Convert MPa to Bar

1 MPa equals 10 bar.

Formula: bar = MPa × 10

MPa to Bar Converter

What Is a MPa?

The megapascal (MPa) equals 1,000,000 pascals. It is used in structural engineering, materials science, and high-pressure industrial applications.

What Is a Bar?

The bar equals 100,000 pascals. It is the common metric pressure unit for everyday and industrial applications.

MPa to Bar Formula

The conversion formula is:

bar = MPa × 10

Exact: 1 MPa = 10 bar (both are multiples of the pascal).

Worked Example

Convert 0.8 MPa (0.8 MPa (hydraulic system pressure)):

Calculate: 0.8 → 8 bar

Common Use Cases

This conversion is needed regularly in:

Material science and strength testing: Tensile strength, yield strength, and Young's modulus of materials are reported in MPa in international standards. Engineers convert to bar when comparing with equipment pressure ratings, which are often given in bar.
High-pressure hydraulics: Hydraulic systems in heavy machinery, construction equipment, and industrial presses operate at pressures often specified in MPa (20–40 MPa). Service gauges may read in bar (200–400 bar), requiring conversion.
Concrete and structural engineering: Concrete compressive strength is specified in MPa (typical range: 20–50 MPa). When this must be compared with water or soil pressure data given in bar, the ×10 factor applies directly.
Oil and gas industry: Wellhead pressures and pipeline specifications are commonly given in MPa in international operations but bar in some European standards. A well at 35 MPa operates at 350 bar or about 5,076 psi.

Frequently Asked Questions

Why is 1 MPa exactly 10 bar?

Because both are metric units with a clean relationship: 1 MPa = 1,000,000 Pa, and 1 bar = 100,000 Pa. Dividing gives 1,000,000 / 100,000 = 10 bar per MPa. This exact decimal factor means there is never a rounding error in this conversion.

How do I convert MPa to psi?

Multiply MPa by 145.038. For example: 1 MPa = 145 psi, 10 MPa = 1,450 psi, 100 MPa = 14,504 psi. Alternatively, convert MPa to bar (×10) then bar to psi (×14.5): 1 MPa = 10 bar = 145 psi. Both methods give the same result.

When should I use MPa instead of bar?

Use MPa for high-pressure applications (above about 100 bar) and for strict SI compliance in scientific and engineering publications. Material properties, structural analysis, and geotechnical engineering commonly use MPa. Use bar for moderate pressures (1–100 bar) in industrial process control, compressed gas, and everyday applications.

What is the complete MPa to other units chain?

1 MPa = 10 bar = 1,000 kPa = 1,000,000 Pa = 145.038 psi = 9.8692 atm = 7,500.6 mmHg. These relationships form a complete conversion chain. The most useful to memorize: ×10 for bar, ×145 for psi, ≈10 for atm.

Common MPa to Bar Conversions

MPa to Bar (Part 1)

MPa	Bar	Actions
0.1 MPa	1 bar
12 MPa	5 bar
1 MPa	10 bar
2 MPa	20 bar

MPa to Bar (Part 2)

MPa	Bar	Actions
5 MPa	50 bar
10 MPa	100 bar
50 MPa	500 bar
100 MPa	1000 bar

MPa to bar Conversion Table

Reference table with common mpa to bar conversions. All values calculated with high precision.

MPa to Bar Table
0.0001 to 12

MPa	Bar	Actions
0.0001 MPa	0.001 bar
0.00025 MPa	0.0025 bar
0.0005 MPa	0.005 bar
0.001 MPa	0.01 bar
0.0025 MPa	0.025 bar
0.005 MPa	0.05 bar
0.01 MPa	0.1 bar
0.025 MPa	14 bar
0.05 MPa	12 bar
0.1 MPa	1 bar
14 MPa	2 12 bar
12 MPa	5 bar

MPa to Bar Table
1 to 100000

MPa	Bar	Actions
1 MPa	10 bar
2 12 MPa	25 bar
5 MPa	50 bar
10 MPa	100 bar
25 MPa	250 bar
50 MPa	500 bar
100 MPa	1000 bar
250 MPa	2500 bar
500 MPa	5000 bar
1000 MPa	10000 bar
2500 MPa	25000 bar
5000 MPa	50000 bar
10000 MPa	100000 bar
25000 MPa	250000 bar
50000 MPa	500000 bar
100000 MPa	1000000 bar

Bar to MPa Table
0.001 to 5

Bar	MPa	Actions
0.001 bar	0.0001 MPa
0.0025 bar	0.00025 MPa
0.005 bar	0.0005 MPa
0.01 bar	0.001 MPa
0.025 bar	0.0025 MPa
0.05 bar	0.005 MPa
0.1 bar	0.01 MPa
14 bar	0.025 MPa
12 bar	0.05 MPa
1 bar	0.1 MPa
2 12 bar	14 MPa
5 bar	12 MPa

Bar to MPa Table
10 to 1000000

Bar	MPa	Actions
10 bar	1 MPa
25 bar	2 12 MPa
50 bar	5 MPa
100 bar	10 MPa
250 bar	25 MPa
500 bar	50 MPa
1000 bar	100 MPa
2500 bar	250 MPa
5000 bar	500 MPa
10000 bar	1000 MPa
25000 bar	2500 MPa
50000 bar	5000 MPa
100000 bar	10000 MPa
250000 bar	25000 MPa
500000 bar	50000 MPa
1000000 bar	100000 MPa

Looking for the reverse? Convert Bar to MPa

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Conversion factors verified against NIST, BIPM, ISO 80000-4 1 atm = 101 325 Pa by definition (BIPM). Last reviewed: March 2026

By Adilson Fernandes

Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.