How to Calculate Body Fat on Eufy

This guide walks you through how to calculate body fat on Eufy using the Eufy Smart Scale and companion app. You’ll learn setup, measurement best practices, and how to interpret your results for better health tracking.

Key Takeaways

• Eufy smart scales use bioelectrical impedance (BIA) to estimate body fat percentage. A small electrical current passes through your body to measure resistance, which helps calculate fat vs. lean mass.
• Consistency is key for accurate readings. Weigh yourself at the same time each day—ideally in the morning before eating or drinking—and under similar conditions.
• The Eufy app syncs automatically with your scale. Download the EufySecurity app, create an account, and pair your scale via Bluetooth for seamless data tracking.
• Body fat results are estimates, not medical diagnostics. While useful for trends, they should not replace professional medical assessments.
• Hydration, food intake, and exercise affect readings. Avoid measuring immediately after workouts, meals, or showers for more reliable data.
• Multiple users can be set up on one scale. The app supports profiles for family members, with automatic recognition based on weight and body composition.
• Regular monitoring helps track fitness progress. Use weekly averages rather than daily fluctuations to assess real changes in body fat over time.

How to Calculate Body Fat on Eufy: A Complete Step-by-Step Guide

If you’ve recently purchased a Eufy smart scale—or you’re thinking about upgrading your bathroom setup—you’re probably excited about tracking more than just your weight. One of the most valuable features of Eufy scales is their ability to estimate your body fat percentage. But how exactly does it work, and how can you make sure you’re getting accurate results?

In this comprehensive guide, we’ll walk you through everything you need to know about how to calculate body fat on Eufy. From setting up your scale and syncing it with the app, to understanding your results and troubleshooting common issues, you’ll learn how to use this tool effectively for long-term health and fitness tracking.

Whether you’re trying to lose weight, build muscle, or simply stay informed about your body composition, knowing your body fat percentage can be a game-changer. Unlike the number on the scale, body fat percentage gives you a clearer picture of your overall health. And with Eufy’s smart technology, it’s easier than ever to monitor this important metric at home.

Let’s dive in and get you started on the right foot—literally.

What Is Body Fat Percentage and Why Does It Matter?

Before we get into the technical steps, it’s important to understand what body fat percentage actually means and why it’s worth tracking.

Body fat percentage is the total mass of fat in your body divided by your total body weight. It’s expressed as a percentage. For example, if you weigh 150 pounds and your body fat percentage is 20%, that means 30 pounds of your weight comes from fat, and the remaining 120 pounds comes from muscle, bone, organs, and other lean tissues.

Unlike body mass index (BMI), which only considers height and weight, body fat percentage gives a more accurate picture of your body composition. Two people can have the same BMI but very different body fat levels—one might be muscular and lean, while the other might carry more fat.

Knowing your body fat percentage helps you:
– Set realistic fitness goals
– Track progress during weight loss or muscle-building phases
– Identify potential health risks (high body fat is linked to conditions like diabetes and heart disease)
– Adjust your diet and exercise routine based on real data

For most adults, healthy body fat ranges are:
– Men: 10–20%
– Women: 20–30%

Athletes and highly active individuals may fall below these ranges, while older adults or those with sedentary lifestyles may be on the higher end. The key is consistency and improvement over time—not hitting a specific number overnight.

How Eufy Smart Scales Measure Body Fat

Eufy smart scales use a technology called bioelectrical impedance analysis (BIA) to estimate body fat percentage. Here’s how it works:

When you step on the scale, it sends a very low, safe electrical current through your body—specifically from one foot to the other. This current travels more easily through water and muscle (which are good conductors) than through fat tissue (which resists the current).

The scale measures how quickly the current passes through your body. Based on this resistance (impedance), along with your height, weight, age, and gender (inputted in the app), the scale calculates an estimated body fat percentage.

It’s important to note that BIA is not 100% accurate—it’s an estimate. Factors like hydration, recent food intake, and skin temperature can influence the reading. However, when used consistently under the same conditions, it’s a reliable tool for tracking trends over time.

Eufy scales also measure other metrics like:
– Muscle mass
– Bone mass
– Visceral fat
– Basal metabolic rate (BMR)
– Body water percentage

All of these are synced to the Eufy app, giving you a full picture of your body composition.

Step 1: Unbox and Set Up Your Eufy Smart Scale

Getting started with your Eufy scale is simple, but taking the time to set it up correctly ensures accurate readings from day one.

