245/65R17 · SUV / crossover · PSI
245/65R17 PSI chart (35 psi planning figure)
- Size
- 245/65R17
- Class
- SUV / crossover
- Planning PSI
- 35
- Planning bar
- 2.41
psi
35
2.41 bar · 241 kPa · SUV / crossover planning figure
245/65R17 · 35 psi · 2.41 bar · 241 kPa — estimates. Placard wins.
If someone typed “245/65R17 psi”, they want Imperial. Start near 35 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 245/65R17.
Estimated 245/65R17 pressure by load
These 245/65R17 load steps are ± a few PSI from 35. They are not a licence to ignore a printed second column on a van or estate.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only / unladen | 35 psi / 2.41 bar / 241 kPa | 36 psi / 2.48 bar / 248 kPa |
| Typical occupancy | 35 psi / 2.41 bar / 241 kPa | 37 psi / 2.55 bar / 255 kPa |
| Motorway + luggage (sketch) | 36 psi / 2.48 bar / 248 kPa | 38 psi / 2.62 bar / 262 kPa |
PSI, bar and kPa
Use the table, then set a cold gauge. 241 kPa is 100 × 2.41 bar on this size.
| PSI | Bar | kPa |
|---|---|---|
| 31 | 2.14 | 214 |
| 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 |
What 245/65R17 means
A 245/65R17 on a SUV / crossover is a geometry. Two cars can share the size and disagree on PSI because mass and axle split differ.
Heavier SUV 17-inch. Rim diameter 17 in; section 245 mm. Estimates on this page assume a typical load index for the SUV / crossover class.
Placard versus sidewall
If a forum says “all 245/65R17 run 35 psi”, ignore it. A Qashqai and a Golf can share a size and not share a sticker.
Cars often seen on 245/65R17
These catalogue models are often seen on 245/65R17 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.
How to set 245/65R17
- Measure before the school run, not after the motorway.
- Write LF / RF / RR / RL. Do not keep 245/65R17 numbers in your head.
- Add air in short bursts toward the placard, using 35 psi only as a map.
- If one 245/65R17 is 4 psi down, hunt for a nail before you blame the weather.
- Log date, ambient temperature and the four readings.
Temperature drift
Roughly 1 psi per 5–6 °C. The table uses 35 psi as a 20 °C baseline for 245/65R17.
| Ambient | Gauge | Bar | kPa | Note |
|---|---|---|---|---|
| −5 °C (hard frost) | 32 psi | 2.21 bar | 221 kPa | Gauge reads low; do not overfill once warm |
| 0 °C | 33 psi | 2.28 bar | 228 kPa | Gauge reads low; do not overfill once warm |
| 8 °C (UK winter morning) | 34 psi | 2.34 bar | 234 kPa | Gauge reads low; do not overfill once warm |
| 20 °C (set cold here) | 35 psi | 2.41 bar | 241 kPa | Baseline for this size sketch |
| 30 °C | 37 psi | 2.55 bar | 255 kPa | Do not bleed a hot 245/65R17 |
| 38 °C (heatwave tarmac) | 38 psi | 2.62 bar | 262 kPa | Do not bleed a hot 245/65R17 |
A cheap gauge and a monthly habit will do more for a set of 245/65R17 than nitrogen upsells.
Questions about 245/65R17
Is the sidewall number correct for 245/65R17?
No. Sidewall PSI or kPa is a maximum for the carcass. Operating pressure is the door-pillar placard.
When does TPMS warn on 245/65R17?
Direct TPMS typically flags about 25% below target — near 26 psi if you were aiming at 35. Fill to the sticker, not to the lamp.
Is 245/65R17 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.
What is 245/65R17 in bar?
35 psi is 2.41 bar. Add a tenth of a bar if the placard’s laden column is higher, which is common on vans that wear this size.
Can I run 245/65R17 at a lower pressure for comfort?
Not as a habit. A soft 245/65R17 cooks the shoulders and dulls steering. Keep load index and stay on the placard.
Handbook: placard · bar vs PSI · cold inflation · all sizes