How it’s calculated
Total change = current − start
% of starting weight = total change ÷ start × 100
% of the way to goal = (start − current) ÷ (start − goal) × 100
Average per week = total change ÷ weeks since your start date
Worked example: start 240 lb, now 212 lb, goal 180 lb. Total change is −28 lb, or −11.7% of 240. You’ve covered 28 of the 60 lb between start and goal — 47% of the way — with 32 lb to go. If you started 20 weeks ago, that’s an average of −1.4 lb a week.
Reading your numbers
An average hides the shape of the journey. Weekly changes are rarely even — faster some weeks, flat or even up in others — and an average since the start blends all of them together. To see what the last few weeks look like, put your weigh-ins into the weight trend calculator.
“% of the way” compares you only with your own start and goal. It isn’t a score, and there’s no right speed.
