40卡等於多少千卡？卡（亦稱“卡”，符號為：cal）和千卡（亦稱“千卡”，符號為：kcal）是能量單位，它們之間的換算關係是：1卡等於0.001千卡。要將40卡轉換為千卡，我們可以透過卡與千卡換算比率來計算：
40 卡 = 40 * 0.001 千卡 = 0.04 千卡
因此，40卡換算成千卡的答案是40卡等於0.04千卡。
了解更多：40千卡等於多少卡? | 1卡等於幾千卡? | 1千卡等於幾卡?
| 卡 (cal) | 千卡 (kcal) |
|---|---|
| 40.1 cal | 0.0401 kcal |
| 40.2 cal | 0.0402 kcal |
| 40.3 cal | 0.0403 kcal |
| 40.4 cal | 0.0404 kcal |
| 40.5 cal | 0.0405 kcal |
| 40.6 cal | 0.0406 kcal |
| 40.7 cal | 0.0407 kcal |
| 40.8 cal | 0.0408 kcal |
| 40.9 cal | 0.0409 kcal |
| 41 cal | 0.041 kcal |
| 41.1 cal | 0.0411 kcal |
| 41.2 cal | 0.0412 kcal |
| 41.3 cal | 0.0413 kcal |
| 41.4 cal | 0.0414 kcal |
| 41.5 cal | 0.0415 kcal |
| 41.6 cal | 0.0416 kcal |
| 41.7 cal | 0.0417 kcal |
| 41.8 cal | 0.0418 kcal |
| 41.9 cal | 0.0419 kcal |
| 42 cal | 0.042 kcal |
| 42.1 cal | 0.0421 kcal |
| 42.2 cal | 0.0422 kcal |
| 42.3 cal | 0.0423 kcal |
| 42.4 cal | 0.0424 kcal |
| 42.5 cal | 0.0425 kcal |
| 42.6 cal | 0.0426 kcal |
| 42.7 cal | 0.0427 kcal |
| 42.8 cal | 0.0428 kcal |
| 42.9 cal | 0.0429 kcal |
| 43 cal | 0.043 kcal |
| 卡 (cal) | 千卡 (kcal) |
|---|---|
| 43.1 cal | 0.0431 kcal |
| 43.2 cal | 0.0432 kcal |
| 43.3 cal | 0.0433 kcal |
| 43.4 cal | 0.0434 kcal |
| 43.5 cal | 0.0435 kcal |
| 43.6 cal | 0.0436 kcal |
| 43.7 cal | 0.0437 kcal |
| 43.8 cal | 0.0438 kcal |
| 43.9 cal | 0.0439 kcal |
| 44 cal | 0.044 kcal |
| 44.1 cal | 0.0441 kcal |
| 44.2 cal | 0.0442 kcal |
| 44.3 cal | 0.0443 kcal |
| 44.4 cal | 0.0444 kcal |
| 44.5 cal | 0.0445 kcal |
| 44.6 cal | 0.0446 kcal |
| 44.7 cal | 0.0447 kcal |
| 44.8 cal | 0.0448 kcal |
| 44.9 cal | 0.0449 kcal |
| 45 cal | 0.045 kcal |
| 45.1 cal | 0.0451 kcal |
| 45.2 cal | 0.0452 kcal |
| 45.3 cal | 0.0453 kcal |
| 45.4 cal | 0.0454 kcal |
| 45.5 cal | 0.0455 kcal |
| 45.6 cal | 0.0456 kcal |
| 45.7 cal | 0.0457 kcal |
| 45.8 cal | 0.0458 kcal |
| 45.9 cal | 0.0459 kcal |
| 46 cal | 0.046 kcal |