We Measured EMF Levels Inside a Tesla Model 3: Here’s What We Found

Electric vehicles are packed with electrical systems. Large battery packs, high-voltage wiring, electric motors, inverters, Bluetooth, Wi-Fi, cellular connectivity, touchscreen electronics, and charging systems are all operating in or around a vehicle where drivers may spend hours at a time.

That naturally raises a question:

What do electromagnetic field levels actually look like inside an electric vehicle?

Instead of relying on speculation, forum discussions, or measurements taken by someone else, we decided to test one ourselves.

For this experiment, we used a Tesla Model 3 and took electromagnetic field measurements at multiple locations in and around the vehicle. We also photographed the meter during testing so readers can see the actual measurements and where they were taken.

We wanted to answer a few straightforward questions:

• What EMF levels can we actually measure inside a Tesla Model 3?
• Are some areas of the vehicle noticeably higher than others?
• What happens near the floor, seats, dashboard, center console, and charging system?
• Do the readings change depending on what the vehicle is doing?
• And most importantly, how should these numbers actually be interpreted?

This is not a laboratory study, and one vehicle cannot represent every Tesla Model 3 or every electric vehicle. Our goal is much simpler: document a real-world test transparently, publish the measurements we observed, and separate what we actually measured from what we can reasonably conclude from those measurements.

Quick Summary

We tested electromagnetic fields around a Tesla Model 3 using an EMF meter and documented readings from multiple locations around the vehicle.

Rather than simply asking whether a Tesla “has EMF,” which it does because electrical and wireless systems naturally produce electromagnetic fields, the more useful question is what types of fields are present, how strong the measurements are, and where the highest readings occur.

Below, we’ll show you the testing equipment, our methodology, the original photographs, individual readings, and the areas of the Tesla Model 3 that produced the most interesting results.

Let’s start with exactly how we performed the test.

First Test: EMF Levels While the Tesla Model 3 Was Charging

We started our test with a situation that many Tesla owners probably don’t think twice about: sitting inside the vehicle while it is plugged in and charging.

With the Tesla Model 3 connected to the charger, we placed our EMF meter inside the vehicle near the front center console area.

The reading immediately caught our attention.

Our Measurement: 4,448 V/m

As shown in our original photograph, the meter displayed an electric field reading of approximately 4,448 volts per meter (V/m) at that particular location while the Tesla was connected to the charger.

That’s an important distinction. This photograph is showing an electric-field measurement, not a magnetic-field or radiofrequency measurement. EMF is a broad term, and different types of electromagnetic fields need to be measured and interpreted differently.

Why We Tested the Tesla While Charging

A Tesla Model 3 contains a large high-voltage battery system, but charging introduces another variable. Electrical energy is actively being transferred from the home’s charging equipment into the vehicle.

Some owners will plug their Tesla in and then remain inside for a while, whether they’re using the touchscreen, finishing a phone call, waiting for the charge level to increase, or simply sitting in the vehicle before going inside.

Our measurement shows why charging deserves to be tested separately from normal driving and an unplugged, stationary vehicle.

However, one reading should not be interpreted as proof that sitting in a charging Tesla is harmful. This is a real-world measurement from one Tesla Model 3, at one measurement location, under one set of conditions. Electric-field readings can also vary substantially with distance, grounding, nearby electrical equipment, the meter being used, and the exact charging setup.

So rather than drawing a conclusion from this number alone, we continued testing different areas and operating conditions.

Next, we wanted to see what happened to the readings once we moved unplugged the vehicle from charger.

What Happened When We Unplugged the Tesla?

Next, we disconnected the Tesla Model 3 from the charger and left the EMF meter in essentially the same center-console location.

The difference was immediate.

While charging, we recorded an electric-field reading of approximately 4,448 V/m. After unplugging the charging cable, the meter showed approximately 9 V/m.

That’s a reduction of roughly 99.8% at this measurement location.

Tesla Model 3 Test Condition	Electric Field Reading
Plugged in and charging	~4,448 V/m
Unplugged	~9 V/m

This comparison was one of the most interesting observations from our test because we changed one major condition: the vehicle went from being connected to the charging system to being disconnected from it.

However, this does not establish that the charger alone caused the entire difference. A controlled laboratory test would need to account for grounding, charging equipment, distance, vehicle state, nearby electrical sources, meter orientation, and repeated measurements.

