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# How do you calculate Harris Benedict equation?

## How do you calculate Harris Benedict equation?

To calculate your BMR, you would usually use the Harris-Benedict equation:

1. For women, it’s BMR = 10 ⨉ weight (kg) + 6.25 ⨉ height (cm) – 5 ⨉ age (years) – 161 .
2. For men, the formula is BMR = 10 ⨉ weight (kg) + 6.25 ⨉ height (cm) – 5 ⨉ age (years) + 5.

## What is BMR equation?

Calculate Basal Metabolic Rate Men: BMR = 88.362 + (13.397 x weight in kg) + (4.799 x height in cm) – (5.677 x age in years) Women: BMR = 447.593 + (9.247 x weight in kg) + (3.098 x height in cm) – (4.330 x age in years)

Is the Harris-Benedict equation accurate?

Of the predictive equations tested, the Harris-Benedict equation (mean difference: -14.8 kcal/day, RMSPE: 195.8 kcal/day, mean % difference: 0.1%) was the most accurate and precise, but accuracy in prediction of the equation were only 35.7%.

### How is adjusted BMR calculated?

Men: BMR = 66 + (13.7 x wt in kg) + (5 x ht in cm) – (6.8 x age in years) Women: BMR = 655 + (9.6 x wt in kg) + (1.8 x ht in cm) – (4.7 x age in years) *note: 1 inch = 2.54 cm and 1 kilogram = 2.2 lbs. Example: You are a 30 year old female. You are 5’6″ tall (167.6 cm) and weigh 120 pounds (54.5 kg).

### What is the Harris Benedict equation used for?

The Harris Benedict equation is a calorie formula using the variables of height, weight, age, and gender to calculate basal metabolic rate (BMR). This is more accurate than calculating calorie needs based on total body weight alone.

Which BMR equation is best?

Some people also use the Mifflin-St Jeor formula to calculate their BMR:

• Male BMR = (9.99 × weight [kg]) + (6.25 × height [cm]) − (4.92 × age [years]) + 5.
• Female BMR = (9.99 × weight [kg]) + (6.25 × height [cm]) − (4.92 × age [years]) − 161.

#### What is a good BMR?

What is my average BMR? Most men have a BMR of about 1,600 to 1,800 kCals a day. Most women have a BMR of 1,550 kCals a day. But this is variable.

#### What is the best BMR formula?

Nowadays, the Mifflin-St Jeor equation is believed to give the most accurate result and, is therefore what we used in this calculator. This BMR formula is as follows: BMR (kcal / day) = 10 * weight (kg) + 6.25 * height (cm) – 5 * age (y) + s (kcal / day) , where s is +5 for males and -161 for females.

What is Harris Benedict equation used for?

## What is a normal EER?

‘ The physical activity coefficients are used in the EER equations to estimate energy requirements and are based on ranges of physical activity levels. The Physical Activity Level categories were defined as sedentary (PAL 1.0-1.39), low active (PAL 1.4-1.59), active (PAL 1.6-1.89), and very active (PAL 1.9-2.5).

## What is the most accurate BMR formula?

Mifflin-St Jeor equation
Nowadays, the Mifflin-St Jeor equation is believed to give the most accurate result and, is therefore what we used in this calculator. This BMR formula is as follows: BMR (kcal / day) = 10 * weight (kg) + 6.25 * height (cm) – 5 * age (y) + s (kcal / day) , where s is +5 for males and -161 for females.

How do you calculate ideal body weight?

Ideal body weight is computed in men as 50 + (0.91 × [height in centimeters − 152.4]) and in women as 45.5 + (0.91 × [height in centimeters − 152.4]). A simple alternative would be to compute ideal body weight as the weight corresponding to an ideal body mass index of 22 kg/m2.

### When to use IBW and adjusted body weight?

Ideal Body Weight & Adjusted Body Weight Ideal body weight (IBW) and adjusted body weight are frequently used clinically to adjust drug dosing, help estimate renal function and the pharmacokinetics in morbidly obese patients. The most common IBW equation used is the Devine formula.

### Which is the correct formula for adjusted body weight?

Adjusted body weight. AjBW = adjusted body weight: AjBW = IBW + 0.4 ( ABW – IBW) Reference: 1) Bauer LA. Applied clinical pharmacokinetics. New York: McGraw Hill, Medical Publishing Division; 2001:93-179. 2) Winter, M.E., 2004. Basic pharmacokinetics.

Can a BMR equation be used for an overweight person?

As the BMR equations do not attempt to take into account body composition, identical results can be calculated for a very muscular person, and an overweight person, who are both the same height, weight, age and gender. As muscle and fat require differing amounts of calories to maintain, the TEE estimates will not be accurate for such cases.

#### How to calculate lean body mass ( IBW ) from height?

LBW (Males) = (0.3281 x Weight in kg) + (0.33939 x Height in cm) – 29.5336 LBW (Females) = (0.29569 x Weight in kg) + (0.41813 x Height in cm) – 43.2933 Using the example above: (55 inch male patient): IBW= 36.9 kg Reference: Hume R. Prediction of lean body mass from height and weight. J Clin Path (1966), 19, 389.