Convert Kilopascals to Megapascals - Pressure Converter

This converter transforms a single pressure value from kilopascals (kPa) to megapascals (MPa) using the exact SI relationship: 1 kPa = 0.001 MPa. It is intended for quick unit conversion for engineering, lab records, documentation, and calculations that use SI pressure units.

Use the tool when you need a reliable numeric conversion between these two SI units. For measurement-critical work, confirm that your pressure instrument is calibrated and that the conversion precision aligns with measurement uncertainty and regulatory requirements.

Updated Nov 11, 2025QA PASS — golden 25 / edge 120Run golden-edge-2026-01-23

Governance

Record 3cd3327dbbd4 • Reviewed by Fidamen Standards Committee

Interactive Converter

Convert between kilopascal and megapascal with precision rounding.

Kilopascal (kPa)Megapascal (MPa)

Quick reference table

Kilopascal	Megapascal
KPA 1.00 kPa	MPA 0.00 MPa
KPA 5.00 kPa	MPA 0.01 MPa
KPA 10.00 kPa	MPA 0.01 MPa
KPA 25.00 kPa	MPA 0.03 MPa
KPA 50.00 kPa	MPA 0.05 MPa
KPA 100.00 kPa	MPA 0.10 MPa

Methodology

The conversion uses the fixed SI scale factor between the two units: 1 kilopascal equals 0.001 megapascals. No temperature, material, or additional physical properties affect the unit conversion because both units measure the same physical dimension (pressure).

Recommendations for high-trust results: keep track of instrument calibration certificates (traceable to national standards), round results according to significant-figure rules appropriate for your measurement uncertainty, and document any conversion in reports to comply with audit or regulatory traceability.

Worked examples

1000 kPa → 1.0 MPa

250 kPa → 0.25 MPa

101.325 kPa (standard atmospheric pressure) → 0.101325 MPa

F.A.Q.

Is any temperature or gas type needed for this conversion?

No. This is a pure units conversion between two SI pressure units. Temperature, gas composition, and other physical conditions do not change the mathematical relationship between kPa and MPa.

How many significant figures should I keep?

Keep significant figures consistent with your measurement uncertainty and instrument specification. For display, use the same number of significant digits as the input or round according to the uncertainty interval; avoid presenting more precision than your measurement supports.

Does the converter account for instrument calibration or traceability?

No. The converter performs only the unit conversion. For calibrated measurements and regulatory compliance, ensure instruments are calibrated to national standards and retain calibration records as required by your procedures or applicable regulations.

What level of accuracy can I expect from this mathematical conversion?

The numerical relationship is exact (1 kPa = 0.001 MPa). Any loss of accuracy arises from numeric rounding in displays or from the precision of the input value. When reporting, include measurement uncertainty separately.

Sources & citations

NIST Special Publication 811, Guide for the Use of the International System of Units (SI) — https://www.nist.gov/pml/special-publication-811
ISO 80000-1 Quantities and units — Part 1: General — https://www.iso.org/standard/30669.html
OSHA — U.S. Occupational Safety and Health Administration (regulatory guidance and standards) — https://www.osha.gov
IEEE Standards Association — standards and publications — https://standards.ieee.org

Further resources

Related tools

External guidance

Versioning & Change Control

Audit record (versions, QA runs, reviewer sign-off, and evidence).

Record ID: 3cd3327dbbd4

What changed (latest)

v1.0.0 • 2025-11-11 • MINOR

Initial publication and governance baseline.

Why: Published with reviewed formulas, unit definitions, and UX controls.

Public QA status

PASS — golden 25 + edge 120

Last run: 2026-01-23 • Run: golden-edge-2026-01-23

Engine

v1.0.0

Data

Baseline (no external datasets)

Content

v1.0.0

Governance

Last updated: Nov 11, 2025

Reviewed by: Fidamen Standards Committee (Review board)

Credentials: Internal QA

Risk level: low

Reviewer profile (entity)

Fidamen Standards Committee

Review board

Internal QA

Entity ID: https://fidamen.com/reviewers/fidamen-standards-committee#person

Semantic versioning

MAJOR: Calculation outputs can change for the same inputs (formula, rounding policy, assumptions).
MINOR: New features or fields that do not change existing outputs for the same inputs.
PATCH: Bug fixes, copy edits, or accessibility changes that do not change intended outputs except for previously incorrect cases.

Review protocol

Verify formulas and unit definitions against primary standards or datasets.
Run golden-case regression suite and edge-case suite.
Record reviewer sign-off with credentials and scope.
Document assumptions, limitations, and jurisdiction applicability.

Assumptions & limitations

Uses exact unit definitions from the Fidamen conversion library.
Internal calculations use double precision; display rounding follows the unit's configured decimal places.
Not a substitute for calibrated instruments in regulated contexts.
Jurisdiction-specific rules may require official guidance.

Change log

v1.0.0 • 2025-11-11 • MINOR

Initial publication and governance baseline.

Why: Published with reviewed formulas, unit definitions, and UX controls.

Areas: engine, content, ui • Reviewer: Fidamen Standards Committee • Entry ID: cc8d790b394a