100 pounds per square inch to bar
6.895 bar
100 psi = 6.895 bar.
bar
6.895bar
100 psi = 6.895 bar
In short
How many bar is 100 pounds per square inch?
100 psi = 6.895 bar. 1 pounds per square inch = 0.068948 bar, so the working is 100 × 0.068948 = 6.895.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 pounds per square inch = 0.068948 bar 100 × 0.068948 = 6.895
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (bar) | Off by |
|---|---|---|
| Whole number | 7 | +0.10524 |
| 1 decimal | 6.9 | +0.00524 |
| 2 decimals | 6.89 | −0.00476 |
Round trip: take 6.895 bar back the other way and you land on 100.0035 psi — a drift of 0.0035 psi. That gap is the rounding, not the conversion.
What 100 psi looks like
100 psi
Road bicycle territory. A narrow high-pressure tyre carries the same load on far less contact area, so it needs far more pressure.
Frequently asked questions
What is 100 pounds per square inch in bar?
100 pounds per square inch is 6.895 bar. 1 pounds per square inch = 0.068948 bar, so the working is 100 × 0.068948 = 6.895.
How accurate is 6.895 bar?
Rounding to 6.895 bar and converting straight back gives 100.0035 psi, a drift of 0.0035 psi from the 100 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
PSI to Bar Converter
Convert psi to bar — US tyre placards read against a European gauge.
Open the PSI to bar converter →