Pressure Converter
Tyre pressure in psi while your pump shows bar? Convert pressure exactly between psi, bar, kPa, pascal and atmospheres — for the car, the bike, a compressor or an engineering job.
結果
2.2063 bar
Result
How this was calculated
- 1To pascal32 psi × 6,894.7573 = 220,632.23 Pa
- 2To bar÷ 100,000 = 2.2063 bar
公式
Result = value × (from-factor ÷ to-factor), relative to the pascal
Every pressure unit has a fixed factor to the pascal, the SI unit: 1 bar = 100,000 Pa, 1 psi = 6,894.757 Pa, 1 atm = 101,325 Pa. The calculator converts your value to pascal first and then to the target unit.
ステップ解説
- 1Enter the pressure value.
- 2Choose the unit you convert from (e.g. psi).
- 3Choose the target unit (e.g. bar) and read the result.
計算例
32 psi to bar (car tyre)
→ ≈ 2.21 bar.
250 kPa to bar
→ 2.5 bar.
Reference table
| psi | bar | kPa |
|---|---|---|
| 20 | 1.38 | 138 |
| 30 | 2.07 | 207 |
| 32 | 2.21 | 221 |
| 35 | 2.41 | 241 |
| 40 | 2.76 | 276 |
| 50 | 3.45 | 345 |
| 60 | 4.14 | 414 |
| 65 | 4.48 | 448 |
| 80 | 5.52 | 552 |
| 100 | 6.89 | 689 |
Common tyre pressures. 1 bar = 100 kPa ≈ 14.5 psi.
よくある間違い
- Confusing psi and bar: 1 bar ≈ 14.5 psi, so the numbers differ a lot.
- Mixing up absolute and gauge pressure (whether atmosphere is included).
- Reading kPa as bar: 100 kPa = 1 bar, not 100 bar.
活用シーン
- Converting tyre pressure from psi (US manual) to bar.
- Checking compressor or line pressure in kPa or bar.
- Converting technical specs to SI units (pascal).
よくある質問
How many bar is 50 psi?
50 psi is about 3.45 bar (50 × 6,894.757 ÷ 100,000).
How many psi is 1 bar?
1 bar is about 14.50 psi.
How many pascal is 1 bar?
1 bar is exactly 100,000 pascal (100 kPa).
What pressure should my car tyre have?
Usually 2.0–2.5 bar (29–36 psi); always check the sticker in the door or fuel flap for your car.
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