Monday, January 25, 2010

Calculate the speed / velocity conversion


For the number:
(Use decimal numbers, not fractions.)


From:
per


To
per  

Number of decimal places in answer:




NOTE: Knots are Miles (nautical) per hour


Need help with conversion? - See FAQS

at 6:56 AM 0 comments
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FAQS

Q. The conversions do not work! When I click the "Convert Now" button, nothing happens.
A. The conversions will not work until the page has finished loading. Sometimes the banner ads take a few extra seconds to load. When that happens, click the "Stop" button in the toolbar and try the conversion again. You can also try the "Refresh" or "Reload" button, depending on which browser you use. (Yes, we know how most of you feel about banner ads, but the ads pay for the site so you can continue to use it for free.)


Q. I got an answer that looks like this: 2.64e+06    Or like this: 5.3e-08   What does that mean?
A. The "e" stand for exponent. So 2.64e+06 is the computer program's way of saying 2.64 x 10 raised to the 6th power, or 2,640,000. If your result was 5.3e-08, then the answer would have been 5.3 x 10 raised to the negative 8th power, or 0.000000053
Basically, the exponent tells you how many places to move the decimal point. This way of expressing large numbers as powers of 10 is called "scientific notation." For more information, visit New York University's page on scientific notation.
at 6:51 AM 0 comments
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Calculate the area conversion

For the number:
(Use decimal numbers, not fractions.)

From:

To:

Number of decimal places in answer:


Questions about the conversions? - See FAQS
at 6:42 AM 0 comments
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Fractions and Decimals Conversion Chart
Note: decimals marked with * are NOT EXACT
and have been rounded to 6 decimal places
1/2
 =
0.5
1/3
 =
0.333333 *
2/3
 =
0.666667 *
1/4
 =
0.25
2/4
 =
0.5
3/4
 =
0.75
1/5
 =
0.2
2/5
 =
0.4
3/5
 =
0.6
4/5
 =
0.8
1/6
 =
0.166667 *
2/6
 =
0.333333 *
3/6
 =
0.5
4/6
 =
0.666667 *
5/6
 =
0.833333 *
1/7
 =
0.142857 *
2/7
 =
0.285714 *
3/7
 =
0.428571 *
4/7
 =
0.571428 *
5/7
 =
0.714285 *
6/7
 =
0.857143 *
1/8
 =
0.125
2/8
 =
0.25
3/8
 =
0.375
4/8
 =
0.5
5/8
 =
0.625
6/8
 =
0.75
7/8
 =
0.875
1/9
 =
0.111111 *
2/9
 =
0.222222 *
3/9
 =
0.333333 *
4/9
 =
0.444444 *
5/9
 =
0.555555 *
6/9
 =
0.666667 *
7/9
 =
0.777778 *
8/9
 =
0.888889 *
1/10
 =
0.1
2/10
 =
0.2
3/10
 =
0.3
4/10
 =
0.4
5/10
 =
0.5
6/10
 =
0.6
7/10
 =
0.7
8/10
 =
0.8
9/10
 =
0.9
1/11
 =
0.090909 *
2/11
 =
0.181818 *
3/11
 =
0.272727 *
4/11
 =
0.363636 *
5/11
 =
0.454545 *
6/11
 =
0.545454 *
7/11
 =
0.636364 *
8/11
 =
0.727273 *
9/11
 =
0.818182 *
10/11
 =
0.909091 *
1/12
 =
0.083333 *
2/12
 =
0.166667 *
3/12
 =
0.25
4/12
 =
0.333333 *
5/12
 =
0.416667 *
6/12
 =
0.5
7/12
 =
0.583333 *
8/12
 =
0.666667 *
9/12
 =
0.75
10/12
 =
0.833333 *
11/12
 =
0.916667 *
1/16
 =
0.0625
2/16
 =
0.125
3/16
 =
0.1875
4/16
 =
0.25
5/16
 =
0.3125
6/16
 =
0.375
7/16
 =
0.4375
8/16
 =
0.5
9/16
 =
0.5625
10/16
 =
0.625
11/16
 =
0.6875
12/16
 =
0.75
13/16
 =
0.8125
14/16
 =
0.875
15/16
 =
0.9375
1/32
 =
0.03125
2/32
 =
0.0625
3/32
 =
0.09375
4/32
 =
0.125
5/32
 =
0.15625
6/32
 =
0.1875
7/32
 =
0.21875
8/32
 =
0.25
9/32
 =
0.28125
10/32
 =
0.3125
11/32
 =
0.34375
12/32
 =
0.375
13/32
 =
0.40625
14/32
 =
0.4375
15/32
 =
0.46875
16/32
 =
0.5
17/32
 =
0.53125
18/32
 =
0.5625
19/32
 =
0.59375
20/32
 =
0.625
21/32
 =
0.65625
22/32
 =
0.6875
23/32
 =
0.71875
24/32
 =
0.75
25/32
 =
0.78125
26/32
 =
0.8125
27/32
 =
0.84375
28/32
 =
0.875
29/32
 =
0.90625
30/32
 =
0.9375
31/32
 =
0.96875
Note: decimals marked with * are NOT EXACT
and have been rounded to 6 decimal places
at 6:39 AM 0 comments
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FAQS
Q. The result of my conversion says that 1 gram is equal to 0.00 kilograms (or some amount of one unit equals 0.00 of a different unit). Why?
A. Because of "rounding". You can choose the number of decimal places shown in your answer. The default is set for 2 decimal places. If you do the conversion again with 4 decimal places, you would get the result: 1 gram = 0.0010 kilograms.


