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Milligrams to Calories Burned Converter

Convert milligrams (mg) to calories burned (kcal), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter calories burned to see the body weight they correspond to, or a weight to see its calories.

For example 3500.
Calories burned or a weight.
What to convert to.
Result
0.007716 kcal
Rule used
3,500 kcal ≈ 1 lb of body weight (≈ 7,716 kcal per kg)

1 mg ≈ 0.007716 kcal, by the 3,500-calorie rule of thumb; real weight change varies from person to person and usually slows over time.

Show the working
  1. 1 mg = 0.000002 lb
  2. kcal = pounds × 3,500 = 0.007716 kcal

How to convert milligrams to calories burned

1 mg = 0.007716 kcal, so multiply by 0.007716 to go from milligrams to calories burned. Going the other way, 1 kcal = 129.59782 mg.

kcal = mg × 0.007716
mg = kcal × 129.59782

Worked example:

5 mg = 0.000011 lb
kcal = pounds × 3,500 = 0.038581 kcal

Milligrams to calories burned table

MilligramsCalories Burned
1 mg0.007716 kcal
2 mg0.015432 kcal
3 mg0.023149 kcal
4 mg0.030865 kcal
5 mg0.038581 kcal
6 mg0.046297 kcal
7 mg0.054013 kcal
8 mg0.061729 kcal
9 mg0.069446 kcal
10 mg0.077162 kcal
15 mg0.115743 kcal
20 mg0.154324 kcal
25 mg0.192904 kcal
30 mg0.231485 kcal
40 mg0.308647 kcal
50 mg0.385809 kcal
75 mg0.578713 kcal
100 mg0.771618 kcal
250 mg1.929045 kcal
500 mg3.85809 kcal
1000 mg7.716179 kcal

About the units

Milligrams (mg)
Milligrams, a metric unit. Definition: BIPM SI Brochure.
Calories Burned (kcal)
Calories burned, a specialised unit. Food Calories (kcal) of energy burned; converted to body weight only through the 3,500 kcal per pound rule of thumb, never to energy units. Definition: Wishnofsky M. (1958), Caloric equivalents of gained or lost weight, American Journal of Clinical Nutrition 6(5):542–546 (the 3,500 kcal per pound rule).

Formula version 0.1.0Reviewed