What we can say is much simpler: at the location we tested, the electric-field reading was dramatically higher while the Tesla Model 3 was connected to the charger than after we unplugged it.

Testing the Cabin With the Tesla Unplugged and Stationary

Next, we tested the Tesla Model 3 while it was unplugged, powered on, and completely stationary.

This time, instead of placing the meter directly on the center console, we held it in the center of the cabin without allowing it to touch the vehicle’s interior surfaces. This gives us a better idea of the field levels around the space where an occupant would actually be sitting.

The readings were very low:

• Electric field: 0 V/m
• Magnetic field: approximately 0.2 mG

That’s dramatically different from the electric-field reading we observed near the center console while the vehicle was plugged in and charging.

It’s also important that we’re now looking at two separate measurements on the meter. The upper reading represents the electric field in volts per meter (V/m), while the lower reading represents the magnetic field in milligauss (mG).

At this particular moment, with the Model 3 stationary and unplugged, we did not detect a meaningful electric field at the meter’s position, and the magnetic-field reading was approximately 0.2 mG.

This gives us a useful stationary baseline.

The next question is where things get especially interesting: what happens to those readings once the Tesla actually starts moving?

What Happened While Driving at About 30 MPH?

Next, we tested the Tesla Model 3 while the vehicle was moving at roughly 30 mph.

For this measurement, the EMF meter was placed against the seat area inside the cabin while the car was in motion.

The reading changed noticeably compared with our stationary test.

• Electric field: 0 V/m
• Magnetic field: approximately 13.1 mG

That is a substantial increase from the approximately 0.2 mG magnetic-field reading we recorded while the vehicle was stationary and unplugged.

This suggests that the vehicle’s operating state matters. When the Tesla is moving, the electric motor, inverter, battery current, and other high-current electrical systems are actively working, and magnetic-field levels can change depending on acceleration, speed, load, and where the meter is positioned inside the vehicle.

It is important to keep the comparison precise. We are not claiming that 13.1 mG is the typical magnetic-field exposure for every Tesla Model 3 at 30 mph. This was one real-world reading from our vehicle, at one location, under one set of driving conditions.

What the test does show is that magnetic-field measurements inside the Model 3 can rise significantly when the vehicle transitions from stationary to moving.

At this point, our test was already showing three very different conditions:

Test Condition	Electric Field	Magnetic Field
Charging, center console	~4,448 V/m	Not documented in that photo
Unplugged and stationary, meter held in cabin	0 V/m	~0.2 mG
Driving at ~30 mph	0 V/m	~13.1 mG

 

That made the next part of the test especially important: does the magnetic-field reading stay around this level, or does it change depending on speed, acceleration, and where you sit inside the Tesla?

What Happened When We Slowed Down to About 15 MPH?

We then reduced the Tesla Model 3’s speed from approximately 30 mph to about 15 mph and took another magnetic-field measurement.

The reading dropped.

At approximately 15 mph, our meter showed:

• Electric field: 0 V/m
• Magnetic field: approximately 7.0 mG

For comparison, we had recorded approximately 13.1 mG at 30 mph and only 0.2 mG while the vehicle was stationary.

Vehicle Condition	Electric Field	Magnetic Field
Stationary, unplugged	0 V/m	~0.2 mG
Driving at ~15 mph	0 V/m	~7.0 mG
Driving at ~30 mph	0 V/m	~13.1 mG

 

This was an interesting pattern in our test. As the vehicle went from stationary to 15 mph and then approximately 30 mph, the magnetic-field readings we captured increased.

That does not establish a simple rule that doubling the Tesla’s speed doubles the magnetic field. Motor load, acceleration, regenerative braking, battery current, road conditions, meter position, and other variables can all affect an instantaneous measurement.

Still, our photographs document a clear observation from this particular test: the Model 3 produced substantially different magnetic-field readings depending on its operating condition.

Next, we wanted to see what happened when the Tesla reached higher road speeds.

At About 60 MPH, the Magnetic Field Was Still Elevated

We continued the test at approximately 60 mph, again holding the meter inside the Tesla Model 3 cabin.

At this speed, we recorded a magnetic-field reading of approximately:

12.7 mG

Interestingly, this was slightly lower than the 13.1 mG reading we captured around 30 mph.

