235/75R15 · pickup / double-cab · kPa
241 kPa for 235/75R15 tyres
- Size
- 235/75R15
- Class
- pickup / double-cab
- Planning PSI
- 35
- Planning bar
- 2.41
kPa
241
2.41 bar · 35 psi · 100 kPa = 1 bar
235/75R15 · 35 psi · 2.41 bar · 241 kPa — estimates. Placard wins.
Kilopascals show up on some Asian stickers and ISO sheets. 241 kPa is the planning midpoint for 235/75R15 (2.41 bar / 35 psi). 100 kPa = 1 bar. TPMS typically warns near 26 psi (about 25% below a 35 psi target). That is already a soft tyre.
kPa, bar and PSI
1 bar ≈ 14.5 psi; 1 psi ≈ 6.89 kPa. Planning midpoint for 235/75R15: 35 psi = 2.41 bar = 241 kPa.
| kPa | Bar | PSI |
|---|---|---|
| 214 | 2.14 | 31 |
| 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 |
Estimated 235/75R15 pressure by load
Load moves the rear first on a pickup / double-cab. If the factory placard already has a laden column, use that — not this sketch for 235/75R15.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only / unladen | 35 psi / 2.41 bar / 241 kPa | 37 psi / 2.55 bar / 255 kPa |
| Typical occupancy | 36 psi / 2.48 bar / 248 kPa | 39 psi / 2.69 bar / 269 kPa |
| Payload / towing (sketch) | 37 psi / 2.55 bar / 255 kPa | 40 psi / 2.76 bar / 276 kPa |
What 235/75R15 means
Read 235/75R15 as width / aspect R rim. Nothing in the size string is a pressure. Pressure lives on the car, not moulded as 205 or 55.
Older compact truck. Rim diameter 15 in; section 235 mm. Estimates on this page assume a typical load index for the pickup / double-cab class.
Placard versus sidewall
This website maps size searches such as “235/75R15 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 35 psi as a 20 °C baseline for 235/75R15.
| 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 235/75R15 |
| 38 °C (heatwave tarmac) | 38 psi | 2.62 bar | 262 kPa | Do not bleed a hot 235/75R15 |
How to set 235/75R15
- Measure before the school run, not after the motorway.
- Write LF / RF / RR / RL. Do not keep 235/75R15 numbers in your head.
- Add air in short bursts toward the placard, using 35 psi only as a map.
- If one 235/75R15 is 4 psi down, hunt for a nail before you blame the weather.
- Log date, ambient temperature and the four readings.
Cars often seen on 235/75R15
These catalogue models are often seen on 235/75R15 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.
A cheap gauge and a monthly habit will do more for a set of 235/75R15 than nitrogen upsells.
Questions about 235/75R15
What PSI should 235/75R15 tyres be?
A pickup / double-cab planning figure is about 35 psi cold (2.41 bar / 241 kPa). Confirm on the vehicle placard — two cars can share 235/75R15 and not share a sticker.
What is 235/75R15 in kPa?
241 kPa is the planning midpoint (100 kPa = 1 bar). 248 kPa is one PSI higher.
Can I run 235/75R15 at a lower pressure for comfort?
Not as a habit. A soft 235/75R15 cooks the shoulders and dulls steering. Keep load index and stay on the placard.
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.
Is the sidewall number correct for 235/75R15?
No. Sidewall PSI or kPa is a maximum for the carcass. Operating pressure is the door-pillar placard.
Handbook: placard · bar vs PSI · cold inflation · all sizes