Free Calculator · Published November 2026
Psi to Bar: Divide 6,894.757 by 100,000
One psi is 0.06894757 bar. That quotient is the NIST psi-to-pascal row, 6.894 757 E+03, divided by the bar-to-pascal row, 1.0 E+05. Ten psi are 0.68947570 bar. Sixty psi are 4.13685420 bar at eight decimals. The reverse of one bar is about 14.5038 psi at four decimals, and that reverse figure is labeled as rounded.
This page does not use the kilopascal row, and it does not call the quotient exact.
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Book a DemoHow Psi to Bar Uses 0.06894757
Psi to bar follow two rows on the NIST Guide to the SI, Appendix B.8. The psi row multiplies by 6.894 757 and E+03 to reach pascals. The bar row multiplies by 1.0 and E+05 to reach pascals. Dividing those two factors is the step this page takes. Kilopascals stay on the other converter.
All calculations are estimates based on historical information and should be verified by the user.
Important: this is a unit change
All calculations are estimates based on historical information and should be verified by the user. This tool is provided as a free service for planning purposes only and is not a substitute for a professional assessment, a supplier quote, or applicable local code requirements.
What Is Psi to Bar Using?
The gauge still reads the pressure you typed. Psi to bar only rename it. A well switch, a tank label, and a European spec sheet can use different words for one reading. Write both words on the ticket so the next visit does not treat them as two pressures.
The two pascal rows
NIST prints pound-force per square inch into pascals as 6.894 757 E+03. It prints bar into pascals as 1.0 E+05. Spaces in the table are digit groups, so the first factor is 6894.757 pascals per psi and the second is 100,000 pascals per bar. 6894.757 divided by 100,000 is 0.06894757.
The same NIST page says factors in boldface are exact. This fetch did not preserve boldface, so this page does not call 0.06894757 exact. It also does not call 6.894757, the kilopascal factor, the bar factor. That row is psi to kilopascals.
How many bar are in these psi?
Each row multiplies by 0.06894757 and stops at eight decimals. Forty psi, a common switch setting on a note, are 2.75790280 bar. Sixty psi are 4.13685420 bar. Those products are not a rating for a tank.
| Psi | Bar |
|---|---|
| 1 | 0.06894757 |
| 2 | 0.13789514 |
| 5 | 0.34473785 |
| 10 | 0.68947570 |
| 40 | 2.75790280 |
| 60 | 4.13685420 |
Worked examples
| Case | Psi | Bar |
|---|---|---|
| 1 psi | 1.00000000 | 0.06894757 |
| 10 psi | 10.00000000 | 0.68947570 |
| 40 psi | 40.00000000 | 2.75790280 |
| 60 psi | 60.00000000 | 4.13685420 |
Bar is not kilopascals
One bar is 100 kilopascals on the same NIST page, because bar to kilopascals is printed as 1.0 E+02. This psi to bar tool does not take that shortcut, and it does not multiply by 6.894757. Feet of head stated as psi stay on feet of head to psi. A pump estimate stays on well pump size.
How should you write psi to bar?
Write five lines before the number leaves this page. A later visit should not have to guess which gauge word was used.
- The entered value, and whether it was psi or bar.
- The quotient, 0.06894757, named as 6894.757 divided by 100,000.
- Both results, at eight decimals.
- Which gauge, switch, or spec sheet the reading came from.
- A note that the kilopascal row was not applied, and that the quotient was not called exact.
What stays off this pressure
One bar divided by 0.06894757 is about 14.5038 psi at four decimals. That reverse figure is the division. It is not a second factor printed on the NIST page, and this tool does not store 14.5 as if it were exact. A gauge that already reads in bar does not need a second constant. Divide by 0.06894757 to see psi. A gauge that already reads in psi multiplies by 0.06894757 to see bar. Either way the note names the two pascal rows. It does not say the switch is set to a code, and it does not replace the cut-in and cut-out printed on the tank label.
Write the gauge word next to the number before the number moves to a spec sheet that uses the other word. A European pump curve and a domestic pressure switch can describe one reading with two labels. Leaving only one label is how the next visit treats them as two pressures and changes a setting that was already right. The eight decimals are the product of the printed factors. Rounding earlier, then multiplying again, is a different number. Keep the quotient on the ticket if you round the display for the customer.
A pressure switch labeled in one unit and a pump curve labeled in the other are still one system. Convert before you change the cut-in. Write the original reading, the quotient, and the converted reading on the same line of the work order. If the customer only wants the display rounded to two decimals, keep the eight-decimal product in the note so the next visit can see what was rounded. Two-decimal rounding is a display choice. It is not a new factor.
A water treatment dealer who saves the 0.06894757 note will not paste the kilopascal factor onto a bar spec. This conversion does not size a tank and does not say a switch is set correctly. A private-well lab sheet is still the well water testing guide.
Frequently Asked Questions
How does psi to bar use 0.06894757?
Divide the NIST psi-to-pascal factor, 6.894 757 E+03, by the bar-to-pascal factor, 1.0 E+05. The quotient is 0.06894757 bar per psi. Multiply psi by that quotient. Divide bar by the same quotient to go back. Boldface was not preserved, so the quotient is not called exact.
Is psi to bar the same as psi to kilopascals?
No. Psi to kilopascals multiplies by 6.894757, the NIST row printed as 6.894 757 E+00. This page does not use that row. It divides the pascal row by the bar row.
What is one psi in bar?
One psi is 0.06894757 bar. Ten psi are 0.68947570 bar. Sixty psi are 4.13685420 bar at eight decimals. Those products use the quotient of the two NIST pascal rows.
How many psi are in one bar?
One divided by 0.06894757 is about 14.5038 psi per bar at four decimals. The page divided. It did not print a second NIST row for that reverse figure.
Save 0.06894757 Next to the Gauge
The psi, the bar, and the two NIST pascal rows belong on the customer record.
Get a Free DemoAll calculations are estimates based on historical information and should be verified by the user. This tool is provided as a free service for planning purposes only and is not a substitute for a professional assessment, a supplier quote, or applicable local code requirements.