This article explains why your calculated exercise calories can shift even when you log the exact same activity.
Your body changes, and so does the math behind your workouts. If the same exercise is burning a different number of calories than it used to, that's not a glitch; it's your profile stats catching up to where you are now. We calculate your exercise calories using those stats along with effort values called METs (Metabolic Equivalent of task). Since your specific numbers are part of that equation, your calories burned will shift as you gain or lose weight and will look different from another user's numbers for the exact same activity.
If your profile information changes, like your weight, the calories you burn while exercising change too. Think of your exercise calories as fuel and your body as a car. The less weight in the car, the fewer calories it takes to move it.
If your exercise calories have changed more than expected, see exercise calories not calculating correctly for troubleshooting steps.
Frequently Asked Questions
Will my exercise calories change if I update my weight in my profile?
Yes. Since your weight is part of the calorie calculation, updating it will change the calories calculated for future exercise entries.
Do past diary entries update when my calorie calculation changes?
No. Past entries keep the calorie value they were logged with. Only new entries reflect your updated profile.
What if my calories look wrong, not just different?
That may be a different issue. See exercise calories not calculating correctly.