Convert Kilopounds per Square Inch to Bar
Instantly convert Kilopounds per Square Inch (ksi) to Bar (bar) with our free online calculator.
Formula: ksi to bar — multiply by 68.9476
Reference Table
| Kilopounds per Square Inch (ksi) | Bar (bar) |
|---|---|
| 1 | 68.9476 |
| 5 | 344.738 |
| 10 | 689.476 |
| 25 | 1723.69 |
| 50 | 3447.38 |
| 100 | 6894.76 |
How to Convert Kilopounds per Square Inch to Bar
Formula
To convert Kilopounds per Square Inch (ksi) to Bar (bar): multiply by 68.9476
Step-by-Step
- Start with your value in Kilopounds per Square Inch (ksi).
- Multiply by 68.9476 to perform the conversion.
- The result is your value expressed in Bar (bar).
Conversion Factor
1 ksi = 68.9476 bar
Reverse Factor
1 bar = 0.0145038 ksi
Worked Example
Convert 25 Kilopounds per Square Inch to Bar: 25 ksi = 1723.69 bar
About Kilopound per Square Inch (ksi)
An imperial unit of pressure equal to exactly 1,000 psi (≈ 6.895 MPa). KSI is the standard US unit for reporting material strength: structural-steel yield (A36 = 36 ksi, A992 W-shapes = 50 ksi, A572-Gr50 plate = 50 ksi, A514 quenched-tempered = 100 ksi), bolt-grade tensile strength (SAE Grade 5 = 120 ksi, Grade 8 = 150 ksi, ASTM A325 = 105-120 ksi, A490 = 150 ksi), aluminum aerospace alloys (7075-T6 ultimate = ~83 ksi), and the S-N fatigue curves in MMPDS / ASME Section VIII Division 3. US structural codes (AISC Steel Construction Manual, AASHTO LRFD Bridge Design), aerospace stress reports, and oil-and-gas casing specifications (API 5CT) all express allowables and yield in ksi. When cross-referencing US alloys against international material databases (typically MPa), the conversion ksi × 6.895 → MPa is essentially universal.
About Bar (bar)
A metric unit of pressure equal to exactly 100,000 pascals (100 kPa), approximately the average sea-level atmospheric pressure on Earth (1 atm = 1.01325 bar). Defined by IUPAC and accepted for use with the SI by the BIPM, the bar is not itself an SI-proper unit but is universally recognized in engineering. Bars are the default unit in European industry for compressed gas systems (compressed air at 6-10 bar shop pressure), hydraulics (mobile equipment at 200-400 bar working pressure), and chemical process plants. Car tire pressures in much of the world outside the US are specified in bar (a typical passenger car runs ~2.2 bar / 32 psi cold). Gauges on scuba cylinders (200 bar fill / ~2900 psi), brewery CO₂ tanks, fire suppression systems, and espresso machines (9 bar extraction pressure) all read in bar. 1 bar = 14.504 psi = 100 kPa = 0.9869 atm.
