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2018 Toyota Prius c Tire Size

The 2018 Toyota Prius c came with 175/65R15 or 195/50R16 tires, depending on the trim and wheel size. Recommended cold pressure: 38 psi front, 33 psi rear.

Not sure which one you have? Read the size off your tire's sidewall, or check the label on the driver's door jamb. How to read a tire size.

✓ From the manual ·2018 Toyota Prius c owner's manual, p. 547

Factory tire sizes

P175/65R15Front and rear
Width
175 mm (6.9 in)
Wheel
15 in · 15 x 5J
Overall diameter
24 in
Cold pressure
38 psi front, 33 psi rear
P195/50R16Front and rear
Width
195 mm (7.7 in)
Wheel
16 in · 16 x 6J
Overall diameter
23.7 in

Spare tire

T125/70D16Spare (temporary)
Width
125 mm (4.9 in)
Wheel
16 in · 16 x 4T
Overall diameter
22.9 in
Cold pressure
60 psi

A temporary spare is for short trips at reduced speed, usually no faster than 50 mph. Follow the limit printed on the spare and in your manual, and replace the flat as soon as you can.

Questions

What size tires does a 2018 Toyota Prius c have?

The 2018 Toyota Prius c came with 175/65R15 or 195/50R16 tires, depending on the trim and wheel size.

Which size is on my 2018 Toyota Prius c?

Look at the sidewall of one of your tires: the size is the code that looks like 175/65R15. The label on the driver's door jamb also lists the original size and pressure for your exact trim.

What tire pressure does a 2018 Toyota Prius c need?

The manual gives 38 psi front, 33 psi rear, measured with the tires cold. Check it before driving, and go by the door-jamb label if it differs, because that is set for your exact car.

Can I fit a different tire size on my 2018 Toyota Prius c?

Stick to a factory size for your wheel unless a tire shop confirms the swap. A different overall diameter changes speedometer readings and can upset ABS and stability control, and the load index must be at least the original.

Other Toyota Prius c years

All Toyota Prius c tire sizes by year