Omnipus

BMI calculator

Runs on your deviceFreeNo account

How to use BMI calculator

Choose metric (cm, kg) or imperial (ft/in, lb). Enter your measurements. The calculator shows BMI and a category band. It does not account for muscle mass, pregnancy, or age — talk to a clinician for health decisions.

1

Open the tool

Use the workspace below — no signup is required.

2

Enter your input

Choose metric (cm, kg) or imperial (ft/in, lb). Enter your measurements. The calculator shows BMI and a category band. It does not account for muscle mass, pregnancy, or age — talk to a clinician for health decisions.

3

Copy the result

Copy text or download a file when the tool offers an export. Local tools keep processing in this tab.

Direct share: Install Omnipus as an app on Android to share files and links into this tool from other apps.

About this tool

Enter height and weight to get BMI and the standard WHO category. BMI is a screening number, not a diagnosis.

#bmi calculator#body mass index#bmi chart

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Frequently Asked Questions

BMI formula?

kg / m². Imperial inputs are converted first.

Is BMI accurate?

It is a population screening tool. Athletes and some body types are misclassified.

Child BMI?

Use a pediatric chart. This tool is for adults.

Is BMI calculator completely free to use?

Yes. BMI calculator on Omnipus is free to use with no subscription paywall for the tool itself.

Are my files or data uploaded to any servers?

No. BMI calculator processes your input locally in this browser tab. Your files and text are not sent to Omnipus. Some tools download an engine or model file the first time you use them; that is a download, not an upload.

Can I use BMI calculator on my mobile phone?

Yes. Omnipus has touch-friendly controls and can be installed as an app. On Android you can also share files or links into tools from other apps.

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