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Bar to Ksi Converter

Enter the value that you want to convert bar to ksi or ksi to bar.

1 bar = 0.0145038 ksi

Formula: ksi = bar value × 0.0145038

bar to ksi

bar
0.14504ksi

10 bar = 0.14504 ksi

Popular Pressure Converters:

bar to psipsi to barpsi to kpakpa to psi

How Bar Relates to Ksi

The Bar in Engineering

Bar (bar) is a unit of pressure measurement. 1 bar is equal to 0.0145038 ksi.

The Ksi in Engineering

Ksi (ksi) is a unit of pressure measurement. 1 ksi is equal to 68.9475729 bar.

Pressure Units Across Industries

Pressure measurements vary dramatically by industry. Meteorologists report in millibars or hectopascals, tire shops use PSI, scuba divers think in atmospheres or bar, vacuum engineers work in torr, and hydraulic systems specify in megapascals. A single industrial plant might encounter all these units across different equipment manuals, safety datasheets, and regulatory standards from different countries.

bar to ksi metric conversion table

0.01 bar=0.00015 ksi
0.1 bar=0.00145 ksi
1 bar=0.01450 ksi
2 bar=0.02901 ksi
3 bar=0.04351 ksi
4 bar=0.05802 ksi
5 bar=0.07252 ksi
6 bar=0.08702 ksi
7 bar=0.10153 ksi
8 bar=0.11603 ksi
9 bar=0.13053 ksi
10 bar=0.14504 ksi
11 bar=0.15954 ksi
12 bar=0.17405 ksi
13 bar=0.18855 ksi
14 bar=0.20305 ksi
15 bar=0.21756 ksi
16 bar=0.23206 ksi
17 bar=0.24656 ksi
18 bar=0.26107 ksi
19 bar=0.27557 ksi
20 bar=0.29008 ksi
30 bar=0.43511 ksi
40 bar=0.58015 ksi
50 bar=0.72519 ksi
60 bar=0.87023 ksi
70 bar=1.01526 ksi
80 bar=1.16030 ksi
90 bar=1.30534 ksi
100 bar=1.45038 ksi
200 bar=2.90075 ksi
300 bar=4.35113 ksi
400 bar=5.80151 ksi
500 bar=7.25189 ksi
600 bar=8.70226 ksi
700 bar=10.15264 ksi
800 bar=11.60302 ksi
900 bar=13.05340 ksi
1000 bar=14.50377 ksi

How to Convert Bar to Ksi?

We can convert bar to ksi by using an example.

Example:

Convert 20 Bar to Ksi?

We know 1 Bar = 0.0145038 ksi; 1 Ksi = 68.9475729 bar.

20 bar = ___ksi

20 × 0.0145038 = 0.29008 ksi (we know 1 bar = 0.0145038 ksi)

Answer:

20 bar = 0.29008 ksi

How to Convert Bar to ksi (Step-by-Step)

Converting bar to ksi (kilopounds per square inch = 1000 PSI) bridges European pressure measurements with American material testing specifications. The conversion factor is 1 bar = 0.0145038 ksi.

  1. Write down the pressure or stress value in bar.
  2. Multiply the bar value by 0.0145038.
  3. The result is the stress/pressure in ksi.
  4. Alternatively, convert bar to PSI first (×14.5038) then divide by 1000.
💡 Tip: For material strengths: to go from bar to ksi, divide by ~69. Mild steel at 2500 bar ÷ 69 ≈ 36 ksi yield strength.

Common Bar to ksi Conversions

Material strengths and bolt grades in both bar and ksi, essential for comparing European and US specifications.

BarKsi
690 bar10 ksi
1724 bar25 ksi
2482 bar36 ksi
3448 bar50 ksi
4137 bar60 ksi
6205 bar90 ksi
6895 bar100 ksi
10342 bar150 ksi

Solved Examples: Bar to ksi

Question 1: European steel specs list yield strength as 2500 bar. What is this in ksi for a US structural engineer?

Solution:

Stress in ksi = 2500 × 0.0145038

= 36.26 ksi

Answer: 2500 bar = 36.3 ksi — equivalent to ASTM A36 structural steel.

