UK · EU reference Tyre Pressure

255/50R19 · SUV / crossover · Bar

255/50R19 bar chart (2.48 bar planning figure)

Size
255/50R19
Class
SUV / crossover
Planning PSI
36
Planning bar
2.48

bar

2.48

36 psi · 248 kPa · not a second factory sticker

255/50R19 · 36 psi · 2.48 bar · 248 kPa — estimates. Placard wins.

A 255/50R19 C-type or LT carcass can live far above a hatchback bar figure. This page’s 2.48 bar sketch is for the SUV / crossover class, not every car that can physically mount the tyre. Under-inflation cooks the shoulders of a 255/50R19; over-inflation wears the centre rib and bangs every cat’s eye.

Bar, PSI and kPa

Convert around the 255/50R19 band. 2.48 bar is about 36 psi — not 23, not 33 unless the maths says so.

BarPSIkPa
2.2132221
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

Estimated 255/50R19 pressure by load

Plus-sizing to 255/50R19 from a taller OEM tyre usually keeps the same placard if the load index is equal or higher.

ConditionFront (est.)Rear (est.)
Driver only / unladen36 psi / 2.48 bar / 248 kPa38 psi / 2.62 bar / 262 kPa
Typical occupancy36 psi / 2.48 bar / 248 kPa39 psi / 2.69 bar / 269 kPa
Motorway + luggage (sketch)37 psi / 2.55 bar / 255 kPa40 psi / 2.76 bar / 276 kPa

Placard versus sidewall

This website maps size searches such as “255/50R19 psi”. It does not replace the VIN label. If the two disagree, the label wins.

What 255/50R19 means

255/50R19 means a 255 millimetre section width, a sidewall that is 50 percent of that width, on a 19-inch rim. The R is radial construction.

19-inch Euro SUV. Rim diameter 19 in; section 255 mm. Estimates on this page assume a typical load index for the SUV / crossover class.

Cars often seen on 255/50R19

These catalogue models are often seen on 255/50R19 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.

Land Rover DiscoveryToyota RAV4

How to set 255/50R19

  1. Park so the 255/50R19 tyres are cold (three hours, or less than about a mile).
  2. Read the door-pillar placard for that car — not the 255/50R19 sidewall maximum.
  3. If the sticker is missing, 36 psi / 2.48 bar is only a SUV / crossover 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 36 psi as a 20 °C baseline for 255/50R19.

AmbientGaugeBarkPaNote
−5 °C (hard frost)33 psi2.28 bar228 kPaGauge reads low; do not overfill once warm
0 °C34 psi2.34 bar234 kPaGauge reads low; do not overfill once warm
8 °C (UK winter morning)35 psi2.41 bar241 kPaGauge reads low; do not overfill once warm
20 °C (set cold here)36 psi2.48 bar248 kPaBaseline for this size sketch
30 °C38 psi2.62 bar262 kPaDo not bleed a hot 255/50R19
38 °C (heatwave tarmac)39 psi2.69 bar269 kPaDo not bleed a hot 255/50R19

If the door sticker and this 255/50R19 page disagree, the sticker wins.

Questions about 255/50R19

Is the sidewall number correct for 255/50R19?

No. Sidewall PSI or kPa is a maximum for the carcass. Operating pressure is the door-pillar placard.

What is 255/50R19 in kPa?

248 kPa is the planning midpoint (100 kPa = 1 bar). 255 kPa is one PSI higher.

Is 255/50R19 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.

What PSI should 255/50R19 tyres be?

A SUV / crossover planning figure is about 36 psi cold (2.48 bar / 248 kPa). Confirm on the vehicle placard — two cars can share 255/50R19 and not share a sticker.

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.

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