AI Unit Converters
v1.0

Pound per Sq Inch to Bar Converter

1 Pound per Sq Inch is equal to 0.068948Bars (bar). To convert pound per sq inchs to bars, multiply the value by 0.068948 or use the interactive formula breakdown and reference tables below.

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Pressure Converter

Formula: --
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Step-by-Step Mathematical Derivation

Verified SI Standard
➡️ Convert Pound per Sq Inch to Bar
Value in bar = Value in psi × 0.06894757

To convert any quantity from Pound per Sq Inch to Bar, multiply the quantity by the constant conversion factor 0.06894757.

⬅️ Convert Bar to Pound per Sq Inch (Inverse)
Value in psi = Value in bar × 14.50377

To reverse the operation, multiply your Bar figure by 14.50377 (or divide by 0.06894757).

🔢 Step-by-Step Calculation Procedure:
  1. Identify the starting value in Pound per Sq Inch (psi).
  2. Apply the exact linear conversion factor: 1 psi = 0.06894757 bar.
  3. Multiply the input value by 0.06894757 to obtain the exact measurement in Bar (bar).
  4. Verify precision against standard BIPM / NIST SP 811 statutory guidelines.
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All-Units Instant Matrix

Live Computed
Pascal --
Pa
Kilopascal --
kPa
Bar --
bar
Pound per Sq Inch --
psi
Standard Atmosphere --
atm
Torr (mmHg) --
Torr
Inch of Mercury --
inHg
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Printable Reference Cheat Sheet

Generate clean offline reference PDF tables for Pressure

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Academic & Research Citation Exporter

Cite this mathematical formula and conversion factor in research papers and wikis

BibTeX / APA / IEEE 
@misc{ai_unit_converter_pound_per_sq_inch_to_bar,
  author       = {AI Unit Converters Standards Board},
  title        = {Exact Pound per Sq Inch to Bar Conversion Factor and Mathematical Derivation},
  year         = {2026},
  howpublished = {\url{https://aiunitconverters.com/pressure/psi-to-bar}},
  note         = {Derived from NIST Special Publication 811 and BIPM SI Brochure}
}

📊Pound per Sq Inch to Bar Conversion Tables

Pound per Sq Inchs (psi)Bars (bar)
1psi0.0689bar
2psi0.1379bar
5psi0.3447bar
10psi0.6895bar
15psi1.0342bar
20psi1.379bar
25psi1.7237bar
50psi3.4474bar
75psi5.1711bar
100psi6.8948bar
250psi17.2369bar
500psi34.4738bar
1000psi68.9476bar
5000psi344.7379bar
10000psi689.4757bar
Bars (bar)Pound per Sq Inchs (psi)
1bar14.5038psi
2bar29.0075psi
5bar72.5189psi
10bar145.0377psi
15bar217.5566psi
20bar290.0755psi
25bar362.5943psi
50bar725.1887psi
75bar1,087.783psi
100bar1,450.3774psi
250bar3,625.9434psi
500bar7,251.8869psi
1000bar14,503.7738psi
5000bar72,518.8689psi
10000bar145,037.7378psi
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❓ Frequently Asked Questions: Pound per Sq Inch to Bar

How do you convert Pound per Sq Inchs to Bars?▼

1 Pound per Sq Inch is equal to 0.068948 Bars. Multiply your input value in Pound per Sq Inchs by 0.068948 to obtain the exact equivalent in Bars.

How many Bars are in 1 Pound per Sq Inch?▼

There are exactly 0.068948Bars (bar) in 1 Pound per Sq Inch (psi).

Are these calculations calibrated against official measurement standards?▼

Yes. All conversion factors on AI Unit Converters are calibrated and cross-verified against official BIPM SI Brochure (9th Edition), NIST SP 811, and ISO 80000 measurement metrology standards.

Related pressure Converters

Pound per Sq Inch to PascalPound per Sq Inch to KilopascalPound per Sq Inch to BarPound per Sq Inch to Standard AtmospherePound per Sq Inch to Torr (mmHg)Pound per Sq Inch to Inch of Mercury