To change units to mph in a Toyota Supra, open the settings menu, find the units option for speed and distance, and select miles and mph. Some cars set this in the instrument cluster and others in the infotainment system, so check the owner’s manual for your model year. Change the setting while parked.
Understanding Speedometer Units in Toyota Supra

The speedometer can show km/h or mph depending on the market and the settings. The main speed reading follows the unit you choose.
Reasons for Switching to MPH: Why It Matters for Drivers
Speed limit signs in some countries are in mph, so you want the speedometer to match them.
Legal Compliance Requirements
Rules differ by country. Make sure you can read the speed in the unit used on local signs.
Enhanced Driving Accuracy
Reading the speed in the unit used on signs makes it easier to keep to limits.
Improved Navigation Experience
Navigation distances will match the signs when the units are set to miles.
How to Change Units to MPH in a Toyota Supra: Step by Step
- Park the car and turn it on.
- Open the settings menu on the screen or the cluster.
- Look for units or display settings.
- Select miles and mph for distance and speed.
- Confirm the change.
Selecting the Right Speedometer Units for Your Vehicle

Pick the unit that matches the signs where you drive.
Importance of Accurate Readings
The speedometer should match the units you use on the road.
Legal Requirements by Region
Check the rules for your country if you import or travel with the car.
User Preferences and Adaptations
It takes a short time to get used to a different unit.
Confirming Your Changes to MPH
Check both the instrument cluster and the screen, because they may be set separately.
Troubleshooting Common Issues With Speedometer Units
- Check both the cluster and the infotainment settings.
- Restart the car and check again.
- Check the manual for your model.
- Ask a dealer if the setting will not save.
Why Accurate Speed Readings Are Crucial for Safe Driving

Accurate speed readings help you keep to limits and drive safely.
Other Options for Speedometer Units
Some cars can show a second digital speed in another unit. Check what your model offers.
Related reading:
- How to Change Units to Fahrenheit in a Toyota Supra
- When to Change Differential Fluid in a Toyota Supra
- Altitude and Toyota Supra Turbo Performance: What Changes
Frequently Asked Questions
How Do I Change My Dashboard From Km/H to Mph?
Open the settings, find the units option and select miles and mph.
How Do I Switch From Km to Miles?
Use the same units option and select miles for distance.
How to Change Unit in Toyota Navigation?
Look for the distance units in the navigation or system settings.
How to Change Speedometer on Toyota?
You change the units, not the speedometer itself. Use the units option in the settings, and ask a dealer if you want the gauge changed.
Conclusion
Use the units option, check both displays and read the manual for your model.
