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Convert Kilometers per Hour to Meters per Second - Speed Converter

This converter transforms speed measurements from Kilometers per Hour to Meters per Second, enabling translation of practical speeds to physics-based calculations.

Everyday speeds are naturally expressed in km/h, while physics equations use m/s. This conversion is essential for scientific analysis of motion.

This converter uses the precise relationship where 3.6 km/h equals exactly 1 m/s.

Updated Nov 24, 2025QA PASS — golden 25 / edge 120Run golden-edge-2026-01-23

Governance

Record 70da5794b3e5 • Reviewed by Fidamen Standards Committee

Interactive Converter

Convert between kilometers per hour and meter per second with precision rounding.

Quick reference table

Kilometers per HourMeter per Second
1 km/h0.28 m/s
5 km/h1.39 m/s
10 km/h2.78 m/s
25 km/h6.94 m/s
50 km/h13.89 m/s
100 km/h27.78 m/s

Methodology

3.6 km/h = 1 m/s. To convert km/h to m/s, divide by 3.6. For example, 36 km/h = 10 m/s, 72 km/h = 20 m/s, 90 km/h = 25 m/s.

Vehicle speeds measured in km/h must be converted to m/s for physics problem analysis. Understanding both units enables practical-to-scientific translation.

Impact calculations, projectile motion, and fluid dynamics all require speeds in m/s. Converting from km/h enables these calculations.

This converter provides precise speed conversions for physics, engineering, and scientific applications.

Worked examples

Example 1 – Car speed: 36 km/h = 10 m/s, typical local speed limit.

Example 2 – Highway speed: 100 km/h = 27.8 m/s, high-speed travel.

Example 3 – Wind speed: 45 km/h = 12.5 m/s, strong wind conditions.

F.A.Q.

What is the conversion from km/h to m/s?

Divide km/h by 3.6 to get m/s. Alternatively, multiply km/h by 0.2778.

Why convert speeds to m/s?

Physics equations use SI units (m/s). Converting enables proper calculation of forces, energy, and motion.

What are everyday speeds in m/s?

Walking: 1.4 m/s; Jogging: 3 m/s; Cycling: 6-8 m/s; Driving: 15-30 m/s.

Sources & citations

Further resources

Versioning & Change Control

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

Record ID: 70da5794b3e5

What changed (latest)

v1.0.0 • 2025-11-24 • 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 24, 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 • 2025-11-24 • 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: 86284e1dbfaf