Bar to Kilopascals (bar to kPa)

Formula

1 bar = 100 kPa

kilopascals = bar × 100 — reverse: bar = kilopascals × 0.01

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 bar = 500 kPa
• 12.5 bar = 1250 kPa
• 100 bar = 10000 kPa

Bar to kilopascals conversion table

FAQ

How many kilopascals are in one bar?

1 bar = 100 kPa. 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 bar to kilopascals?

Multiply the value in bar by 100: kilopascals = bar × 100. For example, 5 bar = 500 kPa.

How do I convert kilopascals back to bar?

Multiply by the inverse factor 0.01 (bar = kilopascals × 0.01), or use the kilopascals-to-bar page.

Related conversions

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

Machine access

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

Sources

• NIST Special Publication 811 – Guide for the Use of the International System of Units (SI), Appendix B conversion factors (standard)
• BIPM – The International System of Units (SI Brochure, 9th edition) (standard)
• Wikipedia – Conversion of units (reference)