Free BMI Calculator

Estimate BMI with either metric (kg + cm/m) or imperial (lb + ft/in) values and review healthy range guidance.

BMI Calculator

Calculate body mass index using metric or imperial measurements.

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How to Use

  1. Choose metric or imperial input mode.
  2. Enter weight and height values for your selected unit system.
  3. Run calculation to view BMI category and estimated healthy weight range for your height.

Workflow Notes

  • This tool is for general screening and not a medical diagnosis.
  • Healthy weight ranges are estimated using standard BMI 18.5-24.9 thresholds.
  • Use consistent and recent measurements for better estimates.

Common Use Cases

  • Quickly screen BMI category from latest measurements.
  • Estimate healthy weight range for current height.
  • Track high-level progress over time with consistent inputs.

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FAQ

Does this BMI calculator support imperial units?

Yes. You can switch to pounds/feet/inches input mode.

Can BMI replace clinical advice?

No. BMI is a quick screening metric and should not replace professional medical guidance.

What range is considered healthy?

The calculator uses BMI 18.5 to 24.9 as the general healthy range.

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