Weight Loss Percentage Calculator

This calculator finds the weight loss percentage and total weight loss from the initial and current weights.

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Created by: Jainisha Pansuriya

How to Calculate Weight Loss Percentage

The following formula is used:

Weight Loss (%) = ((Initial - Current) ÷ Initial) × 100

Example 1:

Find the weight loss (%) for:

  • Initial weight = 170 lbs
  • Current weight = 155 lbs

Apply the time values in the formula:

= ((170 - 155) ÷ 170) × 100

= (15 ÷ 170) × 100

= 0.08823 × 100

= 8.824%

Example 2:

Calculate the weight loss (%) for:

  • Initial weight = 68 kg
  • Current weight = 57 kg

Apply the time values in the formula:

= ((68 - 57) ÷ 68) × 100

= (11 ÷ 68) × 100

= 0.16176 × 100

= 16.176%