Question 2: A bolt specification shows proof load of 5860 bar. Convert to ksi to identify the SAE grade.

Solution:

Stress in ksi = 5860 × 0.0145038

= 85.0 ksi

Answer: 5860 bar = 85 ksi proof load — this matches SAE Grade 8 (minimum 120 ksi tensile).

Question 3: A titanium alloy has ultimate tensile strength of 9000 bar. Express in ksi.

Solution:

Stress in ksi = 9000 × 0.0145038

= 130.5 ksi

Answer: 9000 bar = 130.5 ksi — typical of Ti-6Al-4V aerospace alloy.

Practice Questions: Bar to ksi

Try solving these on your own to test your understanding:

  1. Convert 3000 bar to ksi. (Answer: 43.5 ksi)
  2. A wire rope has breaking strength of 12000 bar. Express in ksi. (Answer: 174.0 ksi)
  3. Convert 500 bar to ksi. (Answer: 7.25 ksi)
  4. An aluminum sheet has yield strength of 2000 bar. What is this in ksi? (Answer: 29.0 ksi)
  5. Convert 7000 bar to ksi. (Answer: 101.5 ksi)

Material Tensile Strength: European Bar vs. American ksi

US engineers specify metal strength in ksi (ASTM, SAE standards), while European standards (EN, DIN) often use MPa or N/mm². Bar appears in some European test reports and hydraulic equipment catalogs. Key equivalences: A36 structural steel = 36 ksi yield = 2482 bar = 248 MPa. AISI 4340 steel (heat treated) = 130 ksi yield = 8963 bar = 896 MPa. Knowing bar-to-ksi conversion prevents costly material substitution errors in international projects.

Bolt Grade Ratings: SAE vs. ISO Class

US bolt grades (SAE Grade 5, Grade 8) specify proof load in ksi, while ISO metric bolts (Class 8.8, 10.9, 12.9) use MPa. Quick references: Grade 5 = 85 ksi proof = ~5860 bar. Grade 8 = 120 ksi proof = ~8274 bar. ISO Class 8.8 = 600 MPa proof = 6000 bar = 87 ksi. ISO Class 10.9 = 830 MPa = 8300 bar = 120 ksi. These cross-references are essential when sourcing fasteners internationally.

When to Use ksi vs. MPa vs. Bar

Use ksi when working with US structural standards (AISC, ACI), SAE automotive specs, or ASME pressure vessel codes. Use MPa for international standards (ISO, Eurocode, AS). Bar appears mainly on pressure gauges, hydraulic catalogs, and some European test equipment readouts. Academic papers increasingly use MPa exclusively. In practice, structural engineers in the US think in ksi, while the rest of the world uses MPa.

Key Takeaways

  • 1 bar = 0.0145038 ksi (multiply bar by 0.0145 or divide by ~69).
  • 1 ksi = 1000 PSI = 68.95 bar = 6.895 MPa.
  • A36 structural steel: 36 ksi yield = 2482 bar.
  • Grade 8 bolts: 120 ksi tensile = ~8274 bar.
  • US standards use ksi (ASTM/SAE); international standards use MPa.
  • Bar-to-ksi conversion is essential for international material procurement.

Bar to Ksi Conversion Formula

ksi = bar × 0.0145038

1 bar = 0.0145038 ksi

1 ksi = 68.9475729 bar

Reverse: bar = ksi × 68.9475729

Frequently Asked Questions

How many ksi are in 1 bar?

There are 0.0145038 ksi in 1 bar. To convert bar to ksi, multiply the value by 0.0145038.

How do I convert bar to ksi?

Multiply your bar value by 0.0145038 to get the equivalent in ksi. For example, 5 bar = 5 × 0.0145038 = 0.07252 ksi.

How do I convert ksi to bar?

Multiply your ksi value by 68.9475729 to get the equivalent in bar. Alternatively, divide by 0.0145038.

What is 10 bar in ksi?

10 bar is equal to 0.14504 ksi.

What is 100 bar in ksi?

100 bar is equal to 1.45038 ksi.