J
250 kcal1046462.955213 J
300 kcal1255755.546255 J
350 kcal1465048.137298 J
400 kcal1674340.72834 J
450 kcal1883633.319383 J
500 kcal2092925.910425 J
550 kcal2302218.501468 J
600 kcal2511511.09251 J
650 kcal2720803.683553 J
700 kcal2930096.274595 J
750 kcal3139388.865638 J
800 kcal3348681.45668 J
850 kcal3557974.047723 J
900 kcal3767266.638765 J
950 kcal3976559.229808 J
1000 kcal4185851.82085 J
5000 kcal20929259.10425 J