Unbox the Scale

When you open the box, you’ll find:
– The Eufy smart scale
– 4 AAA batteries (usually pre-installed)
– A quick start guide
– A warranty card

Remove all packaging materials and place the scale on a hard, flat surface. Avoid placing it on carpet or uneven flooring, as this can affect accuracy.

Install or Check Batteries

Most Eufy scales come with batteries already installed. To check, flip the scale over and open the battery compartment. If the batteries are low or missing, insert 4 new AAA batteries, making sure to match the + and – symbols.

Turn On the Scale

Press the power button (usually on the bottom or side) or simply step on the scale to wake it up. The display should light up and show “0.0” when ready.

Download the EufySecurity App

To access body fat and other advanced metrics, you’ll need the EufySecurity app. It’s available for free on the Apple App Store (iOS) or Google Play Store (Android).

Download and install the app on your smartphone or tablet.

Create an Account

Open the app and tap “Sign Up” to create a new account. You’ll need to provide:
– A valid email address
– A secure password
– Your country/region

Verify your email if prompted.

Pair the Scale with the App

1. Open the EufySecurity app and tap the “+” icon to add a new device.
2. Select “Smart Scale” from the list of devices.
3. Make sure your phone’s Bluetooth is turned on.
4. Follow the on-screen instructions to put the scale in pairing mode (usually by stepping on it or pressing a button).
5. The app will search for nearby devices. Select your scale when it appears.
6. Confirm the pairing code if prompted.

Once connected, the scale and app will sync automatically whenever you step on the scale and your phone is nearby.

Step 2: Set Up Your User Profile

To get accurate body fat readings, the scale needs to know a few things about you. This information helps it calculate your body composition more precisely.

Enter Personal Details

In the Eufy app:
1. Tap on your profile or the “Me” tab.
2. Select “User Profile” or “Add User.”
3. Enter the following details:
– Name
– Gender
– Date of birth
– Height (in feet/inches or centimeters)
– Activity level (sedentary, lightly active, active, very active)

These inputs are crucial because body fat calculations depend on age, gender, and body size. For example, women naturally carry more essential fat than men, and older adults tend to have higher body fat percentages.

Set a Goal (Optional)

You can also set fitness goals in the app, such as:
– Losing weight
– Reducing body fat
– Gaining muscle

The app will track your progress and give you insights over time.

Add Multiple Users

If other family members will use the scale, you can add up to 16 user profiles. The scale uses weight and body composition to automatically recognize who is stepping on it. Each user gets their own data history and trends.

To add a new user:
1. Go to “User Management” in the app.
2. Tap “Add User” and fill in their details.
3. Have them step on the scale once to register their profile.

Step 3: Take Your First Body Fat Measurement

Now that your scale is set up and synced, it’s time to take your first reading. Follow these steps for the most accurate result.

Prepare for the Measurement

For consistent and reliable readings:
– Weigh yourself at the same time each day (morning is best).
– Use the scale on a hard, flat surface (not carpet).
– Be barefoot—shoes and socks can interfere with the electrical signal.
– Ensure your feet are clean and dry.
– Avoid measuring right after eating, drinking, exercising, or showering.

Step Onto the Scale

1. Stand still in the center of the scale with your feet covering the electrodes (usually the front corners).
2. Keep your arms at your sides—don’t hold onto anything.
3. Stay still until the measurement is complete. This usually takes 10–15 seconds.
4. The scale will display your weight first, then cycle through other metrics like body fat, muscle mass, and BMI.

Check the App for Full Results

After stepping off, open the EufySecurity app. Your latest measurement should appear under “Recent Data” or “Body Composition.”

Tap on the reading to see a detailed breakdown, including:
– Body fat percentage
– Muscle mass
– Bone mass
– Visceral fat level
– Body water percentage
– BMR (calories your body burns at rest)

The app also shows trends over time, so you can see how your body fat changes week by week.

Tips for Accurate Body Fat Readings

Even with the best technology, accuracy depends on how you use the scale. Here are some practical tips to get the most reliable results.

Weigh Yourself at the Same Time Daily

Your body weight and composition fluctuate throughout the day due to food, water, and activity. For consistency, measure yourself every morning after using the bathroom and before eating or drinking.

Stay Hydrated—But Not Too Much

Dehydration can make your body fat reading appear higher, while overhydration (like after drinking a lot of water) can make it seem lower. Aim for normal, steady hydration.

Avoid Measuring After Exercise

Intense workouts can temporarily alter your body water levels and muscle glycogen, skewing the results. Wait at least 2–3 hours after exercising before stepping on the scale.

