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General

Unit types

TypeSymbolNumeric ID
Feetft0
Inchesin1
Milesmi2
Millimetersmm3
Centimeterscm4
Metersm5
Kilometerskm6
Kilometers per hourkm/h7
Knotskts8
Miles per hourmi/h9
Meters per secondm/s10
HectoPascalshPa11
Inches of mercuryinHg12
KiloPascalskPa13
Millibarsmb14
Millimeters of mercurymmHg15
Pounds per square inchlbs/in²16
CelsiusC17
FahrenheitF18
KelvinK19
Percent%20
Float21
Integer22
Body/duration magnitudeMb23
Energy magnitudeMe24
Local magnitudeMl25
Moment magnitudeMi26
Nuttli surface wave magnitudeMbLg27
Moment magnitudeMw28
Surface wave magnitudeMs29
Teleseismic moment magnitudeMt30
Micrograms per cubic meter of airµg/m³31
Watt hours per square meterWh/m²32
Watts per square meterW/m²33
BTU per hour per square footBTU/hr/ft²34
Cubic meters per cubic meterm³/m³35
Cubic feet per cubic footft³/ft³36
Last modified on September 30, 2026
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