Temperbyte

Weight trend calculator

Daily weigh-ins jump around with water, salt and sleep. Paste them here to see the weekly averages and the trend underneath.

Daily weigh-ins, oldest first, one per line. Write a dash for a missed day. 84.2 83.6 84.0 83.1 83.9 84.4 83.5 83.4 83.0 - 82.8 83.6 83.3 82.7 82.9 82.4 82.8 82.1 82.6 - 82.0

Unitkglb

GoalLose weightGain weightMaintain

Why weekly averages beat daily weigh-ins

A single weigh-in can move by a kilo or more overnight from water, salt, carbohydrates, sleep, stress or the menstrual cycle. None of that is fat. Averaging every weigh-in in a week cancels most of the noise, so comparing one week's average with the next shows the real direction.

How the numbers are calculated

• Weekly average: the mean of the weigh-ins logged in each 7-day block. Missed days are skipped, not filled in.
• Weekly change: this week's average minus last week's, in your unit and as a percent of last week's average.
• Average rate: the change from the first full week to the last, divided by the number of weeks between them.
• Trend line: a 7-day rolling average of the logged days.

What rate is reasonable?

For fat loss, many coaches aim for roughly 0.5–1% of body weight per week, and slower for leaner clients. A faster rate for several weeks deserves a check-in about energy, training and how the client is eating. For muscle gain, a much slower rate is common. These are general reference points, not targets for any one person.

Before changing the plan

Look at at least two weeks of averages and at adherence first. If the client hit their targets and the trend is still off for two weeks, change one thing by a small amount. If adherence was low, the conversation is about what got in the way, not a new number.

This tool does arithmetic on the numbers you enter. It is not medical advice. Dizziness, fainting, guilt around food, skipping meals to compensate or exercising far beyond the plan are reasons to talk to a professional, not to adjust a target.