BMR (Basal Metabolic Rate) Formulas

Several formulas can be used to calculate BMR (Basal Metabolic Rate).

1. Mifflin-St. Jeor equations
2. Harris-Benedict equation
3. Katch-McArdle equation
4. Cunningham equation
5. Owen equation

1. Mifflin-St. Jeor equation

Our calculator tool above uses the Mifflin-St Jeor equation, which is thought to be the most accurate estimate.

• For men: BMR = (10 x weight in kg) + (6.25 x height in cm) - (5 x age in years) + 5

• For women: BMR = (10 x weight in kg) + (6.25 x height in cm) - (5 x age in years) - 161

Mifflin-St. Jeor Equation Example To Estimate BMR:

Let's say a 40-year-old female weighs 70 kilograms (154 pounds) and is 170 centimeters (5 feet 7 inches) tall.

To calculate her estimated BMR using the Mifflin-St. Jeor equation, we need to use the following formula:

• BMR = (10 x weight in kg) + (6.25 x height in cm) - (5 x age in years) - 161

Substituting the values into the equation to get BMR:

• = (10 x 70) + (6.25 x 170) - (5 x 40) - 161
• = 700 + 1062.5 - 200 - 161
• = 1,401.5 calories per day

Therefore, this individual's estimated BMR using the Mifflin-St. Jeor equation is 1,401.5 calories per day.

2. Harris-Benedict Revised Equation

The original Harris–Benedict equations were published in 1918 and 1919.^[1]

• Men BMR = 66.473 + ( 13.7516 × weight in kg ) + ( 5.0033 × height in cm ) – ( 6.755 × age in years )
• Woman BMR = 655.0955 + ( 9.5634 × weight in kg ) + ( 1.8496 × height in cm ) – ( 4.6756 × age in years )

Many experts consider the revised Harris-Benedict equation to be the accurate BMR calculation for most types of people.

The Harris–Benedict equations were revised by Roza and Shizgal in 1984.^[2]

• For men: BMR = 88.36 + (13.4 x weight in kg) + (4.8 x height in cm) - (5.7 x age in years)

• For women: BMR = 447.6 + (9.2 x weight in kg) + (3.1 x height in cm) - (4.3 x age in years)

Harris-Benedict Equation Example To Estimate BMR:

Let's say a 40-year-old female weighs 70 kilograms (154 pounds) and is 170 centimeters (5 feet 7 inches) tall.

To calculate her estimated BMR using the Harris-Benedict equation, we need to use the following formula:

• For women: BMR = 447.6 + (9.2 x weight in kg) + (3.1 x height in cm) – (4.3 x age in years)

Substituting the values into the equation to get BMR:

• = 447.6 + (9.2 x 70) + (3.1 x 170) - (4.3 x 40)
• = 447.6 + 644 + 527 - 172 BMR
• = 1,452.17 calories per day

The estimated BMR using the Harris-Benedict equation is 1,452.17 calories per day.

3. Katch-McArdle Equation

The Katch-McArdle equation used the same formula to estimate the BMR (Basal Metabolic Rate) for both males and females.

The equation considers a lean body mass, which is the body's weight minus the weight of fat. The Katch-McArdle equation is:

• BMR = 370 + (21.6 x lean body mass in kg)

The Katch-McArdle equation is considered to be more accurate than the Harris-Benedict and Mifflin-St. Jeor equations because it considers body composition. However, the accuracy of the Katch-McArdle equation depends on the accuracy of the body fat measurement.

You need to have their body fat percentage to calculate lean body mass.

To measure lean body fat, you can use skinfold caliper measurements, bioelectrical impedance analysis, or dual-energy X-ray absorptiometry (DEXA).

Katch-McArdle Equation Example To Estimate BMR:

Let's say a 35-year-old male weighs 80 kilograms (176 pounds) and has a body fat percentage of 20%.

To calculate his lean body mass, we need to multiply his weight by (100 - body fat percentage) as follows:

• Lean body mass = 80 kg x (100% - 20%) = 64 kg

Using the Katch-McArdle equation, we can calculate his estimated BMR as follows:

• = 370 + (21.6 x lean body mass in kg) BMR
• = 370 + (21.6 x 64) BMR
• = 370 + 1,382.4 BMR
• = 1,752.4 calories per day

The estimated BMR using the Katch-McArdle equation is 1,908 calories per day.

