FFF system
Sign in to savesystem of units based on the furlong (length), the firkin (mass), and the fortnight (time)
Connections
International System of Units
Entity
conversion of units
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imperial system of units
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British thermal unit (thermochemical)
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operating system
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metre
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second
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mass
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International Standard Book Number
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kilogram
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minute
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velocity
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speed of light in vacuum
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volume
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weight
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joule
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centimetre
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digital object identifier
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degree Fahrenheit
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metric system
Entity