Why track weight log in ClinicalTools
The scale is noisy. Water, salt and the time of day swing it by a couple of pounds, which is why one number tells you little and a trend tells you everything. ClinicalTools plots every entry against a goal line so the direction is obvious even when individual days bounce around.
Alongside weight, each entry can carry body measurements — waist, hips, chest, arm, thigh and neck, in inches or centimetres — and a body-fat percentage from a smart scale or calipers. For people lifting weights, or losing fat while keeping muscle, these move when the scale doesn't.
Set your goal weight once; it appears as a dashed line on the chart and as a "to go" figure on each entry. Export the full history as a PDF, or include weight in the Doctor Share report with your blood pressure and labs.
Three steps, every time.
Set a goal
Enter your target in pounds or kilograms. It is drawn as a line on the chart.
Log your weight
Type the number from the scale. Add measurements or body-fat percentage on the days you take them.
Follow the trend
The chart shows the line against the goal, and each entry lists the measurements recorded that day.
What the Weight Log tool does
Goal line on the chart
Your target is drawn across the trend so the gap — and the direction — are visible at a glance.
Body measurements
Waist, hips, chest, arm, thigh and neck in inches or centimetres, stored with each weigh-in.
Body-fat percentage
Record the reading from a smart scale or calipers to separate fat loss from water and muscle.
Pounds and kilograms
Switch units at any time; history is stored in kilograms and converted exactly.
PDF and Doctor Share
Export your weight history as a PDF or include it in the combined Doctor Share report.
Pairs with BMI and WHtR
Use the same height and waist figures in the BMI and Waist-to-Height Ratio tools for the full picture.
For weight-loss plans, GLP-1 therapy and strength training
Anyone on a structured weight-loss programme — including people on GLP-1 medications who are asked to weigh weekly — benefits from a clean trend against a target. Lifters use the measurements to track a shrinking waist and growing arms while the scale stays flat. The PDF export gives a dietitian or physician exactly what they asked for.
Your weight log data stays yours.
No account, no login, no server run by us. Data lives on your iPhone or iPad and, if you turn on iCloud sync, in your own end-to-end-encrypted iCloud account. Every export and share is something you start.
Weight Log — common questions
Is the weight tracker free?
Yes. Weight Log, measurements, the goal line, charts and PDF export are all free.
Can I track waist and other measurements?
Yes. Each entry can include waist, hips, chest, arm, thigh and neck measurements plus body-fat percentage.
Can I switch between pounds and kilograms?
Yes, at any time. Weights are stored in kilograms and displayed in your chosen unit.
Can I set a goal weight?
Yes. The goal is shown as a line on the chart and as a "to go" figure on each entry.
Can I share my weight history with my doctor?
Yes. Export it as a PDF or include it in a Doctor Share report alongside blood pressure, BMI, labs, sleep and mood.