Health Calculators

Overweight Calculator

Use this overweight calculator to review an educational health calculation for overweight.

Primary answer: BMI
Inputs to verify: Age, Height, and Height unit
Use type: Use as a review-only estimate; verify before relying on it.
Keyword intent: overweight calculator

Result

Result reflects the current submitted inputs.

Risk C
Reviewed 2026-05-26
3 sources

BMI25.1 kg/m2

Adult BMI categoryOverweight

Overweight starts at169.3

Obesity starts at203.2

Threshold summaryFor this height, adult overweight starts at 169.3 lb and obesity starts at 203.2 lb.

Screening noteFor adults 20 and older only; BMI is a screening measure and is not a substitute for professional medical advice.

Breakdown

Height used: 1.7526 m
Weight used: 77.1107 kg

This calculator uses adult BMI categories for people 20 years and older.
BMI is a screening measure, not a diagnosis or personalized health assessment.
The calculator excludes children, pregnancy, athletes, body-composition differences, waist circumference, ethnicity, medical history, medication effects, and clinician goals.
Category thresholds use unrounded BMI; display output rounds numeric values to one decimal.

Accuracy notes

Risk level: C
Reviewed: 2026-05-26
Sources: 3
Primary result: BMI

Formula logic is kept in a pure calculator module with fixtures, source notes, and page-visible assumptions.

High-risk estimate

Educational estimate, not advice

This health calculator is for educational estimates only. It does not diagnose, treat, provide medical clearance, or replace advice from a qualified health professional.

Check the reviewed sources, assumptions, and formula limits before using this result for a financial, health, or safety decision.

Review cadence: 12 months; next review due 2027-05-26.

What the result means

BMI is the number to carry forward from this overweight calculation. Body mass index rounded to one decimal for display. Treat the result as educational context, then read the limitations and assumptions before discussing it with a professional. Use adult BMI category, overweight starts at, and obesity starts at to explain why BMI moved when an input changed. Record the inputs you used and verify any health concern with a qualified professional.

BMIBody mass index rounded to one decimal for display.

Adult BMI categoryCDC adult BMI category based on unrounded BMI.

Overweight starts atWeight at BMI 25 for the entered height and weight unit.

Obesity starts atWeight at BMI 30 for the entered height and weight unit.

Use the result this way

Start with BMI, then use supporting outputs only to explain the primary answer.
Verify age, height, and height unit before copying the result.
Choose the mode or method first because it can change which formula is applied, keep units consistent with the labels shown in the form, and stay within the documented minimum and maximum ranges.
Record the inputs you used and verify any health concern with a qualified professional.

User job

How to use this calculator

Use Overweight Calculator when you need bmi, then use adult bmi category and overweight starts at to check the context for general wellness education and preparing for a professional conversation.

Best for

Understanding a formula-based estimate
Seeing which inputs drive a health-related output
Reviewing a default example before entering your own age and height.

Check before relying

Health formulas can be population-specific; do not use the result as diagnosis or treatment advice.
This calculator uses adult BMI categories for people 20 years and older.
BMI is a screening measure, not a diagnosis or personalized health assessment.
Source context: Centers for Disease Control and Prevention, reviewed 2026-05-26.

Next useful step

Healthy Weight CalculatorUse next when you need healthy weight starts at from age and height after checking BMI.
BMI CalculatorUse next when BMI uses age and height after checking BMI.
Pregnancy Weight Gain CalculatorUse next when you need pre-pregnancy BMI from height before pregnancy and height unit after checking BMI.

Limits of this estimate

Supports adult BMI category screening only; it does not diagnose obesity or health status and excludes children, pregnancy, athletes, body composition, ethnicity, waist circumference, and clinical context.
The result depends on user-entered inputs and the documented assumptions; defaults are examples only.
Search indexing approval does not downgrade this page from risk level C or turn the result into professional advice.

Formula

BMI equals weight in kilograms divided by height in meters squared; adult categories and threshold weights use CDC BMI cut points. Key assumptions: This calculator uses adult BMI categories for people 20 years and older. BMI is a screening measure, not a diagnosis or personalized health assessment. The calculator excludes children, pregnancy, athletes, body-composition differences, waist circumference, ethnicity, medical history, medication effects, and clinician goals.

