Fidamen

Convert Pascals to Torr - Pressure Converter

This converter transforms a single pressure value in kilopascals (kPa) into torr. The conversion is a fixed, mathematical relationship based on the internationally accepted definitions of the pascal, the standard atmosphere, and the torr.

Use this tool for quick unit changes, engineering notes, lab records, and reporting. For regulatory measurements, instrument selection and calibration traceability are essential to ensure values are suitable for compliance or scientific work.

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

Governance

Record 62f68620181f • Reviewed by Fidamen Standards Committee

Interactive Converter

Convert between kilopascal and torr with precision rounding.

Quick reference table

KilopascalTorr
KPA 1.00 kPa7.5006 Torr
KPA 5.00 kPa37.5032 Torr
KPA 10.00 kPa75.0064 Torr
KPA 25.00 kPa187.5159 Torr
KPA 50.00 kPa375.0319 Torr
KPA 100.00 kPa750.0638 Torr

Methodology

The torr is defined as 1/760 of the standard atmosphere. The pascal is the SI unit of pressure, defined as one newton per square meter. A standard atmosphere is exactly 101325 pascals. The conversion therefore uses the exact relationships between these definitions to compute a deterministic factor.

Accuracy in practice depends on the quality of the measurement instrument and on environmental factors such as temperature. For compliance, follow applicable standards and maintain calibration traceability to national metrology institutes. Relevant guidance can be found from NIST, ISO, IEEE, and occupational safety agencies.

Key takeaways

This converter provides a deterministic conversion from kilopascals to torr using internationally accepted unit definitions.

For reporting and regulatory use, include instrument uncertainty and calibration traceability and consult the cited standards bodies for best practices.

Worked examples

1 kPa → 7.500616827 Torr (rounded: 7.50062 Torr)

101.325 kPa → 760 Torr (standard atmosphere: exact by definition of Torr and atm)

0.5 kPa → 3.7503084135 Torr (rounded: 3.75031 Torr)

F.A.Q.

Is the conversion exact or approximate?

The mathematical relationship between the defined units is exact given the accepted constants (1 atm = 101325 Pa and 1 Torr = 1/760 atm). Practical measurement uncertainty depends on instrument accuracy, calibration, temperature, and procedure.

Why do I sometimes see slightly different numeric factors?

Differences come from rounding and how many significant digits are used. Use more digits for high-precision work. For traceable measurements, report the measured value with its uncertainty and reference the calibration standard.

What measurement uncertainty should I report?

Report uncertainty consistent with your instrument's calibration certificate and the applicable standard. Typical laboratory gauges may have uncertainties from a fraction of a percent to several percent; vacuum instruments and transducers vary widely.

Do environmental conditions affect conversions?

The unit conversion itself does not depend on environment, but readings from sensors do. Temperature, humidity, and local gravity anomalies can affect certain pressure measurement methods; consult instrument docs and calibration labs for correction factors.

Which standards should I consult for calibration and measurement best practice?

Consult national metrology guidance for traceability, ISO standards for calibration systems, IEEE documents for instrumentation practice where applicable, and occupational safety standards for workplace requirements. Always follow the specific standard quoted in your regulatory context.

Sources & citations

Further resources

External guidance

Versioning & Change Control

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

Record ID: 62f68620181f

What changed (latest)

v1.0.0 • 2025-11-25 • 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 25, 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 • 2025-11-25 • 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: 0ab4f206e75e