What is the recommended tire pressure for a 2022 Lexus NX?

The 2022 Lexus NX uses 35 PSI cold on the front axle and 33 PSI cold on the rear axle. These are the OEM specifications. Always measure tire pressure when the tires are cold — before driving or after sitting for at least 3 hours.

What tire size does the 2022 Lexus NX use?

The standard (base trim) tire size for the 2022 Lexus NX is 225/55R18. Higher trim levels and optional packages may use a different size — check the sticker inside your driver's door for the exact specification for your vehicle.

How do I convert the 2022 Lexus NX tire pressure to bar?

35 PSI = 2.4 bar (front) and 33 PSI = 2.3 bar (rear). In kPa: 241 kPa front and 228 kPa rear. Multiply PSI × 0.0689 to convert to bar.

Why are the front and rear tire pressures different on the 2022 Lexus NX?

The 2022 Lexus NX uses 35 PSI front and 33 PSI rear because the two axles carry different loads. The front axle carries roughly 57% of the vehicle's 1750 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.

What happens if the 2022 Lexus NX tires are underinflated?

Running 5+ PSI low on the Lexus NX causes uneven shoulder wear, increased rolling resistance (worse fuel economy), higher tire operating temperature, and reduced wet braking performance. In extreme cases, chronic underinflation can cause sidewall failure. Check pressure monthly and always after a large temperature swing.

What do the numbers in 225/55R18 mean on the 2022 Lexus NX?

On the 2022 Lexus NX, 225/55R18 breaks down as: 225 = section width in millimetres (8.86"), 55 = aspect ratio (the sidewall is 55% of the width, so 123.8 mm / 4.87" tall), R = radial construction, and 18 = the wheel diameter in inches.

What is the overall diameter of the 2022 Lexus NX tires?

The 225/55R18 tire on the 2022 Lexus NX has an overall diameter of about 27.74" (705 mm) and a rolling circumference of roughly 87.16", giving about 727 revolutions per mile. Fitting a tire with a different diameter will throw off your speedometer and odometer.

2022 Lexus NX Tire Pressure

OEM cold pressure spec — verified for the 2022–2024 generation.

Recommended cold pressure

Front

35PSI

241 kPa

Rear

33PSI

228 kPa

Tire size

225/55R18

Curb weight

1,750 kg

Front axle

57%

2022 Lexus NX tire size: 225/55R18

The factory (base-trim) tire size for the 2022 Lexus NX is 225/55R18. Here is what that size measures out to in the real world — useful when comparing replacement tires or checking whether a different size will fit.

Section width

225 mm

8.86"

Aspect ratio

55%

123.8 mm sidewall

Wheel diameter

18"

rim

Overall diameter: 27.74"; 705 mm
Sidewall height: 4.87"; 123.8 mm
Circumference: 87.16"; rolling
Revs / mile: 727; approx.

Staying within ±3% of the 27.74" overall diameter keeps your speedometer accurate. A larger diameter reads slower than your true speed; a smaller one reads faster.

Custom adjustment

Tune for your load & driving style

Pre-filled with Lexus NX specs. Adjust weight or style below.

Recommended COLD pressure

28 / 22 PSI

Front (cold): 28 PSI(1.93 bar)
Rear (cold): 22 PSI(1.52 bar)
Front (hot est.): 30.8 PSI
Rear (hot est.): 24.2 PSI

Street setting: balanced for comfort, wear, and fuel economy. Always measure cold.

Save on coverage

Compare insurance quotes for your 2022 Lexus NX

See rates from multiple insurers side by side for the 2022 Lexus NX. Most drivers who compare switch and save.

Compare insurance quotes

Calchy may be compensated when you get a quote through these partners. This is advertising, not financial advice.

Shop parts for this vehicle

Common maintenance parts that fit the 2022 Lexus NX. Links open an Amazon search.

As an Amazon Associate, Calchy may earn from qualifying purchases.

Other Lexus NX years

2024 2023 All years →

FAQ

2022 Lexus NX

What is the recommended tire pressure for a 2022 Lexus NX?: The 2022 Lexus NX uses 35 PSI cold on the front axle and 33 PSI cold on the rear axle. These are the OEM specifications. Always measure tire pressure when the tires are cold — before driving or after sitting for at least 3 hours.
What tire size does the 2022 Lexus NX use?: The standard (base trim) tire size for the 2022 Lexus NX is 225/55R18. Higher trim levels and optional packages may use a different size — check the sticker inside your driver's door for the exact specification for your vehicle.
How do I convert the 2022 Lexus NX tire pressure to bar?: 35 PSI = 2.4 bar (front) and 33 PSI = 2.3 bar (rear). In kPa: 241 kPa front and 228 kPa rear. Multiply PSI × 0.0689 to convert to bar.
Why are the front and rear tire pressures different on the 2022 Lexus NX?: The 2022 Lexus NX uses 35 PSI front and 33 PSI rear because the two axles carry different loads. The front axle carries roughly 57% of the vehicle's 1750 kg curb weight, requiring a slightly different pressure to maintain the correct contact patch at each corner.
What happens if the 2022 Lexus NX tires are underinflated?: Running 5+ PSI low on the Lexus NX causes uneven shoulder wear, increased rolling resistance (worse fuel economy), higher tire operating temperature, and reduced wet braking performance. In extreme cases, chronic underinflation can cause sidewall failure. Check pressure monthly and always after a large temperature swing.
What do the numbers in 225/55R18 mean on the 2022 Lexus NX?: On the 2022 Lexus NX, 225/55R18 breaks down as: 225 = section width in millimetres (8.86"), 55 = aspect ratio (the sidewall is 55% of the width, so 123.8 mm / 4.87" tall), R = radial construction, and 18 = the wheel diameter in inches.
What is the overall diameter of the 2022 Lexus NX tires?: The 225/55R18 tire on the 2022 Lexus NX has an overall diameter of about 27.74" (705 mm) and a rolling circumference of roughly 87.16", giving about 727 revolutions per mile. Fitting a tire with a different diameter will throw off your speedometer and odometer.