Free BMR Calculator
Find your Basal Metabolic Rate — the calories your body burns at rest — using the Mifflin-St Jeor equation. It's the starting point for any calorie goal. Free, no signup.
From BMR to a calorie goal
Your BMR tells you the floor — the energy you burn doing nothing. Multiply it by an activity factor to get your TDEE (total daily burn), then eat below that to lose weight. Our calorie calculator does that full step for you.
The part most people get wrong
Knowing your numbers is the easy half. The hard half is accurately tracking what you actually eat. MyDietJourney removes that friction — photograph your meal and AI estimates the calories, so the math you did here actually translates into results.
Skip the math entirely
Snap a photo of your meal and MyDietJourney's AI counts the calories and macros for you — in about 2 seconds. 7-day free trial.