This means that his body would burn approximately 1,752.4 calories per day if he were at complete rest, without any physical activity or food intake.

4. Cunningham equation

The Cunningham equation is a formula used to estimate BMR (Basal Metabolic Rate) for individuals who know their body fat percentage.

The equation considers the lean body mass, which is the body weight minus the body fat.

The Cunningham equation is:

• BMR = 500 + (22 x lean body mass in kg)

Cunningham Equation Example To Estimate BMR:

Let's say a 35-year-old male weighs 80 kilograms (176 pounds) and has a body fat percentage of 20%. To calculate his lean body mass, we need to multiply his weight by (100 - body fat percentage) as follows:

• Lean body mass = 80 kg x (100% - 20%) = 64 kg

Using the Cunningham equation, we can calculate his estimated BMR as follows:

• = 500 + (22 x lean body mass in kg) BMR
• = 500 + (22 × 64) BMR
• = 500 + 1,408 BMR
• = 1,908 calories per day

The estimated BMR using the Cunningham equation is 1,908 calories per day.

5. Owen Equation

The Owen equation is another method to estimate BMR that considers body surface area. Here is the formula:

• BMR (men) = 879 + 10.2 x weight (kg) + 6.25 x height (cm) - 5.4 x age (years)
• BMR (women) = 795 + 7.2 x weight (kg) + 4.7 x height (cm) - 4.7 x age (years)

Owen's Equation Example To Estimate BMR:

Note that the Owen equation is less commonly used than the Harris-Benedict or Mifflin-St. Jeor equations.

Let's say a 25-year-old female weighs 65 kilograms (143 pounds) and is 170 centimetres (5 feet 7 inches) tall.

• BMR = 795 + (7.2 x weight in kg) + (4.7 x height in cm) - (4.7 x age in years)

Substituting the values into the equation to get BMR:

• = 795 + (7.2 x 65) + (4.7 x 170) - (4.7 x 25)
• = 795 + 468 + 799 - 117.5
• = 1,944.5 calories per day

Therefore, this individual's estimated BMR using the Owen equation is 1,944.5 calories per day. This means that her body would burn approximately 1,944.5 calories per day if she were at complete rest, without any physical activity or food intake.

Weighted Pull-Up 1RM Calculator

Max Weighted Pull Up Calculator

Calculate your maximum weighted pull-up using scientifically validated formulas. Enter your bodyweight, added weight, and reps to determine maximum pulling strength.

Bodyweight

Your current bodyweight (essential for weighted pull-up calculations)

Added Weight Additional weight used (belt, vest, dumbbell) - enter 0 for bodyweight-only pull-ups

Reps Performed Number of repetitions performed at the given weight (1-20 reps for accuracy)

1RM Formula

Choose calculation method - Epley is most common, Average provides balanced estimate

Max Weighted Pull-Up Calculator

Calculate your maximum weighted pull-up using scientifically validated formulas. Our calculator employs Epley, Brzycki, and Lander equations to estimate maximum pulling strength from submaximal lifts, supporting safe and effective upper body training progression.

1RM Formulas for Pull-Ups

Three research-validated formulas calculate maximum strength: Epley (general use), Brzycki (conservative), and Lander (powerlifting-focused). Research demonstrates excellent reliability for upper body pulling movements.

Training Applications

Use 1RM calculations for percentage-based programming: 70-85% for strength, 85-95% for power, 60-70% for hypertrophy. Studies validate submaximal testing accuracy for pull-up program design.

Weighted Pull-Up Strength Standards

Level	Added Weight (kg)	Added Weight (lbs)	Description
Below Bodyweight	< 0 kg	< 0 lbs	Cannot complete bodyweight pull-up
Beginner	0-10 kg	0-22 lbs	Basic pulling strength
Novice	10-25 kg	22-55 lbs	Developing strength
Intermediate	25-45 kg	55-99 lbs	Good pulling strength
Advanced	45-70 kg	99-154 lbs	Excellent strength
Elite	70+ kg	154+ lbs	Exceptional strength

Training Zones Based on 1RM

Strength (85-95%)

Low reps (1-5), long rest periods. Builds maximum pulling strength and neural efficiency.

