BMI Calculator · Weight Log

Cooltime Studio

Contains adsIn-app purchases

About this app

Enter your height and weight and your BMI appears right away.
Leave one number behind each day, and those numbers become a change you can see.

BMI Calculator is a logbook built around today's number, with nothing to set up first.
No sign up, no account.


■ Your BMI, right away

Type your height and weight and the result appears as you go. There is no button to press first.
A half circle gauge shows where you land, from underweight through to obesity class 2,
so you can see your position at a glance rather than reading it off a table.

You can choose which standard to measure against.
· Asia Pacific standard
· WHO standard


■ A record every day, and the change it shows

Save your weight once a day and the chart grows a step at a time.
Look at 7 days, 30 days, 90 days or everything, so a short dip and a long trend both stay visible.

· A dated list of every entry, with your average BMI
· Swipe to delete, and undo straight away if it was a mistake
· One entry per day, so the list never turns into clutter


■ More than BMI

Fill in your profile once and four figures come together.

· Body mass index (BMI)
· Body fat percentage (Deurenberg formula)
· Basal metabolic rate (Mifflin-St Jeor formula)
· Ideal weight (modified Broca formula)

Every formula can be opened and read in full. There is no reason to hide how a number was reached.


■ Goal weight

Set a target weight and a date, and you can see how far along you are.
The weekly pace is worked out too, and if it passes 0.5 kg a week you are told so.


■ So you do not forget

A reminder arrives at the time you choose. If you already logged that day, it stays quiet.
Change the time whenever you like, or turn it off.


■ Set up your way

· Theme: follow the system, light, or dark
· Units: cm and kg, or in and lb
· Ad free: ads can be switched off in settings


■ Your records stay on this device

Your height, your weight and every entry are kept on the device only.
Nothing is sent to a server, and there is no account to create.
Calculating and logging keep working with no connection at all.


■ Worth knowing

BMI is worked out from height and weight alone, so it can read differently from your real
condition if you carry a lot of muscle or have an unusual build.
The figures in this app are there to help you look at your own health, and they do not
replace a medical diagnosis or treatment.
Please talk to a healthcare professional about decisions concerning your health.