How many calories in a red grapefruit

How many calories?

A red grapefruit
about 42 Calories

How to calculate a red grapefruit calories?

    red grapefruit nutrition facts

    Water
    Approximately 88 percent
    Carbohydrates
    11 grams
    Fiber
    2 grams
    Protein
    1 gram
    Vitamin C
    64 milligrams
    Vitamin A
    420 IU
    Potassium
    166 milligrams
    Folate
    30 micrograms

    How to burn a red grapefruit calories

    Walking
    Brisk walking for approximately 30 minutes
    Swimming
    Moderate swimming for about 20 minutes
    Jogging
    Jogging at a moderate pace for around 15 minutes