Quick Facts
- 1 Kilopound per Square Inch equals 68.9476 Bar
- 1 Bar equals 0.0145038 Kilopounds per Square Inch
- Kilopound per Square Inch is a unit of pressure
- Bar is a unit of pressure
- This conversion is commonly used in tire inflation, weather reporting, scuba diving, and engineering
- The Kilopound per Square Inch belongs to the imperial system
- The Bar belongs to the metric system
Common Kilopound per Square Inch to Bar Conversions
| Kilopounds per Square Inch (ksi) | Bar (bar) |
|---|---|
| 0.1 | 6.89476 |
| 0.5 | 34.4738 |
| 1 | 68.9476 |
| 2 | 137.895 |
| 5 | 344.738 |
| 10 | 689.476 |
| 14.696 | 1013.25 |
| 15 | 1034.21 |
| 20 | 1378.95 |
| 25 | 1723.69 |
| 50 | 3447.38 |
| 100 | 6894.76 |
| 150 | 10342.1 |
| 200 | 13789.5 |
| 500 | 34473.8 |
| 1000 | 68947.6 |
Understanding Kilopounds per Square Inch
The Kilopound per Square Inch (symbol: ksi) is a unit of pressure. An imperial unit of pressure equal to exactly 1,000 psi (≈ 6.895 MPa). KSI is the standard US unit for reporting material strength: structural-steel yield (A36 = 36 ksi, A992 W-shapes = 50 ksi, A572-Gr50 plate = 50 ksi, A514 quenched-tempered = 100 ksi), bolt-grade tensile strength (SAE Grade 5 = 120 ksi, Grade 8 = 150 ksi, ASTM A325 = 105-120 ksi, A490 = 150 ksi), aluminum aerospace alloys (7075-T6 ultimate = ~83 ksi), and the S-N fatigue curves in MMPDS / ASME Section VIII Division 3. US structural codes (AISC Steel Construction Manual, AASHTO LRFD Bridge Design), aerospace stress reports, and oil-and-gas casing specifications (API 5CT) all express allowables and yield in ksi. When cross-referencing US alloys against international material databases (typically MPa), the conversion ksi × 6.895 → MPa is essentially universal.
It belongs to the imperial measurement system.
Kilopounds per Square Inch are commonly used in tire inflation, weather reporting, scuba diving, and engineering.
Understanding Bar
The Bar (symbol: bar) is a unit of pressure. A metric unit of pressure equal to exactly 100,000 pascals (100 kPa), approximately the average sea-level atmospheric pressure on Earth (1 atm = 1.01325 bar). Defined by IUPAC and accepted for use with the SI by the BIPM, the bar is not itself an SI-proper unit but is universally recognized in engineering. Bars are the default unit in European industry for compressed gas systems (compressed air at 6-10 bar shop pressure), hydraulics (mobile equipment at 200-400 bar working pressure), and chemical process plants. Car tire pressures in much of the world outside the US are specified in bar (a typical passenger car runs ~2.2 bar / 32 psi cold). Gauges on scuba cylinders (200 bar fill / ~2900 psi), brewery CO₂ tanks, fire suppression systems, and espresso machines (9 bar extraction pressure) all read in bar. 1 bar = 14.504 psi = 100 kPa = 0.9869 atm.
It belongs to the metric measurement system.
Bar are commonly used in tire inflation, weather reporting, scuba diving, and engineering.
Why Convert Kilopounds per Square Inch to Bar?
Engineers, mechanics, and scientists frequently need to convert pressure between Kilopounds per Square Inch and Bar when working with different measurement standards. Tire pressure, blood pressure readings, weather barometric measurements, and industrial process specifications may all use different pressure units depending on the region or discipline. Reliable conversion prevents equipment misuse and ensures safety.
Frequently Asked Questions
How do I convert Kilopounds per Square Inch to Bar?
An imperial unit of pressure equal to exactly 1,000 psi (≈ 6. To convert Kilopounds per Square Inch to Bar, multiply by 68.9476. For example, 25 ksi equals 1723.69 bar.
How many Bar are in 1 Kilopound per Square Inch?
There are 68.9476 Bar in 1 Kilopound per Square Inch.
How many Kilopounds per Square Inch are in 1 Bar?
There are 0.0145038 Kilopounds per Square Inch in 1 Bar.
What is the formula for Kilopound per Square Inch to Bar conversion?
The formula is: multiply by 68.9476. This means 1 ksi = 68.9476 bar.
Is a Kilopound per Square Inch bigger than a Bar?
No. One Kilopound per Square Inch is smaller than one Bar because 1 ksi equals 68.9476 bar, which is greater than 1.
When do you need to convert between Kilopounds per Square Inch and Bar?
A metric unit of pressure equal to exactly 100,000 pascals (100 kPa), approximately the average sea-level atmospheric pressure on Earth (1 atm = 1. Kilopound per Square Inch and Bar are both pressure units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.