185/60R15 · passenger car · PSI
185/60R15 PSI chart (32 psi planning figure)
- Size
- 185/60R15
- Class
- passenger car
- Planning PSI
- 32
- Planning bar
- 2.21
psi
32
2.21 bar · 221 kPa · passenger car planning figure
185/60R15 · 32 psi · 2.21 bar · 221 kPa — estimates. Placard wins.
PSI is the garage-hose number. For 185/60R15 a typical passenger car planning figure is 32 psi cold — about 2.21 bar or 221 kPa. TPMS typically warns near 24 psi (about 25% below a 32 psi target). That is already a soft tyre.
Estimated 185/60R15 pressure by load
Load moves the rear first on a passenger car. If the factory placard already has a laden column, use that — not this sketch for 185/60R15.
| Condition | Front (est.) | Rear (est.) |
|---|---|---|
| Driver only / unladen | 32 psi / 2.21 bar / 221 kPa | 32 psi / 2.21 bar / 221 kPa |
| Typical occupancy | 33 psi / 2.28 bar / 228 kPa | 34 psi / 2.34 bar / 234 kPa |
| Motorway + luggage (sketch) | 34 psi / 2.34 bar / 234 kPa | 35 psi / 2.41 bar / 241 kPa |
PSI, bar and kPa
1 bar ≈ 14.5 psi; 1 psi ≈ 6.89 kPa. Planning midpoint for 185/60R15: 32 psi = 2.21 bar = 221 kPa.
| PSI | Bar | kPa |
|---|---|---|
| 28 | 1.93 | 193 |
| 29 | 2.00 | 200 |
| 30 | 2.07 | 207 |
| 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 |
What 185/60R15 means
Read 185/60R15 as width / aspect R rim. Nothing in the size string is a pressure. Pressure lives on the car, not moulded as 205 or 55.
Very common small-hatch OEM. Rim diameter 15 in; section 185 mm. Estimates on this page assume a typical load index for the passenger car class.
Placard versus sidewall
If a forum says “all 185/60R15 run 32 psi”, ignore it. A Qashqai and a Golf can share a size and not share a sticker.
Cars often seen on 185/60R15
These catalogue models are often seen on 185/60R15 or a close OEM neighbour. Open the vehicle chart for axle-specific PSI and bar.
How to set 185/60R15
- Park so the 185/60R15 tyres are cold (three hours, or less than about a mile).
- Read the door-pillar placard for that car — not the 185/60R15 sidewall maximum.
- If the sticker is missing, 32 psi / 2.21 bar is only a passenger car 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.
Temperature drift
Roughly 1 psi per 5–6 °C. The table uses 32 psi as a 20 °C baseline for 185/60R15.
| Ambient | Gauge | Bar | kPa | Note |
|---|---|---|---|---|
| −5 °C (hard frost) | 29 psi | 2 bar | 200 kPa | Gauge reads low; do not overfill once warm |
| 0 °C | 30 psi | 2.07 bar | 207 kPa | Gauge reads low; do not overfill once warm |
| 8 °C (UK winter morning) | 31 psi | 2.14 bar | 214 kPa | Gauge reads low; do not overfill once warm |
| 20 °C (set cold here) | 32 psi | 2.21 bar | 221 kPa | Baseline for this size sketch |
| 30 °C | 34 psi | 2.34 bar | 234 kPa | Do not bleed a hot 185/60R15 |
| 38 °C (heatwave tarmac) | 35 psi | 2.41 bar | 241 kPa | Do not bleed a hot 185/60R15 |
Keep 185/60R15 on the printed band for that car; 32 psi is a size sketch, not a second VIN label.
Questions about 185/60R15
What PSI should 185/60R15 tyres be?
A passenger car planning figure is about 32 psi cold (2.21 bar / 221 kPa). Confirm on the vehicle placard — two cars can share 185/60R15 and not share a sticker.
What is 185/60R15 in kPa?
221 kPa is the planning midpoint (100 kPa = 1 bar). 228 kPa is one PSI higher.
Can I run 185/60R15 at a lower pressure for comfort?
Not as a habit. A soft 185/60R15 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 185/60R15?
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