150 Pounds per square inch to Bar (150 psi to bar)
150 Pounds per square inch equals 10.3421 Bar. Below is the formula, the worked arithmetic, and what 150 psi typically represents in everyday use.
Formula and worked answer
Formula
bar = psi × 0.0689476
Substituting 150 for psi: 150 × 0.0689476 = 10.3421 bar. The factor 0.0689476 comes from the exact international definition of the Pound per square inch relative to the Bar, so this answer is precise rather than rounded.
What does 150 Pounds per square inch represent?
150 psi (10.34 bar) is the typical maximum pressure for US-market track and time-trial bicycle road tyres and a common reference on high-pressure American floor pumps designed for tubular-tyre applications. Converted to metric the figure is 10.34 bar, which European track-cycling tyre-pressure recommendations instead post as 10.0 bar or 10.5 bar. The 0.34 bar gap with 10.0 bar matters in competition: a US time-trial cyclist naively translating "150 psi" to "10.0 bar" under-inflates by 34 kPa, which is enough to shift the rolling-resistance optimum and slow a 40 km TT split by several seconds. Track cyclists confirm the precise 0.06895 bar-per-psi factor before each event.
Values near 150 psi
- 145 psi=9.9974 bar
- 146 psi=10.0663 bar
- 147 psi=10.1353 bar
- 148 psi=10.2042 bar
- 149 psi=10.2732 bar
- 151 psi=10.4111 bar
- 152 psi=10.48 bar
- 153 psi=10.549 bar
- 154 psi=10.6179 bar
- 155 psi=10.6869 bar
psi to bar reference table around 150
| psi | bar |
|---|---|
| 75 psi | 5.1711 bar |
| 112 psi | 7.7221 bar |
| 145 psi | 9.9974 bar |
| 149 psi | 10.2732 bar |
| 150 psi | 10.3421 bar |
| 151 psi | 10.4111 bar |
| 155 psi | 10.6869 bar |
| 188 psi | 12.9621 bar |
| 225 psi | 15.5132 bar |
| 300 psi | 20.6843 bar |
Convert a different value
Looking for a different number of Pounds per square inch? Use the full psi to bar converter to enter any value, see the worked formula, and read the full background on the Pound per square inch and the Bar. To go the other direction, the bar to psi converter applies the inverse factor and is the page to bookmark if you usually start in Bar.