# Cat BMI Calculator, Formula, Calculation & Example

## Cat BMI Calculator

The fluffy nature of cats can make it difficult to know when your cat is getting too much. It is not enough to weigh your cat. A healthy weight for your cat depends on many factors, including its age, breed, and sex. Our cat BMI calculator will help you answer the burning question, “Is my cat overweight?” Regardless of these factors, all cats are different. You only need to take two measurements.

Domestic cats are becoming more obese. It is hard to resist our feline friends, especially when they want a snack. So, we might end up feeding them too much. You don’t have to worry if that is the case. This article will give you tips to help your cat lose weight.

## How do you measure your cat’s BMI?

The Feline Mass Index calculates your cat’s BMI based upon its proportions. It’s simple to use and only requires two measurements. These are the steps to use it:

2. Take measurements of your cat’s rib cage. You should measure your cat’s rib cage at the 9th level. This is located between the cat and his front legs.
3. Measure the length of the lower leg of your cat from the knee to its ankle.
4. Enter the measured values into our cat BMI calculator. This formula will give you the result:

``` FBMI = (((rib cage/0.7062) - leg length )/0.9156) - leg length. ```

To make it easier to use our cat weight calculator, we have created a picture showing how to measure your cat.

## What does the result actually mean?The FBMI ranges

There are five BMI ranges that can be used by humans. However, the number of BMI ranges was reduced to four for cats. We present below the FBMI Chart.

FBMIInterpretation<15Underweight15-29.9Normal weight30-42Overweight>42Obese

Let’s look at an example to clarify the situation. The FBMI of a cat with a 14 inch rib cage circumference and a 2 inch lower back leg is 44.4. If we change the FBMI value in the calculator to 29, which is within the healthy weight range (which is about 10 inches), the calculator will tell us that the target circumference for the cat’s rib cage is approximately 10 inches.