Xiaomi Electronic Floor Scale Calibration: A Complete Guide with Step-by-Step Instructions

Xiaomi’s electronic floor scales are a popular weight control device, but even the most reliable technique requires periodic adjustment. If your scales start showing inaccurate data, overestimating or underestimating weight, the problem is most often solved by simple calibration. In this article, we will discuss why readings are lost, how to correctly calibrate the scales Xiaomi Mi Body Composition Scale 2, Xiaomi Smart Scale 2 and other models, as well as give tips for caring the device.

Calibration is the process of tuning internal weight sensors to accurately measure weight. Unlike mechanical models, Xiaomi electronic models use strain gauges that can lose accuracy over time due to mechanical stress, temperature changes or improper storage. Don't rush to throw the device away: 90% of the time, the problem is solved in 10 minutes without going to the service center.

Why Xiaomi scales show the wrong weight: the main reasons

Before calibrating, it is important to understand what caused the failure, and most often users face the following problems:

• 📉 Battery discharge – weak battery charge (especially if you use non-original) leads to unstable operation of sensors.
• 🌡️ Sharp temperature changes – if the scales were stored on the balcony or in an unheated room, the platform material could deform.
• 🏋️ Exceeding maximum load – Xiaomi models are usually designed for 150-180 kg, but regular weighing of heavy objects (such as weights) knocks the calibration.
• 📱 Application Sync Failure – If the scales are connected to Mi Fit or Zepp Life, errors in the data may occur due to incorrect profile settings.
• 🧲 Exposure to magnetic fields – placement near speakers, microwaves or other appliances distorts sensor readings.

Sometimes the problem is software, for example, when you update the firmware, the scales can start to "glutch," which is where factory resets or flashing through the official app help, but most often the mechanical centering of the sensors is the one that the calibration is designed to fix.

⚠️ Note: If Xiaomi scales show a weight of 0 kg or give an Err error when turned on, the problem may be damage to the strain gauges.

Calibration Preparation: What to Do Before Setup

To make the process successful, follow a few simple steps:

Make sure the batteries are charged (or replace them with new ones)

Place the scales on a flat, hard surface (not on a carpet or linoleum)

Remove dust and dirt from the platform (especially in corners)

Check that there are no mechanical damages on the scales (cracks, chips)

Turn off the scales from the app (if they are synchronized)

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The optimal surface for calibration is a tile floor or a countertop. Avoid soft coatings: they bend under weight, which distorts the readings of the sensors. Also make sure that there are no sources of vibration (washing machine, air conditioner) nearby - they can affect accuracy.

If you calibrate the Xiaomi Mi Body Composition Scale 2 with body composition analysis, note that they need a “training sample” to work properly, which means that after calibration you will have to do 2-3 control weighings with a known weight (for example, using weights).

Xiaomi Mi Body Composition Scale 2

Xiaomi Smart Scale 2

Xiaomi Mi Scale (First Generation)

Another Xiaomi model

Not Xiaomi (another brand)-->

Methods of calibration of electronic scales Xiaomi

There are three main methods of adjusting accuracy, and the choice depends on the weight model and the cause of the failure:

1. Automatic calibration: This is triggered when you first turn on or when you reset the settings. Libras set up the sensors themselves, but this method doesn't work on all models.
2. Manual calibration using a reference is a versatile method, suitable for most Xiaomi scales. Requires weights or an object with a known weight.
3. Calibration via app – available for smart scales synchronized with Mi Fit or Zepp Life.

Let us consider each method in detail.

1. Automatic calibration (for models with self-tuning)

This method works for the Xiaomi Mi Body Composition Scale 2 and some other models with firmware newer than 1.2.0.

1. Turn on the scales by pressing the platform with your foot or button (if any).
2. Wait for the display to appear 0.00.
3. Hold the center of the platform for 5-7 seconds until the CAL or --- message appears.
4. Remove your leg and wait until the process is complete (0.00 or OK will appear on the screen).

If you lie after that, then proceed to manual calibration.

Manual calibration with reference (universal method)

This is the most reliable method that works for all electronic scales, including Xiaomi Smart Scale 2 and budget models. You will need an item with an exact known weight - a 10 kg weight or 20 kg weight is ideal.

• 📦 Bottle of water 5 l (weight) ~5kg) + summation.
• 🥛 Package of sugar or flour (usually 1 kg or 2 kg).
• 💼 Books with a book (weigh it in advance on other scales).

Step instructions:

1. Turn the scales on and wait for 0.00 to appear.
2. Carefully place the reference load on the center of the platform (do not shift!).
3. For example, if you put a weight on 10 kg and the scale showed 9.7 kg, the difference is 0.3 kg.
4. Enter calibration mode: For most Xiaomi models: press and hold the on button (or center of the platform) for 10-15 seconds until CAL or --- appears. For Mi Body Composition Scale 2: quickly press the scales with your foot three times.

CAL

Take off the load and wait for zero.

If the difference between the standard and the readings of the weights exceeds 0.5 kg, repeat the procedure 2-3 times. Sometimes multi-stage calibration with different loads is required (for example, first 5 kg, then 15 kg).

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If you don’t have weights, use the control weighing method: weigh on other scales (for example, in a clinic or gym), remember the exact weight and calibrate Xiaomi’s home scales to this value.

3. Calibration via Mi Fit/Zepp Life app

For Xiaomi smart scales synchronized with a smartphone, software customization is available, which is less accurate than manual calibration, but is convenient for minor adjustments.

1. Open the Mi Fit or Zepp Life app.
2. Go to the Profile section → Devices → [Your scales].
3. Select Settings of the scales → Calibration (or Data Reset).
4. Follow the hints on the screen. You usually need to stand on a scale and confirm the current weight in the app.

Note that this is not a substitute for mechanical calibration of sensors, but only for correcting the data in the application. If the scales are physically lying, software tweaking won't help.

Table: Frequent calibration errors and how to avoid them

How to check the accuracy of the scales after calibration

To make sure that the setting is successful, perform the test:

1. Weigh the reference weight (e.g. 10 kg weight) 3 times in a row. The readings shall not differ by more than ± 0.1 kg.
2. Try to stand on the scale in different positions (closer to the edge, in the center).
3. Compare the readings with other weights (e.g., at a pharmacy or fitness club — ±0.5 kg.

If the scales pass the test, the calibration is done correctly, and if not, repeat the procedure or check the device for mechanical damage.

Xiaomi Weight Care Tips for Durability

To make the scales last longer and less often require calibration, follow simple rules:

• 🔋 Use original batteries – cheap analogues discharge quickly and can damage contacts.
• 🧹 Clean the sensors regularly - dust and dirt accumulate in the corners of the platform and distort the readings. Use a soft brush.
• 🌡️ Keep the scales in a dry place - humidity leads to corrosion of contacts. avoid bathroom.
• 🚫 Do not put scales on carpet or soft surfaces – this reduces the accuracy of sensors.
• 🔄 Calibrate every 3-6 months, even if the scales are working normally.

Critically, if Xiaomi scales fell from a height or were weighing more than 180 kg, the sensors could deform, in which case calibration will not help - it requires replacing the strain elements.

⚠️ Note: Do not use Xiaomi scales as a reference for other weights to calibrate, as this creates an "error accumulation effect." Always focus on certified weights or professional equipment.

FAQ: Frequent questions about Xiaomi's weight calibration

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Regular calibration (every 3-6 months) and proper care extend the life of Xiaomi scales by 2-3 times. If after all the manipulations accuracy is not restored, check the device for mechanical damage or contact the service center.