Convert Millimeters to Centimeters – Length Converter
This converter transforms measurements from Millimeters to Centimeters, enabling practical length interpretation.
Technical specifications in millimeters often need conversion to centimeters for practical understanding.
This converter uses the standard relationship where 1 centimeter equals exactly 10 millimeters.
Governance
Record e15c5a60e9fb • Reviewed by Fidamen Standards Committee
Interactive Converter
Convert between millimeter and centimeter with precision rounding.
Quick reference table
| Millimeter | Centimeter |
|---|---|
| 1 mm | 0.1 cm |
| 5 mm | 0.5 cm |
| 10 mm | 1 cm |
| 25 mm | 2.5 cm |
| 50 mm | 5 cm |
| 100 mm | 10 cm |
Methodology
1 cm = 10 mm. To convert millimeters to centimeters, divide by 10. For example, 10 mm = 1 cm, 50 mm = 5 cm.
Manufacturing drawings use millimeters while product specifications often use centimeters. Converting enables proper interpretation.
Understanding both metric scales is essential for reading technical documentation.
This converter provides precise length conversions for technical applications.
Worked examples
Example 1 U+2013 Hardware spec: A bolt 25 mm long equals 2.5 cm.
Example 2 U+2013 Tolerance spec: A 0.5 mm tolerance equals 0.05 cm.
Example 3 U+2013 Measurement: A 100 mm object is 10 cm long.
F.A.Q.
What is the conversion from Millimeters to Centimeters?
1 cm = 10 mm. Divide millimeters by 10 to get centimeters.
Why use millimeters for technical work?
Millimeters provide precision without decimals, reducing errors in technical specifications.
How many centimeters in a millimeter?
1 mm = 0.1 cm. 10 mm = 1 cm.
Sources & citations
- ISO Metric System — https://www.iso.org/
- Engineering Standards — https://www.asme.org/
- ISO 80000-3:2019 — Space and time — https://www.iso.org/standard/64974.html
- NIST SP 811 — Guide for the Use of the International System of Units — https://www.nist.gov/pml/special-publication-811
- BIPM SI Brochure (9th edition, 2019) — https://www.bipm.org/en/publications/si-brochure
Further resources
Versioning & Change Control
Audit record (versions, QA runs, reviewer sign-off, and evidence).
Record ID: e15c5a60e9fbWhat changed (latest)
v1.0.0 • 2025-11-30 • 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
Versioning & Change Control
Audit record (versions, QA runs, reviewer sign-off, and evidence).
What changed (latest)
v1.0.0 • 2025-11-30 • 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 30, 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 • 2025-11-30 • 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: 8fea7e92b694