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Free Body Fat Calculator: Get Your Number, Then Get a Plan

Understanding your body composition is the first step toward real, lasting results. Your body fat percentage tells you far more than a scale ever could. Unlike weight alone, body fat percentage shows how much of your body is fat versus lean mass; muscle, bone, and water. Building lean muscle through strength training is the most effective way to shift that number in the right direction, and keep it there.

Use the tool below to discover your true baseline

Nielsen Fitness Body Fat Calculator

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Before using the data obtained using this calculator, please consult with doctor.

How to Get Your Accurate Results with a body fat calculator

Step 1: Pick Your Tool

Step 2: Measure Snug

Step 3: Choose Your Method

Select your device from the dropdown menu. For the highest accuracy, we recommend a soft measuring tape or body fat calipers.

Take your measurements while standing. Keep the tape or caliper snug against the skin, but not tight.

Click “Get Your Results” to calculate your baseline.

Step 1: Pick Your ToolStep 2: Measure SnugStep 3: Choose Your Method

Select your device from the dropdown menu. For the highest accuracy, we recommend a soft measuring tape or body fat calipers.

Take your measurements while standing. Keep the tape or caliper snug against the skin, but not tight.

Click "Get Your Results" to calculate your baseline.

Track Specific Areas of Fat Loss

One of the major advantages of this tool is that it can help you track fat loss in specific areas of your body. By measuring consistently over time, you’ll begin to notice changes in different regions like the waist, hips, or thighs, even if the scale doesn’t move much. This is especially valuable if you’re strength training and gaining muscle while losing fat.

Our clients often use this calculator in between personal training sessions to stay accountable and motivated. It’s a great way to see measurable results and stay focused on your goals.

Why the Scale Is Lying to You

Many people focus on weight loss without understanding what their weight is actually made up of. Two people can weigh the same but have very different levels of body fat. That’s why using a body fat calculator gives you more accurate information about your health and fitness.

High body fat levels are linked to a greater risk of health issues like heart disease, diabetes, and joint problems. On the other hand, having a healthy amount of body fat supports hormone function, protects your organs, and helps regulate body temperature. Finding the right balance is important, and this tool helps you get there.

This Is Where Weight Training Wins

One of the major advantages of this tool is that it can help you track fat loss in specific areas of your body. By measuring consistently over time, you’ll begin to notice changes in different regions like the waist, hips, or thighs, even if the scale doesn’t move much. This is especially valuable if you’re strength training and gaining muscle while losing fat.

Our clients often use this calculator in between personal training sessions to stay accountable and motivated. It’s a great way to see measurable results and stay focused on your goals.

Nielsen Fitness In-home, studio, and virtual personal trainer toronto, collingwood, london, hamilton, and ottawa.

Ready to Change That Number? Let's Talk

Your body fat percentage is just a number until you have a plan to change it. That’s where we come in.

At Nielsen Fitness, weight training is at the core of everything we do — because building lean muscle is the most effective way to lower body fat, boost your metabolism, and keep the results you work for. Whether you train in-home in Toronto, Collingwood, London, Hamilton, or Ottawa, or connect with one of our virtual personal trainers from anywhere, we’ll build a program around your results — not a generic template.

Book your free first workout and let’s turn that number into a plan.

We’d love to hear from you!

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You can also reach us via email to info@nielsenfitness.com or phone us at: 1-855-4321FIT (1.855.432.1348).