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Measurements
UNITS OF MEASUREMENT
US standard units
Basic units are the foot (ft), pound (lb), and
second (sec).
Linear:
12 inches (in)
3 feet (ft)
5½ yards (yd)
22 yards (yd)
220 yards (yd)
1,760 yards (yd) |
= 1 foot (ft)
= 1 yard (yd)
= 1 pole
= 1 chain (= 4 poles)
= 1 furlong (= 10 chains)
= 1 mile (= 8 furlongs = 5,280 feet) |
Square:
144 square inches (sq in)
9 square feet (sq ft)
30G square yards (sq yd)
40 perches
4 roods
640 acres |
= 1 square foot (sq ft)
= 1 square yard (sq yd)
= 1 perch
= 1 rood
= 1 acre (= 4,840 sq yd)
= 1 square mile (sq mile) |
Volume:
1,728 cubic inches (cu in)
27 cubic feet (cu ft) |
= 1 cubic foot (cu ft)
= 1 cubic yard (cu yd) |
Capacity:
4 gills
2 pints
4 quarts
2 gallons
8 gallons
8 bushels
1 barrel (oil) |
= 1 pint (= 16 fluid ounces)
= 1 quart (= 32 fl oz)
= 1 gallon (= 128 fl oz)
= 1 peck
= 1 bushel (= 4 pecks)
= 1 quarter (= 64 gallons)
= 42 gallons |
LENGTH, AREA, VOLUME, WEIGHT, AND TEMPERATURE
Conversion factors
Standard to metric:
To
convert Multiply by
Length:
inches
inches
inches
feet
feet
yards
miles |
to millimeters
to centimeters
to meters
to centimeters
to meters
to meters
to kilometers |
25.4
2.54
0.254
30.48
0.3048
0.9144
1.6093 |
Area:
square inches
square feet
square yards
square miles
acres
acres |
to square centimeters
to square meters
to square meters
to square kilometers
to hectares
to square kilometers |
6.4516
0.0929
0.8361
2.5898
0.4047
0.00405 |
Volume:
cubic inches
cubic feet
cubic yards
cubic miles |
to cubic centimeters
to cubic meters
to cubic meters
to cubic kilometers |
16.3871
0.0283
0.7646
4.1682 |
Liquid:
fluid ounces
pints
pints
gallons |
to
milliliters
to milliliters
to liters
to liters |
28.5
473.00
0.473
3.785 |
Length:
millimeters
centimeters
meters
meters
meters
kilometers |
to inches
to inches
to inches
to feet
to yards
to miles |
0.03937
0.3937
39.37
3.2808
1.0936
0.6214 |
Area:
square centimeters
square meters
square meters
square kilometers
square kilometers
hectares |
to square inches
to square feet
to square yards
to square miles
to acres
to acres |
0.1552
10.7639
1.196
0.3860
247.10
2.4710 |
Volume:
cubic centimeters
cubic meters
cubic meters
cubic kilometers |
to cubic inches
to cubic feet
to cubic yards
to cubic miles |
0.0610
35.315
1.308
0.2399 |
Capacity:
milliliters
milliliters
liters
liters |
to fluid ounces
to pints
to pints
to gallons |
0.0352
0.002114
2.114
0.2642 |
Weight:
ounces
grams
pounds
kilograms |
to grams
to ounces
to kilograms
to pounds |
28.35
.035
.45
2.20 |
|
1 oz. = 28g / 1g = .04 oz. / 1 lb. =
.45kg / 1kg = 2.2 lb |
Temperature:
To convert F to C, subtract 32 and multiply
by 5/9 (.555)
To convert C to F, multiply by 1.8 and add 32 |
OTHER UNIT CONVERSIONS
To
convert Multiply by
acres
|
to
to
to
to
to |
hectares
square chains
square feet
square kilometers
square yards |
x 0.405
x 10
x 43,560
x 4.047 x 10 - 3
x 4840 |
– MATHEMATICAL FORMULAS –
To find the
CIRCUMFERENCE of a:
Circle––Multiply
the diameter by 3.14159265 (usually 3.1416).
To find the
AREA
of a:
Circle––Multiply
the square of the diameter by .785398 (usually
.7854).
Rectangle––Multiply
the length of the base by the height.
Sphere (surface)––Multiply
the square of the radius by 3.1416 and multiply
by 4.
Square––Square
the length of one side.
Trapezoid––Add
the length of the 2 parallel sides, multiply by
the height and divide by 2.
Triangle––Multiply
the length of the base by the height and divide
by 2.
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