Don’t Measure Right After Eating

Food in your digestive system adds weight and can affect impedance readings. Wait at least 2 hours after a meal.

Use the Scale on a Hard Surface

Carpet or uneven flooring can cause instability and inaccurate readings. Always use the scale on tile, wood, or another hard, level surface.

Calibrate the Scale Regularly

If your readings seem off, try calibrating the scale:
1. Step on and off quickly to reset it.
2. Or, follow the calibration steps in the app (usually under “Device Settings”).

Track Trends, Not Daily Numbers

Don’t obsess over daily fluctuations. Instead, look at weekly or monthly averages. A single high or low reading doesn’t mean much—consistent trends do.

Understanding Your Body Fat Results

Once you have your body fat percentage, what does it actually mean? Let’s break it down.

Healthy Body Fat Ranges

Here are general guidelines for healthy body fat percentages:

| Gender | Essential Fat | Athletes | Fitness | Average | Obese |
|——–|—————|——–|———|———|——-|
| Men | 2–5% | 6–13% | 14–17% | 18–24% | 25%+ |
| Women | 10–13% | 14–20% | 21–24% | 25–31% | 32%+ |

These are estimates and can vary based on age, genetics, and activity level.

What If Your Body Fat Is High?

If your reading is above the “average” range, don’t panic. Focus on gradual improvement through:
– Regular exercise (especially strength training and cardio)
– A balanced, nutrient-rich diet
– Adequate sleep and stress management

Small, consistent changes lead to lasting results.

What If Your Body Fat Is Low?

Very low body fat can be risky, especially for women. It may lead to hormonal imbalances, fatigue, or weakened immunity. If you’re an athlete or bodybuilder, work with a coach or nutritionist to ensure you’re maintaining health while optimizing performance.

Compare with Other Metrics

Body fat percentage is just one piece of the puzzle. Look at it alongside:
– Weight trends
– Muscle mass
– Waist circumference
– Energy levels and performance

A holistic view gives you a better understanding of your health.

Troubleshooting Common Issues

Even with the best setup, you might run into a few hiccups. Here’s how to fix common problems.

Scale Won’t Turn On

– Check the batteries—replace if low.
– Make sure the battery compartment is closed securely.
– Try pressing the power button or stepping on the scale firmly.

App Not Syncing

– Ensure Bluetooth is enabled on your phone.
– Open the Eufy app and check if the scale is listed under “My Devices.”
– Restart the app and try syncing again.
– Move closer to the scale (within 10 feet).

Inconsistent Readings

– Confirm you’re using the scale under the same conditions each time.
– Check that the surface is flat and hard.
– Make sure your feet are clean and dry.
– Avoid measuring after showers, meals, or workouts.

Wrong User Detected

– If the scale misidentifies you, go to “User Management” in the app and adjust the weight range for each profile.
– Have each user step on the scale once to re-register their data.

Body Fat Reading Seems Off

– Remember: BIA is an estimate. If you’re very muscular, dehydrated, or have a medical condition, results may vary.
– Compare with other methods like skinfold calipers or DEXA scans if needed.
– Focus on trends over time, not single readings.

How to Track Progress Over Time

The real power of the Eufy scale comes from long-term tracking. Here’s how to make the most of your data.

Use the App’s Trend Graphs

The EufySecurity app shows your body fat percentage over days, weeks, and months. Look for downward trends (if you’re aiming to lose fat) or stable levels (if you’re maintaining).

Set Weekly Check-Ins

Instead of checking daily, review your data once a week. This reduces stress from normal fluctuations and gives a clearer picture of progress.

Take Progress Photos

Pair your numbers with visual evidence. Take front, side, and back photos every 4–6 weeks in the same lighting and clothing.

Adjust Your Routine

If your body fat isn’t changing, consider:
– Increasing protein intake
– Adding strength training
– Reducing processed foods
– Getting more sleep

Use the data to guide your decisions—not discourage you.

Conclusion

Learning how to calculate body fat on Eufy is a smart step toward better health and fitness. With the right setup, consistent habits, and a clear understanding of your results, your Eufy smart scale becomes a powerful tool for tracking body composition.

Remember, the number on the scale is just one metric. Body fat percentage gives you deeper insight into your health, helping you make informed decisions about diet, exercise, and lifestyle.

By following this guide—setting up your scale correctly, measuring under consistent conditions, and reviewing trends over time—you’ll get the most accurate and useful data possible.

So step on, stay consistent, and let your Eufy scale help you reach your goals—one healthy habit at a time.