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Katch-McArdle Calculator

Calculate your estimated basal metabolic rate using your lean body mass with the Katch-McArdle equation.

1

Your Body Weight

lb
2

Your Body Fat

%

Your Estimated BMR

1,752 kcal
estimated BMR per day
64.0 kg
lean body mass
20%
entered body fat
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Hogyan működik a Katch-McArdle kalkulátor?

A Katch-McArdle kalkulátor a testsúly és a testzsírszázalék alapján megbecsüli a zsírmentes testtömeget, majd ennek felhasználásával kiszámítja a becsült alapanyagcserét. Az egyenlet egyik fő sajátossága, hogy nem kizárólag a teljes testsúlyt használja, hanem a zsírmentes testtömegre építi a számítást.

Lépés Képlet Mit jelent?
1. Testsúly Testsúly kg-ban A számítás kiindulópontja.
2. Testzsír Testzsírszázalék (%) Megmutatja, hogy testsúlyod mekkora része testzsír.
3. Zsírmentes testtömeg Testsúly × (1 − testzsír % / 100) Megbecsüli a testzsíron kívüli testsúlyt.
4. Katch-McArdle BMR 370 + (21,6 × zsírmentes testtömeg) Megadja a becsült alapanyagcserét kcal/nap értékben.

A Katch-McArdle képlet

A Katch-McArdle egyenlet a zsírmentes testtömeg alapján becsüli meg az alapanyagcserét. A képletet általában Katch és McArdle nevéhez kötik, és egyik sajátossága, hogy a számítás alapjául a zsírmentes testtömeget használja a teljes testsúly helyett.

BMR = 370 + (21,6 × LBM) LBM = Testsúly × (1 − Testzsír % / 100) Példa: 80 kg testsúly 20% testzsír LBM = 80 × (1 − 20 / 100) LBM = 64 kg BMR = 370 + (21,6 × 64) BMR = 1 752 kcal/nap

Ki dolgozta ki a Katch-McArdle egyenletet?

A Katch-McArdle egyenletet általában Katch és McArdle nevéhez kötik. Az alapanyagcserét a zsírmentes testtömeg alapján becsüli meg, ezért a számításhoz szükség van a testsúlyra és a testzsírszázalék egy becslésére.

Mi az alapanyagcsere (BMR)?

A BMR azt az energiát jelenti, amelyet a szervezet nyugalomban használ fel az alapvető élettani folyamatok fenntartásához. Ide tartozik például a légzés, a keringés és más létfontosságú folyamatok. A BMR nem azonos a teljes napi energiafelhasználással, amelyhez a fizikai aktivitás, a testmozgás és a táplálék termikus hatása is hozzájárul.

Miért használja a Katch-McArdle a zsírmentes testtömeget?

A zsírmentes testtömeg a testzsíron kívüli szöveteket foglalja magában, és az anyagcsere szempontjából aktív szövetek jelentős szerepet játszanak a nyugalmi energiafelhasználásban. Emiatt a Katch-McArdle egyenlet a zsírmentes testtömeget használja a számítás alapjaként, nem pedig egyszerűen a teljes testsúlyt. Ez különösen érdekes lehet azok számára, akiknek testzsírszázaléka jelentősen eltér az átlagos értékektől.

Miért fontos a pontos testzsírszázalék?

Mivel a Katch-McArdle a zsírmentes testtömegből számítja ki a BMR-t, a testzsírszázalék pontatlansága közvetlenül befolyásolja az eredményt. Ha a testzsírszázalék pontatlan mérésből vagy vizuális becslésből származik, a kiszámított BMR is csak közelítő érték lesz. A kalkulátor ezért nem helyettesíti a laboratóriumi vagy klinikai anyagcsere-mérést.

Hogyan használható a Katch-McArdle BMR fogyáshoz?

A Katch-McArdle BMR önmagában nem határozza meg, hogy naponta hány kalóriát érdemes fogyasztanod. A teljes napi energiafelhasználás becsléséhez a nyugalmi energiaigényt a fizikai aktivitással és a testmozgással együtt kell figyelembe venni. Fogyás esetén általában a teljes napi energiafelhasználáshoz viszonyított mérsékelt kalóriadeficit jelent releváns kiindulópontot.

Mennyire pontos a Katch-McArdle kalkulátor?

A Katch-McArdle egy becslési módszer, nem pedig közvetlen mérés, ezért az eredmény nem fog pontosan megegyezni minden ember tényleges BMR-értékével. A bizonytalanság egyik legfontosabb forrása a testzsírszázalék pontossága, mivel ennek hibája közvetlenül megváltoztatja a becsült zsírmentes testtömeget. Az eredményt ezért érdemes hasznos kiindulási becslésként kezelni, nem pedig pontos laboratóriumi mérésként.

Az eredmények kizárólag tájékoztató jellegűek, és nem minősülnek egészségügyi vagy orvosi tanácsadásnak.

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Fitness Calculators
Katch-McArdle Calculator

Katch-McArdle Calculator: calculate your estimated basal metabolic rate using your body weight and body fat percentage. The Katch-McArdle equation uses lean body mass to estimate how much energy your body uses at rest each day.

Medical Disclaimer: The calculator results and information provided in this article are for educational and informational purposes only and do not constitute medical, health, or professional advice. Always consult with a qualified healthcare provider before making any decisions related to your health, diet, or fitness goals. Individual results may vary, and this tool should not be used to diagnose or treat any medical condition.

What Is the Katch-McArdle Calculator?

The Katch-McArdle Calculator estimates your basal metabolic rate, or BMR, using your lean body mass. It uses your body weight and body fat percentage to estimate how much of your body weight is fat-free. This makes it different from equations that calculate BMR primarily from total body weight, age, sex, and height.

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What Is the Katch-McArdle Equation?

The Katch-McArdle equation is BMR = 370 + (21.6 × lean body mass in kg). The first step is to calculate lean body mass from your body weight and body fat percentage, then use that value in the BMR equation. The final result estimates your resting energy expenditure in calories per day.

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How Does Katch-McArdle Calculate BMR?

The calculation first determines lean body mass using body weight × (1 − body fat percentage / 100). The resulting lean body mass is then multiplied by 21.6, and 370 is added to the result. For example, someone weighing 80 kg with 20% body fat has an estimated lean body mass of 64 kg and a calculated BMR of 1,752 kcal per day.

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Why Does Katch-McArdle Use Lean Body Mass?

Total body weight alone does not tell you how much metabolically active tissue you have. Lean body mass accounts for the portion of your body weight that is not body fat, which is why it forms the basis of this equation. This can make Katch-McArdle particularly useful when body-fat percentage varies substantially between individuals at the same body weight.

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How Can You Use Katch-McArdle BMR for Fat Loss?

Your Katch-McArdle BMR is not the same as the number of calories you burn throughout an entire day. Your total daily energy expenditure also includes movement, exercise, and the energy required to digest food. For fat loss, BMR can therefore serve as one input when estimating your total daily calorie needs and establishing an appropriate calorie deficit.

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How Accurate Is the Katch-McArdle Calculator?

Katch-McArdle is an estimation equation rather than a direct measurement of metabolic rate. The accuracy of the result depends heavily on the accuracy of your body fat percentage because that value is used to calculate lean body mass. The result is best treated as a useful starting estimate rather than an exact measurement of your individual BMR.

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