Our measurements so far looked like this:

Tesla Model 3 Condition	Magnetic Field
Stationary, unplugged	~0.2 mG
Driving at ~15 mph	~7.0 mG
Driving at ~30 mph	~13.1 mG
Driving at ~60 mph	~12.7 mG

This is important because our results do not show a simple relationship between speed and magnetic-field strength.

The readings increased substantially once the Tesla began moving, but going faster did not necessarily produce a higher reading. In fact, our measurement at 60 mph was slightly lower than the one we captured around 30 mph.

That makes sense when considering how an electric vehicle operates. Vehicle speed is only one variable. Acceleration, motor load, battery current, regenerative braking, road conditions, and meter location could all influence an instantaneous magnetic-field measurement.

So the more accurate takeaway from our test is not “higher speed equals higher EMF.”

Instead, what we observed was this:

The stationary Model 3 produced a very low magnetic-field reading at our measurement position, while readings during driving were substantially higher and fluctuated as the vehicle’s operating conditions changed.

That distinction is important, especially when interpreting real-world EMF measurements rather than relying on a single number.

Final Driving Test: About 10 MPH, Meter Held in the Center of the Cabin

For our final measurement, we slowed the Tesla Model 3 to approximately 10 mph.

This time, we held the meter in our hands near the middle of the cabin without touching the vehicle’s interior surfaces, similar to our stationary cabin test.

The meter recorded:

• Electric field: 0 V/m
• Magnetic field: approximately 0.7 mG

That was considerably lower than the readings we captured during some of our faster driving measurements.

Our Tesla Model 3 EMF Results

Here is what we documented during the complete test:

Test Condition	Electric Field	Magnetic Field
Plugged in and charging, center console	~4,448 V/m	Not documented
Unplugged, center console	~9 V/m	Not documented
Stationary, meter held in center cabin	0 V/m	~0.2 mG
Driving ~10 mph, meter held in center cabin	0 V/m	~0.7 mG
Driving ~15 mph	0 V/m	~7.0 mG
Driving ~30 mph	0 V/m	~13.1 mG
Driving ~60 mph	0 V/m	~12.7 mG

 

Our final 10 mph reading reinforces an important lesson from the experiment: there wasn’t one single “Tesla EMF level.”

The measurements changed substantially depending on whether the Model 3 was charging, stationary, or moving. They also depended on where and how we positioned the meter, which means these numbers should not be treated as a controlled speed-versus-EMF experiment.

What we can document from this test is that the highest electric-field reading we photographed occurred while the Model 3 was plugged in and charging, while our magnetic-field measurements changed considerably under different driving conditions.

Yes. And this is one of the most important sections of the article, because we shouldn’t just dump numbers like 13.1 mG and 4,448 V/m on readers and let them decide whether those numbers are “high” or “dangerous.”

There’s also an important technical limitation we need to state: exposure limits are frequency-dependent, and our handheld meter photos show field magnitude but don’t establish the frequency spectrum of each measured field. So we cannot scientifically take every reading and compare it directly against one universal “safe limit.” ICNIRP explicitly defines different reference levels depending on frequency. 

What Do Our Tesla Model 3 EMF Measurements Actually Mean?

Seeing a reading like 13.1 mG or 4,448 V/m can sound dramatic without context. But an EMF measurement cannot be interpreted from the number alone.

The type of field, frequency, duration of exposure, measurement location, and testing method all matter.

Our Tesla Model 3 test measured two different things:

Electric fields, reported in volts per meter (V/m), and magnetic fields, reported in milligauss (mG).

These are related to electricity, but they are not interchangeable measurements. ICNIRP similarly treats low-frequency electric and magnetic fields separately when establishing exposure guidance. 

How Our Magnetic-Field Readings Compare With Exposure Guidelines

The highest magnetic-field value we photographed during our driving tests was approximately 13.1 mG.

For perspective:

13.1 mG = 1.31 microtesla (µT).

International exposure guidelines for low-frequency magnetic fields are substantially higher than that, although the exact reference level depends on the frequency of the field. For example, ICNIRP’s general-public reference level is 200 µT (2,000 mG) for time-varying magnetic fields from 50 Hz through 400 Hz. These limits are designed to protect against established acute effects such as nerve stimulation. 

That does not mean we can declare our 13.1 mG measurement “safe” simply because it is below 2,000 mG.

