245/60R18 · SUV / crossover · kPa
245/60R18 kPa inflation table
- Size
- 245/60R18
- Class
- SUV / crossover
- Planning PSI
- 36
- Planning bar
- 2.48
kPa
248
2.48 bar · 36 psi · 100 kPa = 1 bar
245/60R18 · 36 psi · 2.48 bar · 248 kPa — estimates. Placard wins.
If the gauge only speaks kPa, 248 kPa is the sketch for this SUV / crossover size. Fine-tune to the vehicle that actually wears 245/60R18. Under-inflation cooks the shoulders of a 245/60R18; over-inflation wears the centre rib and bangs every cat’s eye.
kPa, bar and PSI
Use the table, then set a cold gauge. 248 kPa is 100 × 2.48 bar on this size.
| kPa | Bar | PSI |
|---|---|---|
| 221 | 2.21 | 32 |
| 228 | 2.28 | 33 |
| 234 | 2.34 | 34 |
| 241 | 2.41 | 35 |
| 248 | 2.48 | 36 |
| 255 | 2.55 | 37 |
| 262 | 2.62 | 38 |
| 269 | 2.69 | 39 |
| 276 | 2.76 | 40 |
| 283 | 2.83 | 41 |
| 290 | 2.90 | 42 |
| 296 | 2.96 | 43 |
| 303 | 3.03 | 44 |
| 310 | 3.10 | 45 |
| 317 | 3.17 | 46 |
| 324 | 3.24 | 47 |
| 331 | 3.31 | 48 |
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 | 37 psi / 2.55 bar / 255 kPa |
| Typical occupancy | 37 psi / 2.55 bar / 255 kPa | 39 psi / 2.69 bar / 269 kPa |
| Motorway + luggage (sketch) | 38 psi / 2.62 bar / 262 kPa | 40 psi / 2.76 bar / 276 kPa |
What 245/60R18 means
245/60R18 means a 245 millimetre section width, a sidewall that is 60 percent of that width, on a 18-inch rim. The R is radial construction.
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.
Placard versus sidewall
This website maps size searches such as “245/60R18 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 245/60R18.
| 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 |
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.
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.
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
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.
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.
Is 245/60R18 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