Metrics:

Metrics:

25.4 millimeter equals 1 inch.
2.54 centimeters equals 1 inch.
1 meter equals 39.37 inches.
1.6 kilometer equals 1 mile.
100 millimeter equals 1 centimeter
100 centimeter equals 1 meter
100 meter equals 1 kilometer

Approximate Conversions:

Inches	x	25=	Mm		Mm mm	x ÷	0.04= 25.4=	Inches Inches
Inches	x	2.5=	Cm		Cm Cm	x ÷	0.4= 2.54=	Inches Inches
Feet	x	30=	Cm		Meter	x	3.3=	Feet
Yards	x	0.9=	Meter		Meter	x	1.1=	Yards
Meter	x	1.6=	Kilometer		Kilometer Kilometer	x ÷	0.6= 1.6=	Miles Miles

Temperature
Celsius	Fahrenheit
-30	-22
-20	-4
-10	14
0	32
10	50
20	68
30	86
40	104
50	122

Temperature Formula:  °Fahrenheit - 32 x 0.56 = °Celsius

                                    °Celsius x 1.8 + 32 = °Fahrenheit

Liquid:
1 ounce = 29.57 milliliters
1 quart = 0.95 liter
1 gallon = 3.79 liters