Power (70-85%)

Explosive movement, moderate reps (3-6). Develops pulling power and speed.

Hypertrophy (60-75%)

Moderate reps (6-12), shorter rest. Maximizes lat and bicep muscle growth.

Endurance (40-60%)

High reps (15+), minimal rest. Improves pulling endurance and work capacity.

Safety Guidelines

According to exercise safety research, proper weighted pull-up 1RM testing requires specific protocols:

• Shoulder Preparation: Perform thorough shoulder and lat warm-up before testing.
• Progressive Loading: Start at 50% estimated 1RM, progress in 5-10% increments.
• Rest Periods: 3-5 minutes between heavy attempts for full recovery.
• Grip Considerations: Use lifting straps if grip fails before lats during heavy attempts.
• Form Standards: Full range of motion - dead hang to chin over bar.
• Testing Frequency: Limit true 1RM attempts to every 4-6 weeks.

Programming Applications

Beginner Program

Week 1-4: Bodyweight 3×5-8
Week 5-8: +2.5-5kg 3×3-6
Focus: Form development, grip strength

Intermediate Program

Week 1-3: 70-80% 1RM 4×3-6
Week 4: Deload at 50-60% 1RM
Focus: Strength progression, periodization

Advanced Program

Week 1: 80-90% 1RM 5×2-4
Week 2: 90-95% 1RM 3×1-2
Focus: Peak strength, competition prep

12-Minute Cooper Test Calculator

Cooper Test Calculator

Calculate your VO2 Max and fitness rating based on the 12-minute Cooper Test

Gender Male Female

Age (years)

Distance Covered in 12 Minutes

VO2 Max

Fitness Rating

Age Group Average

Cooper Test: The 12-Minute Run Test for VO2 Max Assessment

The Cooper Test, developed by Dr. Kenneth Cooper in 1968, is one of the most widely used field tests to estimate VO2 Max. This scientifically-validated assessment has become a cornerstone in military fitness testing and athletic performance evaluation.

What is the Cooper Test?

The Cooper Test is a 12-minute running test that measures the maximum distance an individual can cover. It's a reliable predictor of VO2 Max and aerobic fitness, used by military organizations, sports teams, and fitness enthusiasts worldwide.

Scientific Foundation

Research shows a strong correlation (r = 0.90) between Cooper Test results and laboratory-measured VO2 Max. This makes it one of the most accurate field tests available for aerobic capacity assessment.

How to Perform the Cooper Test Correctly

1

Preparation

• Choose a flat, measured running track
• Perform 10-15 minutes of warm-up
• Ensure proper running shoes and comfortable clothing

2

Equipment Needed

• Stopwatch or timer
• Distance markers or track
• Heart rate monitor (optional)

3

Test Execution

• Run for exactly 12 minutes
• Maintain steady pace
• Record total distance covered

4

Safety Guidelines

• Consult physician before testing
• Stay hydrated
• Stop if experiencing severe discomfort

Expert Tips for Best Results 💡

• Pacing: Start at a comfortable pace and adjust as needed
• Weather: Choose moderate weather conditions
• Recovery: Allow 48 hours before retesting
• Accuracy: Use a proper running track for precise measurements

Cooper Test: Estimate Your VO2 Max 🏃‍♂️

The Cooper 12-Minute Run Test, first published in the Journal of the American Medical Association, remains one of the most reliable field tests for estimating VO2 Max. This scientifically-validated assessment provides accurate aerobic fitness measurements without expensive laboratory equipment.

