Body Measurement Tracker

Eight columns

Date and weight. Then chest, waist, hips, arms, thighs, and a notes column at the end. Eight to twenty rows.

Choose centimetres, which puts weight in kilograms, or inches, which puts it in pounds. The column headers change with the choice so nothing has to be converted mentally.

Why the tape measure beats the scales

Weight is a single number that conflates several things, and it moves for reasons that have nothing to do with progress.

Water and salt shift it. So does sleep, so do hormones, so does whatever is currently in your digestive system — a couple of kilograms inside a week, easily. Muscle is also denser than fat, so somebody training seriously can get visibly leaner while the scales do nothing at all — a genuinely common and thoroughly demoralising experience for anyone watching only that one number.

Measurements do not have that problem. A waist that has lost four centimetres has lost four centimetres.

Measure the same way every time

Consistency matters more than technique. Inconsistency is where most of the apparent noise comes from.

Same time of day, first thing in the morning is best. Same points on the body — waist at the narrowest part or at the navel, but always the same one. Tape snug and level, not pulled tight. Relaxed, not holding your stomach in or flexing.

Write the exact spot in the notes column on the first row. In six weeks you will not remember which rib you measured from.

Fortnightly, not daily

Measurements move slowly and daily readings are almost entirely noise, which is discouraging for no reason at all.

Every two weeks is frequent enough to see a trend and infrequent enough that the trend is real. Monthly is fine too. Compare across three or four entries rather than against the last one.

The notes column

Training changes, illness, a holiday, a new medication, a week of poor sleep. These explain the entries that otherwise look inexplicable, and without them a flat fortnight reads as failure rather than as the week you had flu.

A word on what this is for

It is a record, not a verdict. Numbers on a page describe a body; they do not evaluate it, and a measurement that has not moved is information rather than a judgement.

If tracking measurements is something that has been difficult for you in the past, or becomes preoccupying, it is entirely reasonable not to keep one — and worth talking to your GP about.