Fidamen

Convert Kilopascals to PSI - Pressure Converter

This converter transforms a single numeric pressure expressed in kilopascals (kPa) into pounds per square inch (psi). The conversion is a fixed mathematical relationship between two units: the SI-derived kilopascal and the imperial-derived psi.

Use this tool for quick unit changes when reading gauges, specifying design pressures, or recording measurements for reports. For regulated or safety-critical work, review calibration, measurement uncertainty, and whether the pressure is gauge or absolute before relying on a converted value.

Results are presented as mathematical conversions only. They do not replace calibrated measurement devices, traceable calibration certificates, or compliance checks required by standards and regulators.

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

Governance

Record a1a837bd4986 • Reviewed by Fidamen Standards Committee

Interactive converter unavailable for this calculator.

We could not resolve compatible units for this experience. Please verify the slug follows the pattern `from-unit-to-unit-converter`.

Methodology

The converter uses the exact relationship between the units: 1 psi equals 6.894757293177... kilopascals. Conversion is performed with full double-precision and then rounded for display according to common engineering practice.

Be mindful of whether your original pressure is gauge (relative to ambient) or absolute (relative to vacuum); converting the number from kPa to psi does not change its reference. If you need absolute-to-gauge or gauge-to-absolute conversions, add or subtract local atmospheric pressure before or after unit conversion.

For safety-critical, legal, or compliance work consult applicable standards and calibration procedures. Calibration traceable to national metrology institutes and uncertainty statements are required by ISO/IEC 17025 and recommended by NIST guidance for measurement accuracy.

Key takeaways

Converting kPa to psi is a fixed arithmetic operation using the constant 6.894757293177 kPa per psi.

Always confirm gauge vs absolute reference and account for measurement uncertainty and calibration when conversions are used for engineering, safety, or compliance decisions.

Worked examples

100 kPa converts using 100 / 6.894757293177 = 14.5037738 psi (report as 14.504 psi for four significant digits)

101.325 kPa (standard atmospheric pressure) converts as 101.325 / 6.894757293177 = 14.6959488 psi (≈ 14.6959 psi)

220 kPa converts as 220 / 6.894757293177 = 31.9083024 psi (≈ 31.9083 psi)

F.A.Q.

Is this conversion affected by temperature or gas type?

The numeric relationship between kPa and psi is a unit conversion and is not directly affected by temperature or gas composition. However, measured pressure can change with temperature and fluid properties, so ensure the measured quantity is appropriate before converting units.

Should I convert gauge pressure or absolute pressure?

Convert whichever numeric value you have. If you need to compare or combine pressures, first ensure all values share the same reference (gauge or absolute). To convert from gauge to absolute, add local atmospheric pressure (for example, ≈101.325 kPa at sea level) before converting units.

How many decimal places should I report?

Report decimals based on the measurement instrument's uncertainty and the needs of the task. For many engineering tasks, three to four significant figures are common. For compliance or calibration records follow the precision specified in the relevant standard or procedure.

Can I rely on this converter for legal or safety-critical records?

This converter provides numeric unit conversions only. For legal, safety, or regulatory records, use measurements from calibrated instruments with traceable calibration certificates and include uncertainty statements per ISO/IEC 17025 and applicable regulatory requirements.

Where can I find authoritative guidance on units and measurement best practices?

Authoritative guidance includes national measurement institute publications and international standards such as NIST publications and ISO standards. For laboratory accreditation and calibration procedures consult ISO/IEC 17025 and related guidance documents.

Sources & citations

Further resources

Versioning & Change Control

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

Record ID: a1a837bd4986

What changed (latest)

v1.0.0 • 2025-11-23 • 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

UI

v1.0.0

Governance

Last updated: Nov 23, 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 • 2025-11-23 • 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: 34137f6d3801