The prefixes and symbols listed below are commonly used to form names and symbols of the decimal multiples and sub multiples of the SI units.

SYMBOLS
Multiplication Factor	Prefix	Symbol
1,000,000,000=109	giga	G
1,000,000=106	mega	M
1,000=103	kilo	k
100=102	hecto	h
1=1
0.01=10-2	centi	c
0.001=10-3	milli	m
0.000001=10-6	micro	μ
0.000000001=10-9	nano	n
0.000000000001=10-12	pico	p

TIME
Years	1	yr
Months	12	mo
Weeks	52	wk
Days	365	d
Hours	8760	h
Minutes	525600	min
Seconds	31536000	s
Kiloseconds	31.536	ks
Megaseconds	31.54	Ms
Milliseconds	31536000000000	ms
Nanoseconds	3.1536E+16	ns
Picoseconds	3.1536E+19	ps

PRESURE
Kilograms Force/mm2	1	kgf/mm2
Kilograms Force/cm2	100	kgf/cm2
Kilograms Force/m2	1000000	kgf/m2
Atmospheres	96.784110535208	atm
Bars	98.0664999998	bar
Millibars	98066.4999998	mbar
Microbars	98066500	mbar
Pascals	9806650	Pa
Kilopascals	9806.65	kPa
Torrs	73556.1272706	tor
Millimeters Mercury	73556.1272706	mmHg

POWER
Horsepowers	1341.022038	hp
Horsepowers, Metric	1359.621155	hp
Horsepowers, Water	1340.405312	hp
Calories (Therm)/Hour	14340344.85	cal/h
Kilocalories (Therm)/Second	239.0057361	kcal/s
Watts	1000000	W
Kilowatts	1000	kW
Megawatts	1	MW
Ergs/Second	10000000000000	erg/s
Horsepowers, Electric	1340.48	hp

 

TEMPERATUE EQUIVALENTS
Celsius Grades	20	°C
Fahrenheit Grades	68	°F
Kelvin	293.15	K
Fahrenheit to Celsius
Fahrenheit:
Celsius to Fahrenheit
Celsius: