How does Tone set my calories and macros?

Your plan comes from what you tell Tone during setup: your sex, date of birth, height, weight, how often you work out, and your goal. If you add your body fat percentage, Tone uses it for a more accurate estimate of what you burn at rest.

From there:

• Calories are what you burn in a day, adjusted for your goal and the pace you chose.
• Protein is set first, by your body weight: more when you’re losing weight or building muscle.
• Fat is about a quarter of your calories, and carbs make up the rest.

To change your numbers, change your goal, your activity or your weight in Settings, and the plan updates.