235/65R16C · C-type van · Bar
235/65R16C tyre pressure in bar
- Size
- 235/65R16C
- Class
- C-type van
- Planning PSI
- 46
- Planning bar
- 3.17
bar
3.17
46 psi · 317 kPa · not a second factory sticker
235/65R16C · 46 psi · 3.17 bar · 317 kPa — estimates. Placard wins.
European stickers print bar. 235/65R16C often sits near 3.17 bar on a C-type van (46 psi / 317 kPa). 3.17 bar is not “46 divided by ten”. Loaded large van. These rows are estimates interpolated for the size, not OEM for a named VIN. 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.
Bar, PSI and kPa
1 bar ≈ 14.5 psi; 1 psi ≈ 6.89 kPa. Planning midpoint for 235/65R16C: 46 psi = 3.17 bar = 317 kPa.
| Bar | PSI | kPa |
|---|---|---|
| 2.90 | 42 | 290 |
| 2.96 | 43 | 296 |
| 3.03 | 44 | 303 |
| 3.10 | 45 | 310 |
| 3.17 | 46 | 317 |
| 3.24 | 47 | 324 |
| 3.31 | 48 | 331 |
| 3.38 | 49 | 338 |
| 3.45 | 50 | 345 |
| 3.52 | 51 | 352 |
| 3.59 | 52 | 359 |
| 3.65 | 53 | 365 |
| 3.72 | 54 | 372 |
| 3.79 | 55 | 379 |
| 3.86 | 56 | 386 |
| 3.93 | 57 | 393 |
| 4.00 | 58 | 400 |
| 4.14 | 60 | 414 |
| 4.48 | 65 | 448 |
| 5.52 | 80 | 552 |
Estimated 235/65R16C pressure by load
These 235/65R16C load steps are ± a few PSI from 46. They are not a licence to ignore a printed second column on a van or estate.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only / unladen | 46 psi / 3.17 bar / 317 kPa | 49 psi / 3.38 bar / 338 kPa |
| Typical occupancy | 46 psi / 3.17 bar / 317 kPa | 50 psi / 3.45 bar / 345 kPa |
| Payload / towing (sketch) | 47 psi / 3.24 bar / 324 kPa | 55 psi / 3.79 bar / 379 kPa |
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.
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.
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.
How to set 235/65R16C
- Measure before the school run, not after the motorway.
- Write LF / RF / RR / RL. Do not keep 235/65R16C numbers in your head.
- Add air in short bursts toward the placard, using 46 psi only as a map.
- If one 235/65R16C 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 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 |
A cheap gauge and a monthly habit will do more for a set of 235/65R16C than nitrogen upsells.
Questions about 235/65R16C
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.
What is 235/65R16C in bar?
46 psi is 3.17 bar. Add a tenth of a bar if the placard’s laden column is higher, which is common on vans that wear this size.
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 235/65R16C in kPa?
317 kPa is the planning midpoint (100 kPa = 1 bar). 324 kPa is one PSI higher.
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.
Handbook: placard · bar vs PSI · cold inflation · all sizes