245/60R18 · SUV / crossover · Overview
245/60R18 tyre pressure
- Size
- 245/60R18
- Class
- SUV / crossover
- Planning PSI
- 36
- Planning bar
- 2.48
245/60R18
36 psi / 2.48 bar
248 kPa · estimates for this size class
245/60R18 · 36 psi · 2.48 bar · 248 kPa — estimates. Placard wins.
Searches for “245/60R18 pressure” usually want a number. Use 36 psi (2.48 bar) only as a sketch; the door-pillar placard on the car that wears this size still wins. A 10 °C overnight drop takes roughly 1 psi (0.07 bar) off a closed 245/60R18.
What 245/60R18 means
A 245/60R18 on a SUV / crossover is a geometry. Two cars can share the size and disagree on PSI because mass and axle split differ.
Heavier CUV 18-inch. Rim diameter 18 in; section 245 mm. Estimates on this page assume a typical load index for the SUV / crossover class.
Estimated 245/60R18 pressure by load
Load moves the rear first on a SUV / crossover. If the factory placard already has a laden column, use that — not this sketch for 245/60R18.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only / unladen | 36 psi / 2.48 bar / 248 kPa | 36 psi / 2.48 bar / 248 kPa |
| Typical occupancy | 36 psi / 2.48 bar / 248 kPa | 37 psi / 2.55 bar / 255 kPa |
| Motorway + luggage (sketch) | 37 psi / 2.55 bar / 255 kPa | 38 psi / 2.62 bar / 262 kPa |
PSI, bar and kPa
Convert around the 245/60R18 band. 2.48 bar is about 36 psi — not 23, not 33 unless the maths says so.
| PSI | Bar | kPa |
|---|---|---|
| 32 | 2.21 | 221 |
| 33 | 2.28 | 228 |
| 34 | 2.34 | 234 |
| 35 | 2.41 | 241 |
| 36 | 2.48 | 248 |
| 37 | 2.55 | 255 |
| 38 | 2.62 | 262 |
| 39 | 2.69 | 269 |
| 40 | 2.76 | 276 |
| 41 | 2.83 | 283 |
| 42 | 2.90 | 290 |
| 43 | 2.96 | 296 |
| 44 | 3.03 | 303 |
| 45 | 3.10 | 310 |
| 46 | 3.17 | 317 |
| 47 | 3.24 | 324 |
| 48 | 3.31 | 331 |
Placard versus sidewall
The sidewall of a 245/60R18 may say 51 psi or 350 kPa. That is a carcass maximum. Operating pressure is the tyre-information placard on the driver’s door pillar.
Cars often seen on 245/60R18
These catalogue models are often seen on 245/60R18 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.
How to set 245/60R18
- Park so the 245/60R18 tyres are cold (three hours, or less than about a mile).
- Read the door-pillar placard for that car — not the 245/60R18 sidewall maximum.
- If the sticker is missing, 36 psi / 2.48 bar is only a SUV / crossover planning figure for this size.
- Set all four with a calibrated gauge. A 3 psi miss on one corner shows up as a wander.
- 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 245/60R18.
| Ambient | Gauge | Bar | kPa | Note |
|---|---|---|---|---|
| −5 °C (hard frost) | 33 psi | 2.28 bar | 228 kPa | Gauge reads low; do not overfill once warm |
| 0 °C | 34 psi | 2.34 bar | 234 kPa | Gauge reads low; do not overfill once warm |
| 8 °C (UK winter morning) | 35 psi | 2.41 bar | 241 kPa | Gauge reads low; do not overfill once warm |
| 20 °C (set cold here) | 36 psi | 2.48 bar | 248 kPa | Baseline for this size sketch |
| 30 °C | 38 psi | 2.62 bar | 262 kPa | Do not bleed a hot 245/60R18 |
| 38 °C (heatwave tarmac) | 39 psi | 2.69 bar | 269 kPa | Do not bleed a hot 245/60R18 |
Keep 245/60R18 on the printed band for that car; 36 psi is a size sketch, not a second VIN label.
Questions about 245/60R18
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 245/60R18 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.
What is 245/60R18 in kPa?
248 kPa is the planning midpoint (100 kPa = 1 bar). 255 kPa is one PSI higher.
Is the sidewall number correct for 245/60R18?
No. Sidewall PSI or kPa is a maximum for the carcass. Operating pressure is the door-pillar placard.
What PSI should 245/60R18 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 245/60R18 and not share a sticker.
Handbook: placard · bar vs PSI · cold inflation · all sizes