BMI Calculator

Last updated: April 2026

Unit system

Weight

Height

BMI Result

22.9

Normal weight

Details

Weight used70 kg

Height used1.75 m

Interpretation

Your BMI is within the normal weight range for adults.

BMI is a general screening tool and does not measure body fat directly.

Related calculators:

BMR Calculator
TDEE Calculator
Body Fat Percentage Calculator
Ideal Weight Calculator

What is BMI?

BMI stands for Body Mass Index. It is a simple height-to-weight screening measure used to group adults into broad weight categories.

How is BMI calculated?

BMI is calculated as weight in kilograms divided by height in metres squared: BMI = weight(kg) / height(m)^2.

What do BMI categories mean?

Underweight is below 18.5, normal weight is 18.5 to 24.9, overweight is 25.0 to 29.9, and obesity is 30.0 or above.

Limitations of BMI

BMI does not account for muscle mass, body composition, age, sex, or ethnicity. It is a general indicator, not a medical diagnosis.

What does this mean?

This calculator is designed to help you understand the likely number before you make a decision or start an application.

Your result should be checked against official UK guidance, especially if your circumstances include dependants, exemptions, prior leave, or a complex immigration history.

Treat the figure as a planning tool rather than legal advice. Where the answer affects an application deadline or major payment, speak to an authorised adviser.