78 kg at 170 cm
- Category
- Overweight
- Above BMI 24.9
- 6.039 kg / 13.3137160131 lb
- To BMI 30
- 8.7 kg below
BMI is only a screening tool. Waist size, body composition, health history, medications, and clinician review can change the real health picture.
Overweight BMI Calculator
Use this free overweight BMI calculator to compare adult BMI with the 25 and 30 BMI screening thresholds.
Research-based formula Estimate limits shown Examples included Private history
Formula steps
- Convert height from centimeters to meters.
- BMI = weight in kilograms / height in meters squared.
- Compare with adult BMI screening ranges: 25 to less than 30 is the overweight category.
How to use the overweight bmi calculator
- Enter the requested measurements, dates, lab values, or workout details.
- Check that the units and formula assumptions match what the tool is asking for.
- Press the calculate button to see the answer, supporting metrics, and formula steps.
- Read the estimate with the health disclaimer in mind, then copy the result if you need it for notes.
Common uses
Check whether an adult BMI is in the overweight screening category.
See how far a weight is above the BMI 24.9 reference boundary.
Compare the result with the BMI 30 obesity screening threshold.
Use people-first, non-shaming language around BMI categories.
Examples
BMI about 27.0
BMI about 27.5
BMI about 27.3
Frequently asked questions
Plain-language answers about when to use the estimate, what the formula means, what it cannot decide for you, and how privacy works.
When should I use the Overweight BMI Calculator?
Use it for simple educational checks, trend tracking, or planning tasks like these: Check whether an adult BMI is in the overweight screening category. See how far a weight is above the BMI 24.9 reference boundary. It can help you understand a number, but it cannot explain your whole health situation.
What is the Overweight BMI Calculator doing with my inputs?
In plain language: BMI is weight in kilograms divided by height in meters squared. Adult BMI 25 to less than 30 is the overweight category, and 30 or greater is the obesity category. Read the result together with the notes on the page, because health and fitness numbers often need personal context.
Can I use this as medical advice?
BMI is a screening tool, not a complete health judgment. Body composition, waist size, medical history, medications, and clinician review can change the real health picture. Use the calculator as a learning tool, then ask a qualified professional about decisions that affect care, pregnancy, medication, nutrition, or safety.
Does the site save my health inputs?
No. The calculator runs in your browser tab. Recent answers stay only on the page while you use it, and they are not sent to a server.