UK · EU reference Tyre Pressure

235/35R19 · passenger car · Bar

235/35R19 tyre pressure in bar

Size
235/35R19
Class
passenger car
Planning PSI
37
Planning bar
2.55

bar

2.55

37 psi · 255 kPa · not a second factory sticker

235/35R19 · 37 psi · 2.55 bar · 255 kPa — estimates. Placard wins.

European stickers print bar. 235/35R19 often sits near 2.55 bar on a passenger car (37 psi / 255 kPa). 2.55 bar is not “37 divided by ten”. Front 19-inch sport / EV. These rows are estimates interpolated for the size, not OEM for a named VIN. Low-profile {sz} does not want a “softer” pressure to recover ride. Stay at or slightly above the car’s original placard if load index is kept.

Bar, PSI and kPa

1 bar ≈ 14.5 psi; 1 psi ≈ 6.89 kPa. Planning midpoint for 235/35R19: 37 psi = 2.55 bar = 255 kPa.

BarPSIkPa
2.2833228
2.3434234
2.4135241
2.4836248
2.5537255
2.6238262
2.6939269
2.7640276
2.8341283
2.9042290
2.9643296
3.0344303
3.1045310
3.1746317
3.2447324
3.3148331
3.3849338

Estimated 235/35R19 pressure by load

Load moves the rear first on a passenger car. If the factory placard already has a laden column, use that — not this sketch for 235/35R19.

ConditionFront (est.)Rear (est.)
Driver only / unladen37 psi / 2.55 bar / 255 kPa37 psi / 2.55 bar / 255 kPa
Typical occupancy38 psi / 2.62 bar / 262 kPa39 psi / 2.69 bar / 269 kPa
Motorway + luggage (sketch)39 psi / 2.69 bar / 269 kPa40 psi / 2.76 bar / 276 kPa

Placard versus sidewall

This website maps size searches such as “235/35R19 psi”. It does not replace the VIN label. If the two disagree, the label wins.

What 235/35R19 means

235/35R19 means a 235 millimetre section width, a sidewall that is 35 percent of that width, on a 19-inch rim. The R is radial construction.

Front 19-inch sport / EV. Rim diameter 19 in; section 235 mm. Estimates on this page assume a typical load index for the passenger car class.

Cars often seen on 235/35R19

These catalogue models are often seen on 235/35R19 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.

How to set 235/35R19

  1. Park so the 235/35R19 tyres are cold (three hours, or less than about a mile).
  2. Read the door-pillar placard for that car — not the 235/35R19 sidewall maximum.
  3. If the sticker is missing, 37 psi / 2.55 bar is only a passenger car planning figure for this size.
  4. Set all four with a calibrated gauge. A 3 psi miss on one corner shows up as a wander.
  5. Refit valve caps and reset TPMS if the handbook asks for a relearn.

Temperature drift

Roughly 1 psi per 5–6 °C. The table uses 37 psi as a 20 °C baseline for 235/35R19.

AmbientGaugeBarkPaNote
−5 °C (hard frost)34 psi2.34 bar234 kPaGauge reads low; do not overfill once warm
0 °C35 psi2.41 bar241 kPaGauge reads low; do not overfill once warm
8 °C (UK winter morning)36 psi2.48 bar248 kPaGauge reads low; do not overfill once warm
20 °C (set cold here)37 psi2.55 bar255 kPaBaseline for this size sketch
30 °C39 psi2.69 bar269 kPaDo not bleed a hot 235/35R19
38 °C (heatwave tarmac)40 psi2.76 bar276 kPaDo not bleed a hot 235/35R19

Keep 235/35R19 on the printed band for that car; 37 psi is a size sketch, not a second VIN label.

Questions about 235/35R19

Should I bleed pressure after a motorway run?

No. Heat raises the gauge. Set cold only. Bleeding a hot tyre leaves it low the next morning.

Is 235/35R19 the same as a plus-size swap?

Only if that is the size you fitted. Overall diameter should stay close to OEM. Pressure still follows the car, with load index at or above original.

When does TPMS warn on 235/35R19?

Direct TPMS typically flags about 25% below target — near 28 psi if you were aiming at 37. Fill to the sticker, not to the lamp.

Can I run 235/35R19 at a lower pressure for comfort?

Not as a habit. A soft 235/35R19 cooks the shoulders and dulls steering. Keep load index and stay on the placard.

What PSI should 235/35R19 tyres be?

A passenger car planning figure is about 37 psi cold (2.55 bar / 255 kPa). Confirm on the vehicle placard — two cars can share 235/35R19 and not share a sticker.

Handbook: placard · bar vs PSI · cold inflation · all sizes