Cooper Test VO2 Max Formula

For Kilometers:

VO2 Max = (22.351 × kilometers) - 11.288

For Miles:

VO2 Max = (35.97 × miles) - 11.291

Result is expressed in ml/kg/min (milliliters of oxygen per kilogram per minute)

Scientific Validation ✓

0.897

Correlation coefficient with laboratory VO2 Max testing

±3.5

Standard error of estimate (ml/kg/min)

50+

Years of worldwide scientific validation

Important Testing Notes

Accuracy Factors

• Use a flat, measured track
• Maintain consistent pace
• Record exact distance
• Time precisely 12 minutes

Best Practices

• Test in moderate weather
• Wear appropriate footwear
• Stay well-hydrated
• Warm up properly

Cooper Test Distance Rankings by Age & Gender

Find your fitness level based on the distance covered in your 12-minute Cooper Test. Rankings are categorized by age and gender, with distances measured in meters.

Age Group	Excellent	Above Average	Average	Below Average	Poor
20-29	Over 2800m	2400-2800m	2200-2399m	1600-2199m	Under 1600m
30-39	Over 2700m	2300-2700m	1900-2299m	1500-1999m	Under 1500m
40-49	Over 2500m	2100-2500m	1700-2099m	1400-1699m	Under 1400m
50+	Over 2400m	2000-2400m	1600-1999m	1300-1599m	Under 1300m

Age Group	Excellent	Above Average	Average	Below Average	Poor
20-29	Over 2700m	2200-2700m	1800-2199m	1500-1799m	Under 1500m
30-39	Over 2500m	2000-2500m	1700-1999m	1400-1699m	Under 1400m
40-49	Over 2300m	1900-2300m	1500-1899m	1200-1499m	Under 1200m
50+	Over 2200m	1700-2200m	1400-1699m	1100-1399m	Under 1100m

Excellent

Above Average

Average

Below Average

Poor

Common Questions About the Cooper Test

Get answers to frequently asked questions about the Cooper 12-minute run test, its accuracy, and proper execution.

Q

How accurate is the Cooper Test for measuring VO2 Max?

A

The Cooper Test has been scientifically validated with a correlation coefficient of 0.897 with laboratory VO2 Max testing. While not as precise as laboratory testing, it's one of the most reliable field tests available. The test's accuracy depends on proper execution and consistent effort throughout the 12 minutes.

Q

Can I do the Cooper Test on a treadmill?

A

Yes, you can perform the Cooper Test on a treadmill, but you'll need to set the incline to 1% to compensate for the lack of air resistance. Keep in mind that treadmill results might slightly differ from outdoor testing due to factors like belt calibration and the mental aspect of running in place.

Q

How often should I take the Cooper Test?

A

For optimal tracking, perform the Cooper Test every 6-8 weeks. This gives your body enough time to adapt to training and show meaningful improvements. Testing too frequently can lead to fatigue and unreliable results. Always ensure full recovery between tests and avoid testing during periods of intense training.

Q

Should I warm up before the Cooper Test?

A

Absolutely! A proper warm-up is crucial for optimal performance and injury prevention. Spend 10-15 minutes doing light jogging, dynamic stretches, and a few short bursts of faster running. Your warm-up should raise your heart rate but not tire you out before the actual test.

Q

What's the best pacing strategy for the Cooper Test?

A

Start at a comfortably challenging pace that you can maintain for 12 minutes. Avoid starting too fast - many people make this mistake and struggle in the latter half. Aim to maintain a steady pace for the first 10 minutes, then increase your effort for the final 2 minutes if you have energy left.

Q

What factors can affect my Cooper Test performance?

A

Several factors can impact your performance: weather conditions (temperature, humidity, wind), time of day, fatigue levels, nutrition, hydration status, and running surface. For the most accurate results, try to test under similar conditions each time and avoid testing in extreme weather or when you're not fully recovered.

Q

Is the Cooper Test suitable for everyone?

A

While the Cooper Test is generally safe for healthy individuals, it's a maximal effort test that may not be suitable for everyone. If you're new to exercise, over 40, have any health conditions, or haven't exercised regularly, consult your healthcare provider before attempting the test. Consider starting with submaximal tests if you're building up your fitness level.

Q

How can I improve my Cooper Test score?

A

To improve your score, focus on a mix of training types: endurance runs to build aerobic base, interval training to improve speed and VO2 Max, and tempo runs to enhance lactate threshold. Also incorporate adequate rest, proper nutrition, and recovery days. Consistent, progressive training over 6-8 weeks typically shows noticeable improvements.