We did not perform frequency-spectrum analysis, and an electric vehicle can generate fields containing multiple frequencies and changing waveforms. Our handheld test therefore isn’t equivalent to the type of controlled assessment used to determine regulatory compliance.

It does give useful perspective: the magnetic-field values we recorded while driving were far below the applicable ICNIRP reference level if the measured field were within that 50 to 400 Hz range.

What About the 4,448 V/m Reading While Charging?

This measurement needs even more careful interpretation.

While the Model 3 was plugged in, our meter recorded approximately 4,448 V/m near the center console. After disconnecting the charging cable, we recorded approximately 9 V/m in essentially the same location.

ICNIRP’s general-public electric-field reference level is 5,000 V/m at 50 Hz and approximately 4,167 V/m at 60 Hz. However, those values cannot simply be applied to our photograph because we did not measure the frequency composition of the field, characterize the waveform, or perform the measurement using a laboratory compliance protocol. 

There’s another important detail: low-frequency electric-field measurements are highly sensitive to grounding, the person’s position, surrounding conductive objects, and the measurement environment. ICNIRP notes that grounding can substantially affect how external electric fields interact with the body. 

So our charging measurement is interesting, especially because it dropped dramatically after unplugging the vehicle, but we should not characterize 4,448 V/m as exceeding or approaching a safety limit without knowing the field’s frequency and conducting a proper compliance measurement.

That’s precisely where many online EMF tests go wrong.

What Our Test Does Show

Our experiment produced several useful real-world observations.

The Model 3 did not have one constant “EMF level.” The readings changed depending on whether the vehicle was charging, stationary, or moving.

The strongest electric-field measurement we photographed occurred while the vehicle was plugged in and charging.

The magnetic field in the center cabin was very low while the unplugged vehicle was stationary, at approximately 0.2 mG, but we documented higher magnetic-field readings while driving, including approximately 7.0 mG at 15 mph, 13.1 mG around 30 mph, and 12.7 mG around 60 mph.

We also learned something equally important: speed alone did not predict the reading. Our 60 mph measurement was slightly lower than our 30 mph measurement.

That suggests vehicle operating conditions and measurement position matter considerably.

What Our Test Does NOT Prove

This experiment does not prove that Tesla vehicles are dangerous.

It also does not prove that Tesla vehicles are completely free of any potential EMF concerns.

We tested one Tesla Model 3 with one consumer EMF meter under a limited number of real-world conditions. We did not conduct spectral analysis, measure every location simultaneously, control acceleration and regenerative braking, compare multiple Model 3 model years, or conduct the test in an electromagnetic laboratory.

Most importantly, our meter measurements should not be treated as measurements of a person’s absorbed dose.

International guidelines are considerably more sophisticated than simply labeling a particular milligauss reading “good” or “bad.” They consider frequency and the interaction between external fields and the human body. 

The Most Interesting Finding From Our Test

Our biggest takeaway wasn’t that a Tesla Model 3 produces EMFs. Any vehicle containing electrical systems will produce electromagnetic fields.

What surprised us was how much the measurements changed depending on what the vehicle was doing and where we measured them.

We went from approximately:

0.2 mG stationary → 7.0 mG at ~15 mph → 13.1 mG at ~30 mph → 12.7 mG at ~60 mph → 0.7 mG during our final ~10 mph center-cabin measurement.

And during charging, we observed an entirely different phenomenon: an electric-field reading of approximately 4,448 V/m near the center console that fell to approximately 9 V/m after the charging cable was disconnected.

Those measurements raise worthwhile questions, but they don’t answer every question.

Our goal with this test isn’t to scare Tesla owners or tell them what conclusion to reach. It’s to publish the measurements we actually observed, show exactly where we took them, and give readers enough context to interpret the results responsibly.

Want to Reduce Your Everyday EMF Exposure?

Our Tesla Model 3 test showed that electromagnetic field levels can change considerably depending on where you are in the vehicle and what the vehicle is doing.

If reducing your everyday exposure to electromagnetic fields is something you’re interested in, Safe Connect Plus offers a range of EMF protection products designed for the environments and devices we interact with every day.

From personal-use products to solutions designed for the home, you can explore the different options and decide what makes sense for your lifestyle.

[Explore EMF Protection Products →]

At Safe Connect Plus, we believe EMF awareness should start with measurement, education, and informed decisions, not fear.