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Megapascals to Bar (MPa to bar)

Convert megapascals to bar: 1 MPa = 10 bar. Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.

Formula

1 MPa = 10 bar

bar = megapascals × 10 — reverse: megapascals = bar × 0.1

The factor is derived from the SI definitions of both units (base unit: Pa) as listed in NIST SP 811; results on this page are shown to 6 significant figures, the API returns up to 12.

Worked examples

5 MPa = 50 bar
12.5 MPa = 125 bar
100 MPa = 1000 bar

Megapascals to bar conversion table

Megapascals (MPa)	Bar (bar)
1	10
2	20
3	30
4	40
5	50
6	60
7	70
8	80
9	90
10	100
15	150
20	200
25	250
30	300
40	400
50	500
75	750
100	1000
200	2000
250	2500
500	5000
1000	10000

FAQ

How many bar are in one megapascal?

1 MPa = 10 bar. The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures.

What is the formula to convert megapascals to bar?

Multiply the value in megapascals by 10: bar = megapascals × 10. For example, 5 MPa = 50 bar.

How do I convert bar back to megapascals?

Multiply by the inverse factor 0.1 (megapascals = bar × 0.1), or use the bar-to-megapascals page.

Related conversions

Bar to megapascals (reverse)
Pressure Converter — all pressure units in one tool
Psi to Bar
Bar to Psi
Psi to Kilopascals
Kilopascals to Psi
Bar to Kilopascals
Kilopascals to Bar
Atmospheres to Pascals
Pascals to Atmospheres

Machine access

API: GET https://tttkmbb.com/api/v1/convert?value=5&from_unit=MPa&to_unit=bar
MCP: server https://tttkmbb.com/mcp, tool convert_units with {"value":5,"from_unit":"MPa","to_unit":"bar"}
Markdown: https://tttkmbb.com/conversion/mpa-to-bar.md · JSON: https://tttkmbb.com/conversion/mpa-to-bar.json (add ?value= for a result) · Units: /api/v1/units?quantity=pressure
OpenAPI operationId: convert_units. Freshness: static. Authentication: none.