Fidamen

Convert Megahertz to Kilohertz - Frequency Converter

This converter transforms frequency values expressed in megahertz (MHz) into kilohertz (kHz) using the SI prefix relationship. The mathematical relationship is fixed: prefixes 'mega' and 'kilo' map to powers of ten, so the conversion is deterministic and exact in arithmetic.

Use this tool for quick unit conversions in engineering, RF design, test reports, documentation, and when preparing measurements for calibration or regulatory submissions. For measured frequencies, remember that the numeric conversion does not change measurement uncertainty or instrument resolution.

Where applicable, consult calibration and measurement standards (for example NIST guidance and ISO 17025 for calibration laboratories) to understand how instrument accuracy and traceability affect reported frequency values.

Updated Nov 18, 2025QA PASS — golden 25 / edge 120Run golden-edge-2026-01-23

Governance

Record aafc0e6e0667 • Reviewed by Fidamen Standards Committee

Interactive Converter

Convert between megahertz and kilohertz with precision rounding.

Quick reference table

MegahertzKilohertz
MHZ 1.00 MHzKHZ 1,000.00 kHz
MHZ 5.00 MHzKHZ 5,000.00 kHz
MHZ 10.00 MHzKHZ 10,000.00 kHz
MHZ 25.00 MHzKHZ 25,000.00 kHz
MHZ 50.00 MHzKHZ 50,000.00 kHz
MHZ 100.00 MHzKHZ 100,000.00 kHz

Methodology

SI prefix rule: 'mega' (M) = 10^6, 'kilo' (k) = 10^3, so 1 MHz = 10^6 Hz and 1 kHz = 10^3 Hz. Converting between MHz and kHz therefore uses a fixed factor of 1,000.

Arithmetic applied by this converter: multiply the value in MHz by 1,000 to obtain kHz. No intermediate physical measurements are performed by the tool; it performs an exact numeric scaling.

When converting measured values, preserve and report instrument resolution and uncertainty. Rounding should reflect the significant digits justified by the measurement equipment and calibration certificates rather than arbitrary display precision.

Worked examples

0.001 MHz → 1.0 kHz (0.001 × 1,000 = 1)

2.5 MHz → 2,500 kHz (2.5 × 1,000 = 2,500)

150 MHz → 150,000 kHz (150 × 1,000 = 150,000)

F.A.Q.

How do I convert megahertz to kilohertz?

Multiply the MHz value by 1,000. Example: 3.2 MHz × 1,000 = 3,200 kHz.

Is the conversion exact or approximate?

The arithmetic conversion between MHz and kHz is exact based on SI prefixes (1 MHz = 1,000 kHz). Any approximation comes from numeric rounding or from uncertainty in measured input values, not from the unit conversion itself.

How many significant digits should I report after conversion?

Match the significant digits to the measurement instrument's resolution and the uncertainty reported on the calibration certificate (ISO/IEC 17025 guidance). For calculated values not derived from measurement, choose precision appropriate for the application.

Does this converter account for measurement instrument limits or calibration?

No. This tool performs a mathematical unit conversion only. For measurement limits, traceability, and uncertainty you should consult instrument specifications and calibration documentation; NIST and ISO 17025 describe best practices for calibration and reporting.

Can I convert back from kilohertz to megahertz?

Yes. Divide the kHz value by 1,000 to get MHz. Example: 5,000 kHz ÷ 1,000 = 5 MHz.

Are MHz and kHz SI units?

Hertz (Hz) is the SI derived unit for frequency. MHz and kHz are SI-consistent prefixed forms of hertz (10^6 and 10^3 times a hertz, respectively).

Are there regulatory considerations for frequency values?

Yes. Frequency use and allocations are regulated by national authorities (for example, the FCC in the United States) and international coordination bodies. Unit conversion does not change regulatory classification—verify band allocations and licensing requirements with the appropriate authority.

Sources & citations

Further resources

Versioning & Change Control

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

Record ID: aafc0e6e0667

What changed (latest)

v1.0.0 • 2025-11-18 • 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 18, 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 • 2025-11-18 • 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: 44f9ec47d2dc