Calorie Maintainer

Estimate maintenance calories from BMR and activity level for stable body-weight planning.

995.3K uses Updated · 2026-05-25 Runs locally · zero upload
AD

How to Use Calorie Maintainer

  1. Enter sex, age, weight, and height to estimate BMR with Mifflin-St Jeor.
  2. Choose the activity level closest to your usual week.
  3. Calculate maintenance calories, which represent an estimated intake for stable weight.
  4. Compare the estimate with your real body-weight trend and adjust after two to four weeks if needed.

Formula & Theory - Calorie Maintainer

Maintenance calories = BMR x activity factor
  • Activity factors range from 1.2 for sedentary to 1.9 for very high activity.
  • Maintenance is not a fixed biological number; it shifts with training, steps, body weight, sleep, and dieting history.

Use Cases for Calorie Maintainer

  • Finding a baseline after a weight-loss or muscle-gain phase.
  • Planning stable-weight intake before choosing a deficit or surplus.
  • Checking whether current food intake roughly matches observed weight maintenance.

Frequently asked questions about Calorie Maintainer

What inputs does Calorie Maintainer need?

Enter sex, age, weight, and height to estimate BMR with Mifflin-St Jeor.

How should I interpret the result?

Maintenance is not a fixed biological number; it shifts with training, steps, body weight, sleep, and dieting history.

Is my data stored?

No. All calculations happen in your browser; nothing is sent to a server.