Pressure Unit Converter
Effortlessly switch between any pressure units. Our tool provides instant and accurate conversions for your needs.
Fast, Free, Private Pressure Unit Converter (Offline)
Convert pressure instantly Pa, kPa, MPa, bar, mbar/hPa, psi, atm, Torr/mmHg, inHg, inH2O, kgf/cm², and psf. 100% client side, lifetime free, unlimited use. No uploads, no sign ups, truly private.
Top, fast, best-in-class, and unlimited. Your information is 100% confidential and secure.
Why people love this pressure converter
Offline & secure
Runs entirely in your browser. Your values never leave your device.
Unlimited & free forever
No accounts, no limits convert as much as you want.
Fast & simple
Pick units, type a value, get results instantly with clear precision.
Works everywhere
Modern browsers on Windows, Mac, Linux, and mobile devices.
No data collected
100% client-side processing keeps your data private.
Accurate results
Reliable conversion factors with smart rounding for readability.
Popular uses worldwide
Engineering & hydraulics
Convert MPa/bar/psi for designs, pumps, and valves.
HVAC & refrigeration
Switch between kPa, bar, and psi for gauges and specs.
Automotive & tires
Convert bar↔psi for recommended tire pressures.
Manufacturing & process
Standardize across Pa, kPa, kgf/cm², and psi.
Medical & laboratory
Convert mmHg/Torr for blood pressure and vacuum systems.
Meteorology & aviation
Use hPa/mbar and inHg for weather and altimeter settings.
How to convert pressure units
- Select your “From” unit (e.g., psi).
- Enter a value (e.g., 35).
- Select your “To” unit (e.g., bar).
- See instant results and the 1 unit summary below.
- Use “Reset” to start again.
Tip: You can edit either side both fields update intelligently.
Supported units
Best practices
- Know if your value is gauge (psig) or absolute (psia) before converting or sharing.
- Use standard conditions for column units (mmHg, inHg, mmH₂O, inH₂O) temperature affects density.
- Round only at the end if you’ll do further calculations.
- Keep original values and unit notes for audits and specs.
Frequently Asked Questions
Is it private and secure?
Yes. Everything runs locally in your browser no uploads, no tracking, no servers.
Is it really free and unlimited?
Yes. Lifetime free, unlimited conversions, and no sign ups.
Which units are supported?
Pa, kPa, MPa, bar, mbar/hPa, psi, psf, atm, Torr, mmHg, inHg, mmH₂O, inH₂O, kgf/cm², and N/mm².
Does it work offline?
Yes. Your browser can cache assets after the first visit and run offline.
How accurate are results?
We use precise conversion constants (e.g., 1 atm = 101325 Pa, 1 Torr ≈ 133.322 Pa) and smart rounding.
Gauge vs absolute?
Gauge (psig) is relative to ambient pressure; absolute (psia) is relative to vacuum. Convert like-for-like.
Global availability (GEO)
Built for users worldwide: USA, UK, Canada, Australia, India, EU (Germany, France, Spain, Italy, Netherlands), Middle East (UAE, Saudi Arabia), Asia (Singapore, Malaysia, Philippines, Indonesia, Japan, South Korea), Africa (Nigeria, South Africa, Egypt), and Latin America (Brazil, Mexico, Argentina).
Also searched as: pressure unit converter, convert psi to bar, bar to psi, kPa to psi, psi to kPa, Pa to atm, mmHg to kPa, inHg to hPa, MPa to psi, kg/cm² to bar, tyre pressure converter, weather pressure converter.
Multilingual: convertidor de presión (ES), convertisseur de pression (FR), Druckumrechner (DE), convertitore di pressione (IT), conversor de pressão (PT), конвертер давления (RU), 圧力換算 (JA), 压力换算 (ZH), 압력 변환기 (KO), basınç dönüştürücü (TR), przelicznik ciśnienia (PL), druk omrekenen (NL), bộ chuyển đổi áp suất (VI), konverter tekanan (ID), เครื่องแปลงหน่วยความดัน (TH), محول الضغط (AR), दबाव कनवर्टर (HI).
Common conversions: psi to bar, bar to psi, kPa to psi, psi to kPa, Pa to atm, atm to kPa, MPa to psi, hPa/mbar to inHg, Torr to kPa, kgf/cm² to bar, psf to Pa, and more. Try examples like 2 bar to psi, 100 kPa to psi, 1 atm to kPa, 1013 hPa to inHg.
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