Dimensions

inches	-->	centimeters	x	2	.	54
centimeters	-->	inches	x	0	.	3937
feet	-->	meters	x	0	.	3048
meters	-->	feet	x	3	.	281
miles (nautical)	-->	kilometers	x	1	.	852
kilometers	-->	miles (nautical)	x	0	.	54

Volume

gallons (US)	-->	gallons (imp.)	x	0	.	83267
gallons (US)	-->	liters	x	3	.	785
liters	-->	gallons (US liq.)	x	0	.	2642

Weight

tons (long)	-->	kilograms	x	1016
kilograms	-->	tons (long)	x	9	.	842 E-04
kilograms	-->	tons (short)	x	1	.	102 E-03

Speed

knots	-->	kilometers/hour	x	1	.	852
kilometers/hour	-->	knots	x	0	.	5396
knots	-->	nautical miles/hour	x	1

Force

horsepower	-->	kilowatts	x	0	.	7457
kilometers/hour	-->	knots	x	1	.	341

Temperature

celsius°	-->	fahrenheit°	=	9/5		(C° + 32°)
fahrenheit°	-->	celsius°	=	5/9		(F° - 32°)

Electricity
60 Hz (USA Standards)
50 Hz (European Standards)

AC (Shore power, Generator, Inverter)	=	110/220/380 Volt
DC (Batteries)	=	12/24/32 Volt