## What is the BMI formula?

Formula: weight (kg) / [height (m)]2. With the metric system, the formula for BMI is weight in kilograms divided by height in meters squared. Because height is commonly measured in centimeters, divide height in centimeters by 100 to obtain height in meters.

**How do you calculate the power factor of a 3 phase motor?**

How do I calculate a 3-phase motor horsepower? You can use this equation HP = amperage × motor voltage × power factor × efficiency × 1.73205 / 746 to calculate the power rating of a 3-phase motor in horsepower.

**What is a healthy BMI for a woman?**

between 18.5 and 24.9

BMI ranges for women

A healthy BMI for women falls between 18.5 and 24.9. Find your BMI in the chart below to see your weight classification. If you’re pregnant or plan on becoming pregnant, you can calculate your recommended weight gain using your pre-pregnancy BMI.

### How do you calculate power factor improvement?

Following are the important electrical formulas used in Power factor improvement calculation.

…

Active Power (P) in Watts:

- kW = kVA x Cosθ
- kW = HP x 0.746 or (HP x 0.746) / Efficiency …
- kW = √ ( kVA2 – kVAR2)
- kW = P = V x I Cosθ …
- kW = P = √3x V x I Cosθ …

**What are the 3 steps to calculating your BMI?**

To calculate your body mass index (BMI), start by measuring your height in meters and then squaring it. Then, divide your weight in kilograms by your height in meters squared to find your BMI. If you’re using imperial measurements, start by measuring your height in inches and then squaring it.

**Why do we calculate BMI?**

BMI is a reliable indicator of body fatness for most people. It is used to screen for weight categories that may lead to health problems.

#### What is 0.8 power factor?

A common industry standard generator power factor rating is 0.8, or 80%, meaning these loads can use 80% of the generator’s power supply. A majority of the time, generators that use a Power Factor (or PF for short) that have a power factor rating of 0.8 are 3-phase generators.

**Why do we calculate 1.73 for 3-phase power?**

It’s because the voltage between the phases is 1.732 times the phase to neutral voltage.

**Why do Asians have lower BMI?**

Even when compared to white people of similar age, sex and body fat, Asian Americans tend to have consistently lower BMI because of their “different body build,” said Dr.

## What is a good BMI by age?

Average BMI for Adolescents

The average BMI for a 13-year-old boy is 21.9; for a girl of the same age it’s slightly higher, at 22.1, The healthy BMI range for 13-year-olds is 15.5 to 22.6 for boys and 15.3 to 23.3 for girls. By the age of 18, the average BMI for a boy is 26.1, and for a girl, it’s 24.6.

**How do you calculate power factor in Excel?**

Power factor correction calculations for power system – MS Excel Spreadsheet

- Q1 = I losses + Cu. losses
- Q2 = PkW · (Tanφ1 – Tanφ2)
- I losses = 2% · S. tr
- Cu losses = USC% · S. tr
- Q = Q1 + Q.

**How do you calculate kVAR for power factor correction?**

The following formulas can be used to calculate the capacitance of a capacitor in farad and microfarad for power factor correction. Additionally, the required capacitor bank in kVAR can be calculated as follow: Required Capacitor kVAR = P in kilowatts (Tan θ1 – Tan θ2) kVAR = C x f x V2 ÷ (159.155 x 106) … in kVAR.

### How do I calculate BMI in Excel?

To testing this BMI function, write on the cell B1: =BMI(55,170), then Press Enter. If the Result is 19.03, it means our custom function is working well. Also you can try calculate your BMI then find out your BMI classification by looking at BMI Classification table.

**Why is 703 used in the BMI formula?**

The formula for BMI is weight in kilograms divided by height in meters squared. If height has been measured in centimeters, divide by 100 to convert this to meters. When using English measurements, pounds should be divided by inches squared. This should then be multiplied by 703 to convert from lbs/inches2 to kg/m2.

**How accurate is BMI?**

Even though it is often used as one, it is not a true diagnostic of body fatness or of an individual’s overall health. As most of us fitness-focused folks have likely heard, BMI is far from a perfect measurement.

#### What is ideal BMI?

If your BMI is 18.5 to 24.9, it falls within the normal or Healthy Weight range. If your BMI is 25.0 to 29.9, it falls within the overweight range. If your BMI is 30.0 or higher, it falls within the obese range.

**Is a power factor of 1 possible?**

In most ac circuits there is never power factor equal to one because there is always some impedance (interference) on the power lines.

**What is a 1.0 power factor?**

An ‘ideal’ device has a power factor of 1.0 and consumes all the power that it draws. It would present a load that is linear and entirely resistive: that is, one that remains constant irrespective of input voltage, and has no significant inductance or capacitance.

## What is the power factor for 3-phase?

Power factor is defined as a ratio between real power and apparent power. If current and voltage are in phase, the power factor is 1. In the 3-phase circuit, current and voltage are not in phase; thus the power factor will be anywhere between 0 and 1.

**How do I convert kVA to kW?**

kVA = kw / PF

PF = Power factor.

**Which race has the highest BMI?**

Obesity and African Americans

- African American women have the highest rates of obesity or being overweight compared to other groups in the United States.
- In 2018, non-Hispanic blacks were 1.3 times more likely to be obese as compared to non-Hispanic whites.

### Why is obesity low in Japan?

The average person in Japan is thought to consume approximately 200 fewer calories than an average American person daily, which is thought to be due to higher food prices and traditional dietary habits in Japan, which are often healthier.

**Does BMI change with age?**

BMI changes substantially with age. After about 1 year of age, BMI-for-age begins to decline and it continues falling during the preschool years until it reaches a minimum around 4 to 6 years of age. After 4 to 6 years of age, BMI-for-age begins a gradual increase through adolescence and most of adulthood.

**What is a good BMI for 70 year old?**

between 18 and 24.9

Doctors recommend most adults keep their BMI between 18 and 24.9.

#### What is the unit of power factor?

The power factor in a single-phase circuit (or balanced three-phase circuit) can be measured with the wattmeter-ammeter-voltmeter method, where the power in watts is divided by the product of measured voltage and current.