Decimal marker and spaces between groups of numerals

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Decimal marker and spaces between groups of numerals


A decimal marker is used to separate the integral part of numbers from the decimal part. The SI recommends: "the symbol for the decimal marker shall be either the point on the line or the comma on the line". In English language versions, the dot (point on the line) should be used uniquely as the decimal marker. To avoid ambiguities, BEC follows the SI recommendation that β€œNumbers may be divided in groups of three in order to facilitate reading; neither dots nor commas are ever inserted in the spaces between groups” (pages 183-184).

Abbreviation: .

Reference: Bureau International des Poids et Mesures 2019 The International System of Units (SI)


12 345.678 β€” but neither 12,345.678 nor 12.345,678
10 000.00 β€” but neither 10,000.00 nor 10.000,00

MitoPedia topics: BEC 

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