Calculator Inputs and Outputs
Inputs
- Weight change (kg) — example: -5
- Starting weight (kg) — example: 90
Results
- Body-weight percentage change (%)
- Ending weight (kg)
Formula used
Percentage change = weight change ÷ starting weight × 100.
How to Use the Body Weight Percentage Change Calculator
- Enter each requested input using consistent units.
- Select Calculate Body Weight Percentage Change.
- Review the primary answer and supporting results.
Inputs
- Weight change: enter a value in kg.
- Starting weight: enter a value in kg.
Formula
Percentage change = weight change ÷ starting weight × 100.
Results
- Body-weight percentage change in %.
- Ending weight in kg.
Accuracy and Limits
Use measured inputs and keep units consistent. Results are estimates and should be independently checked before financial, medical, construction, scientific, legal, or safety-critical decisions.
Calculation Standards
This tool uses documented formulas and high-precision internal values. Displayed results may be rounded for readability. Review the assumptions and verify important decisions with a qualified professional.
Read our calculation methodology