Calorie Estimator

Calorie Estimator

The easy way to compare the calories you’re consumed vs burnt.

Works best with Apple Watch.

Simply wear it all-day and watch your numbers tick up as you move around, record workouts and track your meals.

Set your own BMR.

Fine-tune your resting calorie estimate with your own custom BMR. Live estimates in the app will use that number instead of resting calories from Apple Health.

Recommended settings

  • Your Apple Watch automatically records both resting and non-exercise energy (as active calories) throughout the day. For the most accurate estimates, keep your weight updated in Apple Health, as changes in weight affect your resting calorie calculations.

    Choose your tracking preference:

    • Use Apple Watch estimates: Set Custom Value to OFF

    • Use your own baseline (from online calculators): Set Custom Value to ON

    Active calories from workouts will sync automatically when completed.

  • If you only wear your Apple Watch during workouts:

    • Active calories will automatically sync after each workout

    • Set Custom Value to ON

    • Enter a daily resting calorie estimate that accounts for your overall activity level, not just your BMR (this covers everyday movements like climbing stairs that the watch won't track)

  • For non-Apple fitness devices that sync with iPhone:

    • Set Custom Value to ON

    • If your device tracks non-exercise calories as active calories: Enter your BMR

    • If not: Enter a resting calorie estimate that matches your activity level

    While you can use HealthKit to read resting calories, different devices sync at varying intervals. Some manufacturers (like Garmin) only sync at day's end, requiring manual syncs through their companion app. For this reason, we recommend keeping Custom Value ON for more consistent resting calorie updates.

  • When using a non-Apple fitness device that syncs with iPhone:

    • Set Custom Value to ON

    • Enter a resting calorie estimate based on your typical activity level

    To track your workouts, you have two options:

    1. Connect to Apple Health: Manually sync your device's companion app after workouts to update your active calories

    2. Manual Entry: Disconnect from Apple Health and use an iOS shortcut to add active calories after each workout

A one time purchase, no subscriptions, no surprises.

Get it today

Josh Chan

  • Calorie Estimator respects and protects your privacy. Our app only reads data from Apple Health and performs all calculations directly on your device. We do not save any information back to Apple Health, and we do not collect, store, or transmit any data to external servers or third parties.

    The app contains no tracking, analytics, or advertising. Your data remains entirely private and stored only on your personal device. When you grant the app permission to access Apple Health data, you can review and modify these permissions at any time in your device's Settings.

    If you have any questions about privacy and data usage in Calorie Estimator, please contact us at joshtrainsau@gmail.com