UK · EU reference Tyre Pressure

245/55R19 · SUV / crossover · kPa

245/55R19 kPa inflation table

Size
245/55R19
Class
SUV / crossover
Planning PSI
36
Planning bar
2.48

kPa

248

2.48 bar · 36 psi · 100 kPa = 1 bar

245/55R19 · 36 psi · 2.48 bar · 248 kPa — estimates. Placard wins.

Kilopascals show up on some Asian stickers and ISO sheets. 248 kPa is the planning midpoint for 245/55R19 (2.48 bar / 36 psi). 100 kPa = 1 bar. Low-profile 19-inch SUV. These rows are estimates interpolated for the size, not OEM for a named VIN.

kPa, bar and PSI

1 bar ≈ 14.5 psi; 1 psi ≈ 6.89 kPa. Planning midpoint for 245/55R19: 36 psi = 2.48 bar = 248 kPa.

kPaBarPSI
2212.2132
2282.2833
2342.3434
2412.4135
2482.4836
2552.5537
2622.6238
2692.6939
2762.7640
2832.8341
2902.9042
2962.9643
3033.0344
3103.1045
3173.1746
3243.2447
3313.3148

Estimated 245/55R19 pressure by load

These 245/55R19 load steps are ± a few PSI from 36. They are not a licence to ignore a printed second column on a van or estate.

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

What 245/55R19 means

Read 245/55R19 as width / aspect R rim. Nothing in the size string is a pressure. Pressure lives on the car, not moulded as 205 or 55.

Low-profile 19-inch SUV. Rim diameter 19 in; section 245 mm. Estimates on this page assume a typical load index for the SUV / crossover class.

Placard versus sidewall

This website maps size searches such as “245/55R19 psi”. It does not replace the VIN label. If the two disagree, the label wins.

Temperature drift

Roughly 1 psi per 5–6 °C. The table uses 36 psi as a 20 °C baseline for 245/55R19.

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 245/55R19
38 °C (heatwave tarmac)39 psi2.69 bar269 kPaDo not bleed a hot 245/55R19

How to set 245/55R19

  1. Measure before the school run, not after the motorway.
  2. Write LF / RF / RR / RL. Do not keep 245/55R19 numbers in your head.
  3. Add air in short bursts toward the placard, using 36 psi only as a map.
  4. If one 245/55R19 is 4 psi down, hunt for a nail before you blame the weather.
  5. Log date, ambient temperature and the four readings.

Cars often seen on 245/55R19

These catalogue models are often seen on 245/55R19 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.

Mazda CX-5Hyundai TucsonLand Rover Discovery

Keep 245/55R19 on the printed band for that car; 36 psi is a size sketch, not a second VIN label.

Questions about 245/55R19

When does TPMS warn on 245/55R19?

Direct TPMS typically flags about 25% below target — near 27 psi if you were aiming at 36. Fill to the sticker, not to the lamp.

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.

Can I run 245/55R19 at a lower pressure for comfort?

Not as a habit. A soft 245/55R19 cooks the shoulders and dulls steering. Keep load index and stay on the placard.

What is 245/55R19 in bar?

36 psi is 2.48 bar. Add a tenth of a bar if the placard’s laden column is higher, which is common on vans that wear this size.

Is 245/55R19 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.

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