PSI to bar — car tire (32 psi)
Input
32 psiOutput
2.206 bar · 220.6 kPa · 0.2179 MPaUS tire stickers use PSI; European gauges use bar. Formula: bar = psi × 0.0689476.
All conversions normalize through the SI pascal (Pa) using NIST-derived factors. Gauge vs absolute offsets are not applied automatically—confirm reference type for tires and weather.
Skip to pressure converterA pressure converter translates values between pressure units by normalizing through pascals (Pa)—the SI base unit. Common inputs include PSI (pounds per square inch) for US tires and pneumatics, bar and kPa for European engineering, MPa for hydraulics, hectopascals (hPa) for weather, and mmHg or torr for medical and vacuum work.
The conversion formula is: target = source × (source unit in Pa ÷ target unit in Pa). For example, PSI to bar uses 1 psi = 68,894.76 Pa and 1 bar = 100,000 Pa, so 1 psi ≈ 0.06895 bar.
EverydayTools shows live equivalents across all supported units, copy-ready results, and gauge-vs-absolute guidance. Calculations run locally in your browser.
Every value is converted to pascals first, then to the target unit—standard SI practice for consistent engineering results.
Formula
pascals = input × (Pa per source unit)
output = pascals ÷ (Pa per target unit)Type a number (e.g. 32 for tire PSI or 1013 for weather hPa). Commas are stripped automatically.
Select units from the dropdowns—PSI to bar, kPa to PSI, MPa to bar, or any pair. Use quick presets for common jobs.
The all-unit table updates instantly—every row shows the equivalent value without extra clicks.
Copy the formatted conversion line or the 1:1 factor for documentation. Confirm gauge vs absolute before weather comparisons.
Input
32 psiOutput
2.206 bar · 220.6 kPa · 0.2179 MPaUS tire stickers use PSI; European gauges use bar. Formula: bar = psi × 0.0689476.
Input
700 kPaOutput
101.5 psi · 7 bar · 0.7 MPaDivide kPa by 6.89476 to get PSI: 700 ÷ 6.89476 ≈ 101.5 psi.
Input
0.4 MPaOutput
4 bar · 58.0 psi · 400 kPa1 MPa = 10 bar exactly (both SI-derived). Multiply MPa by 10 for bar.
Input
1013 hPaOutput
29.91 inHg · 1.013 bar · 14.69 psi (absolute)Standard sea-level pressure ≈ 1013 hPa = 29.92 inHg. Weather data is absolute, not gauge.
Common real-world scenarios where this tool saves time.
Automotive technicians and drivers
Convert sidewall PSI to bar for EU pumps and TPMS displays. Remember tire specs are usually gauge pressure, not absolute.
Mechanical and civil engineers
Translate hydraulic ratings, concrete curing pressures, and pneumatic system limits between metric and US customary units.
Students and lab technicians
Check homework conversions between SI pascals, standard atmospheres, and mercury-manometer units with shown formulas.
Meteorology and aviation
hPa and mbar are identical (1 hPa = 1 mbar). Convert synoptic values to inHg for US NOAA-style reports.
Quick reference for engineering and everyday pressure unit conversion (approximate).
| From | To | Multiply by | Example |
|---|---|---|---|
| 1 psi | bar | 0.06895 | 32 psi → 2.21 bar |
| 1 bar | psi | 14.5038 | 2 bar → 29.0 psi |
| 1 kPa | psi | 0.14504 | 100 kPa → 14.5 psi |
| 1 MPa | bar | 10 | 0.4 MPa → 4 bar |
| 1 atm | psi | 14.6959 | 1 atm → 14.7 psi |
| 1 kgf/cm² | psi | 14.22 | Hydraulic specs |
| 1 inH₂O | Pa | 249.09 | HVAC duct static |
| 1 mmHg | kPa | 0.13332 | 120 mmHg → 16.0 kPa |
| 1013 hPa | inHg | 0.02953 | 1013 hPa → 29.91 inHg |
Every conversion here uses Pa as the SI bridge. If a result looks wrong, check that you picked gauge vs absolute context—not a unit math error.
PSI→bar, kPa→PSI, and hPa→inHg chips set units in one tap—faster than scrolling grouped dropdowns on a busy shop floor.
Tire gauges read gauge pressure (zero at atmosphere). Synoptic weather uses absolute hPa/mbar. This tool does not add ~14.7 psi atmospheric offset automatically.
Duct design specs often quote inH₂O or mmH₂O. Use the HVAC group—not psi—for static pressure checks against manufacturer curves.
Paste multiple pressure values (one per line) under Batch convert to download a spreadsheet column in your current From → To units—ideal for hydraulic tables and QA logs.
32 psi on a gauge is gauge pressure. Absolute at sea level would be ~46.7 psia. Do not add atmosphere unless your problem requires absolute values.
Duct static is usually inH₂O or Pa. 0.5 inH₂O ≈ 124 Pa—very different scale from psi.
mbar equals hPa (100 Pa). bar is 1000 mbar. Double-check which label your datasheet uses.
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Multiply PSI by 0.0689476 to get bar (or divide bar by 14.5038 to get PSI). Example: 32 psi × 0.0689476 = 2.206 bar. Tire pressures are usually gauge PSI, not absolute.
Multiply bar by 14.5038 to get PSI. Example: 2.2 bar × 14.5038 ≈ 31.9 psi. European tire pumps often display bar; US specs list psi.
Divide kPa by 6.89476 (or multiply PSI by 6.89476 for the reverse). Example: 100 kPa ÷ 6.89476 ≈ 14.50 psi. 1 kPa = 1,000 Pa.
Multiply MPa by 10 to get bar (1 MPa = 1,000,000 Pa; 1 bar = 100,000 Pa). Example: 0.5 MPa = 5 bar ≈ 72.5 psi.
target = source × (pascals per source unit ÷ pascals per target unit). All units are converted through Pa first, which keeps engineering pressure calculator results consistent across SI and imperial names.
1 atm = 101,325 Pa = 101.325 kPa = 1.01325 bar = 14.696 psi = 760 mmHg = 760 torr = 1013.25 hPa. Used as a reference in physics and engineering conditions.
Absolute pressure is measured from vacuum (0 Pa). Gauge pressure is relative to local atmosphere. A tire gauge showing 32 psi is gauge—absolute would be roughly 32 + 14.7 ≈ 46.7 psia at sea level.
Select inH₂O as the source unit and Pa or kPa as the target. 1 inH₂O ≈ 249.09 Pa. Typical duct static pressure is 0.25–1.0 inH₂O—use the 0.5 inH₂O preset as a starting point.
1 kgf/cm² ≈ 98,066.5 Pa ≈ 0.967 atm ≈ 14.22 psi. Common on Asian hydraulic and pneumatic spec sheets. Select kgf/cm² in the Engineering group to convert to bar or MPa.
Yes—1 mbar = 1 hPa = 100 Pa. Weather charts use hPa; some EU documents say mbar. Both are available in the Weather group.
Use Copy link or Share—your value and units encode into the URL (e.g. ?v=32&from=psi&to=bar) so colleagues open the same conversion instantly.
Yes. Export all units CSV downloads every equivalent for your current value. Batch convert accepts multiple values (one per line) and downloads a CSV using your From → To units.
Tap Pin next to any unit dropdown to add it to your favorites. Pinned units appear at the top of the list and as quick From/To chips for faster HVAC and shop-floor workflows.
Pressure Converter keeps inputs on your device—nothing is uploaded to EverydayTools servers for core calculations.
Part of Unit Converters
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Reviewed by EverydayTools Editorial Team on 2026-06-02.