BMI equals weight in kilograms divided by height in meters squared; adult categories and threshold weights use CDC BMI cut points.
This calculator uses adult BMI categories for people 20 years and older.
BMI is a screening measure, not a diagnosis or personalized health assessment.
Primary source context: Centers for Disease Control and Prevention.

Inputs

Enter age, height, height unit, and weight for general wellness education and preparation for a professional conversation. Before calculating, choose the mode or method first because it can change which formula is applied, keep units consistent with the labels shown in the form, and stay within the documented minimum and maximum ranges. Age: Adult BMI categories are for adults 20 years and older. Height: Use centimeters when height unit is cm, or total inches when height unit is in. Height unit: Choose centimeters or inches. Weight: Use kilograms when weight unit is kg, or pounds when weight unit is lb.

AgeAdult BMI categories are for adults 20 years and older.

HeightUse centimeters when height unit is cm, or total inches when height unit is in.

Height unitChoose centimeters or inches.

WeightUse kilograms when weight unit is kg, or pounds when weight unit is lb.

Weight unitChoose kilograms or pounds.

Example

Using the default inputs, Overweight Calculator returns BMI of 25.1 kg/m2. Adjust age, height, height unit, and weight to match your own scenario.

FAQ

How is BMI calculated here?

BMI equals weight in kilograms divided by height in meters squared; adult categories and threshold weights use CDC BMI cut points. The first assumption to check is: This calculator uses adult BMI categories for people 20 years and older.

What does BMI mean for overweight?

Treat the result as educational context, then read the limitations and assumptions before discussing it with a professional. Secondary values such as adult BMI category, overweight starts at, and obesity starts at are there to explain the primary answer, not to replace it.

What should I enter for Age?

Adult BMI categories are for adults 20 years and older. Use years for this field. Choose the mode or method first because it can change which formula is applied, keep units consistent with the labels shown in the form, and stay within the documented minimum and maximum ranges.

How does Height change BMI?

Use centimeters when height unit is cm, or total inches when height unit is in. Changing it can alter BMI because the formula uses the submitted inputs together. Also compare measurement method, formula population, age range, units, sex or activity assumptions, and clinical context.

Why does the overweight example show 25.1 kg/m2 for BMI?

The default inputs produce 25.1 kg/m2 for BMI. Treat that as a format and scale check, then replace every default value with your own inputs.

Can the overweight result diagnose or prescribe anything?

No. Use it as educational context only. Health formulas can depend on population, measurement method, age range, and clinical context.

Sources

Last reviewed: 2026-05-26

officialReviewed 2026-05-26 · Source 2024-03-19
Adult BMI CategoriesCenters for Disease Control and Prevention. Underweight, healthy weight, overweight, and obesity class thresholds; adult-only scope and medical disclaimer.
Scope
Adult BMI categories for people 20 and older and BMI as a screening measure.
Supports
Underweight, healthy weight, overweight, and obesity class thresholds; adult-only scope and medical disclaimer.
Limits
Supports adult BMI category screening only; it does not diagnose obesity or health status and excludes children, pregnancy, athletes, body composition, ethnicity, waist circumference, and clinical context.
officialReviewed 2026-05-26 · Source 2024-06-18
Calculating BMICenters for Disease Control and Prevention. Metric formula, U.S. customary formula, and adult BMI calculation basis.
Scope
BMI formulas for metric and U.S. customary inputs.
Supports
Metric formula, U.S. customary formula, and adult BMI calculation basis.
Limits
Supports adult BMI category screening only; it does not diagnose obesity or health status and excludes children, pregnancy, athletes, body composition, ethnicity, waist circumference, and clinical context.
officialReviewed 2026-05-26 · Source 2024-06-28
BMI Frequently Asked QuestionsCenters for Disease Control and Prevention. Context that BMI should be considered with other health factors and child/teen BMI uses age- and sex-specific percentiles.
Scope
BMI use and interpretation limitations.
Supports
Context that BMI should be considered with other health factors and child/teen BMI uses age- and sex-specific percentiles.
Limits
Supports adult BMI category screening only; it does not diagnose obesity or health status and excludes children, pregnancy, athletes, body composition, ethnicity, waist circumference, and clinical context.

Disclaimer

This health calculator is for educational estimates only. It does not diagnose, treat, provide medical clearance, or replace advice from a qualified health professional.

Overweight Calculator