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Grundumsatz-Rechner.
Berechnen Sie Ihren Grundumsatz (BMR) mit den Formeln von Mifflin-St Jeor, überarbeitetem Harris-Benedict und Katch-McArdle.
Dieser Rechner ist noch nicht vollständig übersetzt – einige Texte werden auf Englisch angezeigt.
Werte eingeben
Ergebnisse werden während der Eingabe aktualisiert.
Erforderlich für die Katch-McArdle-Formel zur Bestimmung der fettfreien Körpermasse.
Ihr Grundumsatz (BMR)
Dies ist die Anzahl an Kalorien, die Ihr Körper benötigt, um bei absoluter Ruhe zu überleben, ohne Aktivität oder Verdauung.
BMR-Formeln vergleichen
Mifflin-St Jeor
1674 kcal
Revised Harris-Benedict
1724 kcal
Katch-McArdle
N/A
Tägliche Kalorienzufuhr nach Aktivitätsgrad (TDEE)
| Aktivitätsniveau | Kalorien |
|---|---|
| BewegungsarmWenig oder keine Bewegung | 2009 kcal |
| Leicht aktivLeichte Bewegung 1-3 Tage/Woche | 2302 kcal |
| Mäßig aktivMäßige Bewegung 3-5 Tage/Woche | 2595 kcal |
| Sehr aktivIntensive Bewegung 6-7 Tage/Woche | 2888 kcal |
| Extrem aktivTägliche intensive Bewegung & körperliche Arbeit | 3181 kcal |
Verwandte Rechner
Cite this calculator
Canonical URL: https://mathify.one/de/fitness/bmr
Cite as: Mathify. (2026). Grundumsatz-Rechner. https://mathify.one/de/fitness/bmr
Use Cases
Weight Management Planning
Determine your resting calorie burn to set realistic calorie targets for weight loss, gain, or maintenance.
Example: If your BMR is 1,500 calories, you might aim for 1,200–1,300 calories daily to lose weight.
Nutrition and Fitness Tracking
Use BMR as a baseline to calculate total daily energy expenditure (TDEE) and adjust macronutrient intake.
Example: Combine BMR with activity level to estimate daily calorie needs for training.
Frequently Asked Questions
- What is BMR and why is it important?
- BMR (Basal Metabolic Rate) is the number of calories your body burns at complete rest to maintain vital functions like breathing and circulation. It forms the baseline for daily calorie needs, helping you manage weight or plan nutrition.
- Which BMR formula is most accurate?
- The Mifflin-St Jeor equation is widely considered the most accurate for the general population. The Revised Harris-Benedict is also reliable, while Katch-McArdle is best for lean individuals if you know your body fat percentage.
- How does body fat percentage affect BMR?
- Muscle tissue burns more calories than fat, so a lower body fat percentage (more muscle) typically increases BMR. The Katch-McArdle formula uses body fat to estimate lean mass, making it more precise for athletic or muscular individuals.
Tips & Common Mistakes
Tips
- Enter your height in either centimeters or feet/inches – the calculator will handle the conversion.
- For the Katch-McArdle formula, provide an accurate body fat percentage for the best estimate.
- Use the same formula consistently when tracking changes over time to see trends.
- BMR is a resting estimate; multiply by an activity factor to estimate total daily burn.
Common Mistakes to Avoid
- Using the wrong height unit – double-check if you entered cm or ft/in.
- Forgetting to enter body fat percentage when using Katch-McArdle, which then may not be accurate.
- Assuming BMR equals total daily calorie needs – it's only the resting portion.
Last updated: August 13, 2026