Convert Bar to Megapascals
Instantly convert Bar (bar) to Megapascals (MPa) with our free online calculator.
Formula: bar to MPa — multiply by 0.1
Reference Table
| Bar (bar) | Megapascals (MPa) |
|---|---|
| 1 | 0.1 |
| 5 | 0.5 |
| 10 | 1 |
| 25 | 2.5 |
| 50 | 5 |
| 100 | 10 |
How to Convert Bar to Megapascals
Formula
To convert Bar (bar) to Megapascals (MPa): multiply by 0.1
Step-by-Step
- Start with your value in Bar (bar).
- Multiply by 0.1 to perform the conversion.
- The result is your value expressed in Megapascals (MPa).
Conversion Factor
1 bar = 0.1 MPa
Reverse Factor
1 MPa = 10 bar
Worked Example
Convert 25 Bar to Megapascals: 25 bar = 2.5 MPa
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.
About Megapascal (MPa)
A metric unit of pressure equal to exactly 1,000,000 pascals (1,000 kPa), or 10 bar. Megapascals are the universal SI unit for material strength reporting in structural and mechanical engineering: concrete compressive strength (typically 20-60 MPa per ACI 318 / Eurocode 2, with ultra-high-performance concrete reaching 150-200 MPa), structural-steel yield stress (250 MPa for S275 / A36, 355 MPa for S355, up to 690 MPa for HSLA grades), aluminum tensile (6061-T6 ~310 MPa), and the fracture toughness of ceramics and polymers reported as MPa·m^½ in materials databases. Mechanical-engineering finite-element solvers (Abaqus, ANSYS, Nastran), pressure-vessel codes (ASME BPVC Section VIII, PD 5500, EN 13445), hydraulic system specifications above ~70 bar, and the civil-engineering concrete mix specs all use MPa as the working pressure/stress unit. Common conversions: 1 MPa = 10 bar = 145.04 psi = 9.869 atm.
Quick Facts
- 1 Bar equals 0.1 Megapascals
- 1 Megapascal equals 10 Bar
- Bar is a unit of pressure
- Megapascal is a unit of pressure
- This conversion is commonly used in tire inflation, weather reporting, scuba diving, and engineering
- The Bar belongs to the metric system
Common Bar to Megapascal Conversions
| Bar (bar) | Megapascals (MPa) |
|---|---|
| 0.1 | 0.01 |
| 0.5 | 0.05 |
| 1 | 0.1 |
| 2 | 0.2 |
| 5 | 0.5 |
| 10 | 1 |
| 14.696 | 1.4696 |
| 15 | 1.5 |
| 20 | 2 |
| 25 | 2.5 |
| 50 | 5 |
| 100 | 10 |
| 150 | 15 |
| 200 | 20 |
| 500 | 50 |
| 1000 | 100 |
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.
Understanding Megapascals
The Megapascal (symbol: MPa) is a unit of pressure. A metric unit of pressure equal to exactly 1,000,000 pascals (1,000 kPa), or 10 bar. Megapascals are the universal SI unit for material strength reporting in structural and mechanical engineering: concrete compressive strength (typically 20-60 MPa per ACI 318 / Eurocode 2, with ultra-high-performance concrete reaching 150-200 MPa), structural-steel yield stress (250 MPa for S275 / A36, 355 MPa for S355, up to 690 MPa for HSLA grades), aluminum tensile (6061-T6 ~310 MPa), and the fracture toughness of ceramics and polymers reported as MPa·m^½ in materials databases. Mechanical-engineering finite-element solvers (Abaqus, ANSYS, Nastran), pressure-vessel codes (ASME BPVC Section VIII, PD 5500, EN 13445), hydraulic system specifications above ~70 bar, and the civil-engineering concrete mix specs all use MPa as the working pressure/stress unit. Common conversions: 1 MPa = 10 bar = 145.04 psi = 9.869 atm.
It belongs to the metric measurement system.
Megapascals are commonly used in tire inflation, weather reporting, scuba diving, and engineering.
Why Convert Bar to Megapascals?
Engineers, mechanics, and scientists frequently need to convert pressure between Bar and Megapascals 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 Bar to Megapascals?
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. To convert Bar to Megapascals, multiply by 0.1. For example, 25 bar equals 2.5 MPa.
How many Megapascals are in 1 Bar?
There are 0.1 Megapascals in 1 Bar.
How many Bar are in 1 Megapascal?
There are 10 Bar in 1 Megapascal.
What is the formula for Bar to Megapascal conversion?
The formula is: multiply by 0.1. This means 1 bar = 0.1 MPa.
Is a Bar bigger than a Megapascal?
Yes. One Bar is larger than one Megapascal because 1 bar equals 0.1 MPa, which is less than 1.
When do you need to convert between Bar and Megapascals?
A metric unit of pressure equal to exactly 1,000,000 pascals (1,000 kPa), or 10 bar. Bar and Megapascal 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.