UK · EU reference Tyre Pressure

225/65R17 · SUV / crossover · PSI

225/65R17 PSI chart (34 psi planning figure)

Size
225/65R17
Class
SUV / crossover
Planning PSI
34
Planning bar
2.34

psi

34

2.34 bar · 234 kPa · SUV / crossover planning figure

225/65R17 · 34 psi · 2.34 bar · 234 kPa — estimates. Placard wins.

If someone typed “225/65R17 psi”, they want Imperial. Start near 34 psi on an unladen SUV / crossover, then confirm the vehicle placard. Sidewall max is not the target. A 10 °C overnight drop takes roughly 1 psi (0.07 bar) off a closed 225/65R17.

Estimated 225/65R17 pressure by load

Plus-sizing to 225/65R17 from a taller OEM tyre usually keeps the same placard if the load index is equal or higher.

ConditionFront (est.)Rear (est.)
Driver only / unladen34 psi / 2.34 bar / 234 kPa34 psi / 2.34 bar / 234 kPa
Typical occupancy34 psi / 2.34 bar / 234 kPa35 psi / 2.41 bar / 241 kPa
Motorway + luggage (sketch)35 psi / 2.41 bar / 241 kPa36 psi / 2.48 bar / 248 kPa

PSI, bar and kPa

Convert around the 225/65R17 band. 2.34 bar is about 34 psi — not 23, not 33 unless the maths says so.

PSIBarkPa
302.07207
312.14214
322.21221
332.28228
342.34234
352.41241
362.48248
372.55255
382.62262
392.69269
402.76276
412.83283
422.90290
432.96296
443.03303
453.10310
463.17317

What 225/65R17 means

Read 225/65R17 as width / aspect R rim. Nothing in the size string is a pressure. Pressure lives on the car, not moulded as 205 or 55.

The default compact-SUV 17-inch. Rim diameter 17 in; section 225 mm. Estimates on this page assume a typical load index for the SUV / crossover class.

Placard versus sidewall

If a forum says “all 225/65R17 run 34 psi”, ignore it. A Qashqai and a Golf can share a size and not share a sticker.

Cars often seen on 225/65R17

These catalogue models are often seen on 225/65R17 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.

Nissan QashqaiFord KugaHyundai TucsonKia SportageToyota RAV4Mazda CX-5

How to set 225/65R17

  1. Park so the 225/65R17 tyres are cold (three hours, or less than about a mile).
  2. Read the door-pillar placard for that car — not the 225/65R17 sidewall maximum.
  3. If the sticker is missing, 34 psi / 2.34 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 34 psi as a 20 °C baseline for 225/65R17.

AmbientGaugeBarkPaNote
−5 °C (hard frost)31 psi2.14 bar214 kPaGauge reads low; do not overfill once warm
0 °C32 psi2.21 bar221 kPaGauge reads low; do not overfill once warm
8 °C (UK winter morning)33 psi2.28 bar228 kPaGauge reads low; do not overfill once warm
20 °C (set cold here)34 psi2.34 bar234 kPaBaseline for this size sketch
30 °C36 psi2.48 bar248 kPaDo not bleed a hot 225/65R17
38 °C (heatwave tarmac)37 psi2.55 bar255 kPaDo not bleed a hot 225/65R17

A cheap gauge and a monthly habit will do more for a set of 225/65R17 than nitrogen upsells.

Questions about 225/65R17

When does TPMS warn on 225/65R17?

Direct TPMS typically flags about 25% below target — near 26 psi if you were aiming at 34. 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.

What is 225/65R17 in kPa?

234 kPa is the planning midpoint (100 kPa = 1 bar). 241 kPa is one PSI higher.

What PSI should 225/65R17 tyres be?

A SUV / crossover planning figure is about 34 psi cold (2.34 bar / 234 kPa). Confirm on the vehicle placard — two cars can share 225/65R17 and not share a sticker.

Is 225/65R17 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