BMR Calculator | Calculate Your Basal Metabolic Rate

Advanced BMR Calculator - Humans & Animals

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ADVANCED BMR: This calculator uses comprehensive physiological, environmental, and behavioral parameters to provide the most accurate Basal Metabolic Rate estimates possible for any species. Click section headers to expand parameters.

Calculation Accuracy: 0%

Complete more parameters to improve accuracy

🐾 Species & Basic Info (Required)

Select species and basic identification

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Select Species:

📏 Physical Measurements (6 parameters)

Weight, height, body composition

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Weight:

Most critical parameter for BMR

Weight Unit:

Height/Length:

Body length or height measurement

Height Unit:

Body Fat Percentage:

Lean body mass affects BMR significantly

Muscle Mass (%):

Muscle tissue is metabolically active

📊 Biological Parameters (5 parameters)

Age, sex, reproductive status, life stage

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Age:

Metabolic rate changes with age

Age Unit:

Sex:

Reproductive Status:

Reproduction significantly increases energy needs

Life Stage:

🌡️ Environmental & Physical Factors (6 parameters)

Temperature, humidity, altitude, lighting

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Body Temperature:

Core body temperature affects metabolism

Temperature Unit:

Ambient Temperature:

Environmental temperature

Humidity (%):

Affects thermoregulation costs

Altitude (meters):

High altitude increases metabolic demands

Daylight Hours:

Seasonal light cycles affect metabolism

🏃‍♂️ Activity & Lifestyle (4 parameters)

Exercise, sleep quality, stress levels

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Current Activity Level:

Exercise Frequency (days/week):

Regular exercise affects resting metabolism

Sleep Quality:

Sleep affects hormonal balance and metabolism

Stress Level:

Stress hormones increase metabolic rate

🍽️ Nutritional Status (4 parameters)

Feeding state, hydration, diet type, nutrition

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Fasting State:

Feeding state affects metabolic measurements

Hydration Level:

Diet Type:

Diet affects metabolic efficiency

Nutritional Status:

🏥 Health Conditions (10 parameters)

Medical conditions, medications, surgery history

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Taking Medications:

Recent Surgery/Trauma:

🦆 Species-Specific Factors (4 parameters)

Coat density, seasonal adaptations, social status

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Coat/Fur/Feather Density:

Insulation affects thermoregulation costs

Seasonal Adaptation:

Social Status:

Social stress affects metabolism

Captivity Status:

🧮 Calculation Method (1 parameter)

Choose BMR formula for calculation

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BMR Formula:

kcal/day

🔥 Advanced BMR Calculator