235/65R16C · C-type van · kPa
317 kPa for 235/65R16C tyres
- Size
- 235/65R16C
- Class
- C-type van
- Planning PSI
- 46
- Planning bar
- 3.17
kPa
317
3.17 bar · 46 psi · 100 kPa = 1 bar
235/65R16C · 46 psi · 3.17 bar · 317 kPa — estimates. Placard wins.
Kilopascals show up on some Asian stickers and ISO sheets. 317 kPa is the planning midpoint for 235/65R16C (3.17 bar / 46 psi). 100 kPa = 1 bar. TPMS typically warns near 35 psi (about 25% below a 46 psi target). That is already a soft tyre. C-type van tyres (the trailing C) are built for load. Copying a Golf’s 2.3 bar onto a {sz} Transit is how you cook a shoulder on the A1.
kPa, bar and PSI
Convert around the 235/65R16C band. 3.17 bar is about 46 psi — not 23, not 33 unless the maths says so.
| kPa | Bar | PSI |
|---|---|---|
| 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 |
| 338 | 3.38 | 49 |
| 345 | 3.45 | 50 |
| 352 | 3.52 | 51 |
| 359 | 3.59 | 52 |
| 365 | 3.65 | 53 |
| 372 | 3.72 | 54 |
| 379 | 3.79 | 55 |
| 386 | 3.86 | 56 |
| 393 | 3.93 | 57 |
| 400 | 4.00 | 58 |
| 414 | 4.14 | 60 |
| 448 | 4.48 | 65 |
| 552 | 5.52 | 80 |
Estimated 235/65R16C pressure by load
Plus-sizing to 235/65R16C from a taller OEM tyre usually keeps the same placard if the load index is equal or higher.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only / unladen | 46 psi / 3.17 bar / 317 kPa | 48 psi / 3.31 bar / 331 kPa |
| Typical occupancy | 46 psi / 3.17 bar / 317 kPa | 49 psi / 3.38 bar / 338 kPa |
| Payload / towing (sketch) | 47 psi / 3.24 bar / 324 kPa | 54 psi / 3.72 bar / 372 kPa |
What 235/65R16C means
A 235/65R16C on a C-type van is a geometry. Two cars can share the size and disagree on PSI because mass and axle split differ.
Loaded large van. Rim diameter 16 in; section 235 mm. Estimates on this page assume a typical load index for the C-type van class.
Placard versus sidewall
The sidewall of a 235/65R16C 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.
Temperature drift
Roughly 1 psi per 5–6 °C. The table uses 46 psi as a 20 °C baseline for 235/65R16C.
| Ambient | Gauge | Bar | kPa | Note |
|---|---|---|---|---|
| −5 °C (hard frost) | 43 psi | 2.96 bar | 296 kPa | Gauge reads low; do not overfill once warm |
| 0 °C | 44 psi | 3.03 bar | 303 kPa | Gauge reads low; do not overfill once warm |
| 8 °C (UK winter morning) | 45 psi | 3.1 bar | 310 kPa | Gauge reads low; do not overfill once warm |
| 20 °C (set cold here) | 46 psi | 3.17 bar | 317 kPa | Baseline for this size sketch |
| 30 °C | 48 psi | 3.31 bar | 331 kPa | Do not bleed a hot 235/65R16C |
| 38 °C (heatwave tarmac) | 49 psi | 3.38 bar | 338 kPa | Do not bleed a hot 235/65R16C |
How to set 235/65R16C
- Park so the 235/65R16C tyres are cold (three hours, or less than about a mile).
- Read the door-pillar placard for that car — not the 235/65R16C sidewall maximum.
- If the sticker is missing, 46 psi / 3.17 bar is only a C-type van 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 235/65R16C
These catalogue models are often seen on 235/65R16C or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.
Keep 235/65R16C on the printed band for that car; 46 psi is a size sketch, not a second VIN label.
Questions about 235/65R16C
Is 235/65R16C 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.
Is the sidewall number correct for 235/65R16C?
No. Sidewall PSI or kPa is a maximum for the carcass. Operating pressure is the door-pillar placard.
When does TPMS warn on 235/65R16C?
Direct TPMS typically flags about 25% below target — near 35 psi if you were aiming at 46. Fill to the sticker, not to the lamp.
What PSI should 235/65R16C tyres be?
A C-type van planning figure is about 46 psi cold (3.17 bar / 317 kPa). Confirm on the vehicle placard — two cars can share 235/65R16C and not share a sticker.
Can I run 235/65R16C at a lower pressure for comfort?
Not as a habit. A soft 235/65R16C cooks the shoulders and dulls steering. Keep load index and stay on the placard.
Handbook: placard · bar vs PSI · cold inflation · all sizes