BMI Calculator
Calculate body mass index from height and weight and see whether it falls in underweight, healthy, overweight or obese. Switch between WHO international and Asia-Pacific cut-offs, and see the weight range that counts as healthy for your height.
Enter a date of birth to see the age.
Age
- Next birthday in
- Days lived
- Korean year age
- Traditional Korean age
Since June 2023, Korean law, contracts and official documents use international age. Year age is only used where a law says so, such as military service and youth protection.
People born on February 29 are counted one year older on March 1 in non-leap years.
What is Y% of X?
Answer
X is what percent of Y?
Answer
Percent change from X to Y?
Answer
X increased or decreased by Y%?
Answer
Korean VAT (10%)
VAT is 10% of the supply value. Working back from a total, VAT is total × 10/110.
- Supply value
- —
- VAT
- —
- Total
- —
Computing the tax per item and rounding each before adding can differ slightly from the tax computed once on the total.
Days between two dates
- In weeks
- In months
Pick two dates to see how many days apart they are.
Add or subtract days (D-day)
Enter height and weight to see your BMI.
- Total interest
- Total paid
| No. | Payment | Principal | Interest | Balance |
|---|
About this tool
How to use it
- 1 Enter your height and weight. Switch units between ft·in·lb and cm·kg.
- 2 BMI and its category appear, with your band highlighted in the table.
- 3 Change the standard to compare WHO and Asia-Pacific cut-offs.
Good to know
- Loan interest uses the annual rate divided by 12. Lenders that charge daily interest can differ by a few cents per payment
- Prepayment fees, grace periods and variable rates are not supported
- BMI is not a reliable measure for children and teens, during pregnancy, or for very muscular people
Frequently asked questions
Which standard should I use?
WHO international cut-offs are used in most countries. Asia-Pacific cut-offs are lower (obesity from 25) and are used in East and South Asia.
Does muscle mass skew BMI?
It can. BMI looks only at height and weight and can't tell muscle from fat.
Is BMI valid for children?
No. Children and teens are assessed with age- and sex-specific growth charts.
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