Made with TAO-1 › BMI calculator
Build your own BMI calculator in under a minute
A TAO-1 BMI calculator is a working BMI calculator built from one plain-English request: you describe what you want, and TAO-1 builds it.
Updated
This one was built for a personal-training studio. Pick a client, enter height and weight, and see their BMI and category on a scale, with every saved check-in kept below.

What's in a TAO-1 BMI calculator?
A list of clients
Add, rename and delete clients, each with a short note for goals or programme. The list shows each client's current BMI and category.
Metric or imperial
Switch a client between centimetres and kilograms or inches and pounds. Their saved history converts too, and out-of-range heights or weights show an error instead of a result.
BMI on a colour scale
The BMI updates as you type, shown as a large number with a category badge and a marker on a scale split at 18.5, 25 and 30.
Healthy weight and a note
Shows the weight range that would put this client in the healthy band for their height, plus a one-line note for their category.
Dated BMI history
Save entry records a check-in with the date, BMI, category and weight, the change since the previous one, and a small marker on the scale.
Is a TAO-1 BMI calculator right for you?
A good fit if you want a first version live quickly and are happy to edit the details yourself.
Check before you share it: a first version can include placeholder contact details, photos and reviews. Replace them with your own.
How do I make a BMI calculator with TAO-1?
1. Say what you want
Type something like "a BMI calculator for my training clients that keeps each client's past results". Add the units or extra fields you want.
2. Watch it build
TAO-1 builds the tool, checks that the inputs, calculation and saved history work, and gives you a live preview. This one took 32 seconds.
3. Change it by asking
Ask for changes in plain words ("add a weight chart", "let me delete a single entry"), then publish it to a link or download the code.
What else can I add to my BMI calculator?
Add a line chart of each client's BMI over timeLet me delete or edit a single history entryAsk me to confirm before deleting a clientAdd a goal weight and show how far each client has to goExport a client's history as a CSV file
Questions about BMI calculators
Where is client data kept?
In the browser on the device you use, not on a server. Ask TAO-1 if you want export, sign-in or syncing across devices.
How accurate is BMI?
BMI is a screening number based on height and weight, so results are estimates and not a diagnosis. The page says so in its footer.
How much does it cost?
New accounts start with $5 of free credit, which is enough to build and change a calculator like this one.

