Dictionary
Derived unit
A measurement unit for a derived quantity, formed as a product of powers of base units — the newton (kg·m·s⁻²) or the…
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26 results for “Derived unit”
Dictionary
Coherent derived unit
A derived unit that is a product of powers of base units with no numerical factor other than one — the newton is coherent in…
Documents
SP 811 — Guide for the Use of SI Units
SI COHERENT DERIVED UNITS WI TH SPECIAL NAMES AND SYMBOLS (Explanation of Graphic on Back Cover) Derived units are defined as products of powers…
Dictionary
Coherent system of units
A system of units in which every derived unit is coherent — the SI as used with its base and coherent derived units. VIM (JCGM…
Dictionary
Derived quantity
…VIM (JCGM 200:2012) 1.5 Standards & Units
Documents
SP 330 — International System of Units
…Examples of coherent derived units in the SI expressed in terms of base units Derived quantity Typical symbol of quantity Derived unit expressed in…
Dictionary
Unit equation
A mathematical relation between base and derived units — N = kg·m·s⁻². VIM (JCGM 200:2012) 1.23 Standards & Units
Dictionary
System of units
A set of base and derived units, with their multiples and submultiples, defined under given rules for a given system of quantities. VIM (JCGM…
The US edition of the SI Brochure reflecting the 2019 redefinition in which all seven base units derive from fixed defining constants. Freely available…
…the seven defining constants, base and derived units, prefixes and usage rules. Ninth edition with rolling updates (v4.01, 2026; the 2022 update added…