Free tool · no sign-up · runs in your browser
Hydraulic Gauge Pressure Converter: psi, bar, MPa, kPa, kgf/cm²
Type a value in any box and the others update. For reading a hydraulic pull tester's gauge in one unit when the chart or certificate uses another.
Pressure
Nothing you type is uploaded or saved.
psi to bar table
| psi | bar | MPa |
|---|
| 100 psi | 6.89 bar | 0.689 MPa |
| 250 psi | 17.24 bar | 1.724 MPa |
| 500 psi | 34.47 bar | 3.447 MPa |
| 750 psi | 51.71 bar | 5.171 MPa |
| 1,000 psi | 68.95 bar | 6.895 MPa |
| 1,500 psi | 103.42 bar | 10.342 MPa |
| 2,000 psi | 137.90 bar | 13.790 MPa |
| 2,500 psi | 172.37 bar | 17.237 MPa |
| 3,000 psi | 206.84 bar | 20.684 MPa |
| 4,000 psi | 275.79 bar | 27.579 MPa |
| 5,000 psi | 344.74 bar | 34.474 MPa |
| 6,000 psi | 413.69 bar | 41.369 MPa |
| 8,000 psi | 551.58 bar | 55.158 MPa |
| 10,000 psi | 689.48 bar | 68.948 MPa |
bar to psi table
| bar | psi | MPa |
|---|
| 10 bar | 145 psi | 1.0 MPa |
| 25 bar | 363 psi | 2.5 MPa |
| 50 bar | 725 psi | 5.0 MPa |
| 100 bar | 1,450 psi | 10.0 MPa |
| 150 bar | 2,176 psi | 15.0 MPa |
| 200 bar | 2,901 psi | 20.0 MPa |
| 250 bar | 3,626 psi | 25.0 MPa |
| 300 bar | 4,351 psi | 30.0 MPa |
| 400 bar | 5,802 psi | 40.0 MPa |
| 500 bar | 7,252 psi | 50.0 MPa |
| 700 bar | 10,153 psi | 70.0 MPa |
The conversion factors
All factors come from exact definitions, so the only rounding is in the display: 1 psi = 1 lbf/in² = 6,894.757 Pa (1 lbf = 4.4482216152605 N, 1 in = 25.4 mm), 1 bar = 100 kPa = 0.1 MPa, 1 kgf/cm² = 98.0665 kPa. The psi table is rounded to 0.01 bar and 0.001 MPa, the bar table to whole psi; the converter shows up to four decimals.
This page converts gauge units only. To turn a gauge reading into load you also need the ram's effective area: the gauge pressure to load calculator does the conversion and prints a load chart, and the ram effective area calculator estimates the area from the piston and inner seal diameters. For stress results (MPa, psi, ksi) use the stress unit converter.
Record the results in the full report workbook
The Fastener & Anchor Pull-Test Report Templates pack has a 40-row proof-test report with automatic PASS/FAIL, ultimate-load statistics, a calibration log, a unit converter, a printable procedure checklist and a standards index. $49 one-time, from Quality Tester Solutions LLC, the company behind Force-Test pull testers.