Fat Loss Calculators Using Prolonged Fasting | No Signup Needed

Select a strategy below

Calorie Restriction

Alternate-Day Fasting

Prolonged Fasting

A prolonged fast lasts more than 48 hours and it is very popular among people who are serious about their health. According to a study published by The New England Journal of Medicine, prolonged fast has shown to improve stress resistance, anti aging, reverse insulin resistance, long term weight loss etc. This calculator will use your basal metabolic rate as your max. calorie needs per day, which is based on the Mifflin & St. Jeor's formula.

* Your basal metabolic rate will reduce as you lose weight.

* There are 7,700 calories in 1kg of fat or 3500 calories in 1 pound of fat.

* This calculator doesn't take insulin resistance and your body's hormonal response to different types of food into consideration. The less insulin resistant you are the more fat stores your body will be able to convert into energy.

* This calculator assumes that your lean body mass stays the same, meaning no muscle loss during the process.

Select your gender and the type of units below

Female (Metric)

Female (Imperial)

Male (Metric)

Male (Imperial)

Lean Body Mass Calculators

Rest Metabolic Rate Calculators

Basale Metabolic Rate Calculators

Male (Imperial)

Use this calculator to find out how many days it would take you to reach your fat loss goal.

Your current body fat percentage

B F P_{c u r r e n t}

%

Your target body fat percentage

B F P_{t a r g e t}

%

your daily calorie consumption on the days you eat

r e f e e d d a y

c a l o r i e s

The weight measured in pound

w e i g h t

p o u n d

The first part of the height measured in feet. For example

5

5

'10''

h e i g h t_{f e e t}

f e e t

The second part of the height measured in inch. For example

10

in 5'

10

h e i g h t_{i n c h}

i n c h

your age measured in years

a g e

y e a r s

Please note, that all calculators provided are for informational and educational purposes ONLY, and should NOT be taken as professional medical/dietary advice.

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