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Bar to PSI
Pumps and tires show bar one day and PSI the next. Enter a value and the other units appear instantly.
1 bar = 14.5 PSI
1 PSI = 0.069 bar · 1 bar = 100 kPa. Mental shortcut: bar × 14.5, or roughly bar × 15 minus a bit.
Conversion chart
Common bike pressures at a glance:
| bar | PSI |
|---|---|
| 1.0 bar | 14.5 PSI |
| 1.5 bar | 21.8 PSI |
| 2.0 bar | 29.0 PSI |
| 2.5 bar | 36.3 PSI |
| 3.0 bar | 43.5 PSI |
| 3.5 bar | 50.8 PSI |
| 4.0 bar | 58.0 PSI |
| 4.5 bar | 65.3 PSI |
| 5.0 bar | 72.5 PSI |
| 5.5 bar | 79.8 PSI |
| 6.0 bar | 87.0 PSI |
| 6.5 bar | 94.3 PSI |
| 7.0 bar | 101.5 PSI |
| 7.5 bar | 108.8 PSI |
| 8.0 bar | 116.0 PSI |
| PSI | bar |
|---|---|
| 20 PSI | 1.38 bar |
| 25 PSI | 1.72 bar |
| 30 PSI | 2.07 bar |
| 35 PSI | 2.41 bar |
| 40 PSI | 2.76 bar |
| 45 PSI | 3.10 bar |
| 50 PSI | 3.45 bar |
| 55 PSI | 3.79 bar |
| 60 PSI | 4.14 bar |
| 65 PSI | 4.48 bar |
| 70 PSI | 4.83 bar |
| 75 PSI | 5.17 bar |
| 80 PSI | 5.52 bar |
| 85 PSI | 5.86 bar |
| 90 PSI | 6.21 bar |
| 95 PSI | 6.55 bar |
| 100 PSI | 6.89 bar |
| 105 PSI | 7.24 bar |
| 110 PSI | 7.58 bar |
| 115 PSI | 7.93 bar |
| 120 PSI | 8.27 bar |
Typical bike pressures
- Road: about 50–90 PSI (3.5–6 bar), see the road bike pressure chart
- Gravel: about 22–50 PSI (1.5–3.5 bar), see the gravel chart
- MTB: about 18–32 PSI (1.2–2.2 bar), see the MTB chart
Bar, PSI and kPa: what’s the difference?
Bar is common in Europe; 1 bar is roughly atmospheric pressure at sea level. PSI (pounds per square inch) is the usual unit in the US and on many pumps. kPa (kilopascal) sometimes appears on tires: 100 kPa is 1 bar.
Tire gauges always show gauge pressure, the pressure above the surrounding air. So 0 on the pump doesn’t mean “vacuum”, it means “the same as outside”.
How precise do I need to be?
On a road bike, whole PSI or one decimal in bar is plenty. At MTB pressures around 22 PSI, precision matters more: 1 PSI is almost 5% there. That’s why TireDial always shows both units and lets you adjust in steps of 1 PSI or 0.1 bar.
Your exact pressure in seconds. TireDial uses your weight, tires and rims, tubeless or tubes, surface and wet conditions, front and rear separately, and always respects your maximum pressure. Free for iPhone.
FAQ
How many PSI is 1 bar?
1 bar is 14.5 PSI (14.5038 exactly).
How do I convert PSI to bar?
Divide PSI by 14.5. So 60 PSI is about 4.1 bar and 30 PSI about 2.1 bar.
How many bar is 100 PSI?
100 PSI is about 6.9 bar.
How many PSI is 5 bar?
5 bar is about 72.5 PSI, which is also the maximum for hookless road rims.
Keep reading
TireDial’s values and the ones on this page are well-founded starting points, not manufacturer specifications. Always stay within your tire and rim limits. See also the safety notice.