measurement unit obtained by multiplying a given measurement unit by an integer greater than one

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EXAMPLE 1 The kilometre is a decimal multiple of the metre.

EXAMPLE 2 The hour is a non-decimal multiple of the second.

NOTE 1 SI prefixes for decimal multiples of SI base units and SI derived units are given in Note 5 of 1.16.

NOTE 2 SI prefixes refer strictly to powers of 10, and should not be used for powers of 2. For example, 1 kilobit should not be used to represent 1 024 bits (2¹⁰ bits), which is 1 kibibit.

Prefixes for binary multiples are:

Factor Facteur	Prefix Préfixe
Factor Facteur	Name Nom	Symbol Symbole
(2¹⁰)⁸	yobi yobi	Yi
(2¹⁰)⁷	zebi zébi	Zi
(2¹⁰)⁶	exbi exbi	Ei
(2¹⁰)⁵	pebi pébi	Pi
(2¹⁰)⁴	tebi tébi	Ti
(2¹⁰)³	gibi gibi	Gi
(2¹⁰)²	mebi mébi	Mi
(2¹⁰)¹	kibi kibi	Ki

Source: IEC 80000-13.

[VIM3] 1.17 multiple of a unit

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Contents

Contents

1 Quantities and units click to expand contents

2 Measurement click to expand contents

3 Devices for measurement click to expand contents

4 Properties of measuring devices click to expand contents

5 Measurement standards (Etalons) click to expand contents

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