How do you convert calories to joules?

One joule is about 0.24 calories. So: 60.5 joules x 0.24 = 14.52 calories.

1 calorie = 4.18400 joules 450 calories = 1 882.8 joules

20.0167304 calories

1 joule is 0,239 calories. so 515 x 0,239 = 123,085 calories

Yes. 5.42 calories equates to 22.692456 joules.