Q. Which weight measurement do I use: troy, apothecary or avoirdupois?
A. Troy measurements are generally used for precious metals. Apothecary measurements are used for medications. Avoirdupois measurements are used for almost everything else - they are our "every day" units.


Q. The conversions do not work! When I click the "Convert Now" button, nothing happens.
A. The conversions will not work until the page has finished loading. Sometimes the banner ads take a few extra seconds to load. When that happens, click the "Stop" button in the toolbar and try the conversion again. You can also try the "Refresh" or "Reload" button, depending on which browser you use. (Yes, we know how most of you feel about banner ads, but the ads pay for the site so you can continue to use it for free.)


Q. I got an answer that looks like this: 2.64e+06    Or like this: 5.3e-08   What does that mean?
A. The "e" stand for exponent. So 2.64e+06 is the computer program's way of saying 2.64 x 10 raised to the 6th power, or 2,640,000. If your result was 5.3e-08, then the answer would have been 5.3 x 10 raised to the negative 8th power, or 0.000000053
Basically, the exponent tells you how many places to move the decimal point. This way of expressing large numbers as powers of 10 is called "scientific notation." For more information, visit New York University's page on scientific notation.


Q. Where can I learn more about solving everyday math problems?
A. We recommend the following books:
Everyday Math for Everyday Life:
A Handbook For When It Just Doesn't Add Up


 

cover

coverAll the Math You'll Ever Need:
A Self-Teaching Guide





Family Math
Help your children learn math at home with over
300 pages of interesting games, puzzles and projects. 
at 6:34 AM 0 comments
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Metric conversion chart

This metric conversion table contains
APPROXIMATE factors. Most are NOT EXACT






APPROXIMATE CONVERSIONS
FROM
STANDARD / US CUSTOMARY UNITS
TO
SI / METRIC UNITS

(Scroll down for conversions from metric to standard measurements)
SYMBOL
WHEN YOU KNOW
MULTIPLY BY
TO FIND
SYMBOL


LENGTH
in
 inches
 25.4
 millimeters
 mm
ft
 feet
 0.305
 meters
 m
yd
 yards
 0.914
 meters
 m
mi
 miles
 1.61
 kilometers
 km

AREA
in2
 square inches
 645.2
 square millimeters
 mm2
ft2
 square feet
 0.093
 square meters
 m2
yd2
 square yard
 0.836
 square meters
 m2
ac
 acres
 0.405
 hectares
 ha
mi2
 square miles
 2.59
 square kilometers
 km2

VOLUME

fl oz
 fluid ounces
 29.57
 milliliters
 mL
gal
 gallons
 3.785
 liters
 L
ft3
 cubic
feet
 0.028
 cubic
meters
m3

yd3
 cubic
yards
 0.765
 cubic
meters
m3


MASS
oz
 ounces
 28.35
 grams
 g
lb
 pounds
 0.454
 kilograms
 kg
T
 short tons (2000 lb)
 0.907
 megagrams (or "metric ton")
 Mg (or
"t")
TEMPERATURE

oF
Fahrenheit
(F-32) x 5 / 9

or
(F-32) / 1.8
Celsius
oC

ILLUMINATION
fc
foot-candles
 10.76
 lux
 lx
fl
foot-Lamberts
 3.426

candela/m2
cd/m2

FORCE and PRESSURE or STRESS

lbf
poundforce
 4.45

newtons
 N

lbf/in2
 poundforce
per square inch
 6.89
kilopascals
 kPa






APPROXIMATE CONVERSIONS
FROM
SI / METRIC UNITS
TO
STANDARD / US CUSTOMARY UNITS

SYMBOL
 WHEN YOU KNOW
 MULTIPLY BY
 TO FIND
 SYMBOL

LENGTH
mm
 millimeters
 0.039
 inches
 in
m
 meters
 3.28
 feet
 ft
m
 meters
 1.09
 yards
 yd
km
 kilometers
 0.621
 miles
 mi
AREA
mm2
 millimeters
 0.0016
 square inches
 in2
m2
 square meters
 10.764
 square feet
 ft2
m2
 square meters
 1.195
 square yards
 yd2
ha
 hectares
 2.47
 acres
 ac
km2
 square kilometers
 0.386
 square miles
 mi2

VOLUME

mL
 milliliters
 0.034
 fluid ounces
 fl oz
L
 liters
 0.264
 gallons
 gal
m3
 cubic
meters
 35.314
 cubic
feet
 ft3
m3
 cubic
meters
 1.307
 cubic
yards
 yd3
MASS
g
 grams
 0.035
 ounces
 oz
kg
 kilograms
 2.202
 pounds
 lb
Mg (or "t")
 megagrams

(or "metric ton")
 1.103
 short
tons (2000 lb)
 T

TEMPERATURE
oC
 Celsius
 1.8C + 32
 Fahrenheit
 oF

ILLUMINATION

lx
 lux
 0.0929
 foot-candles
 fc
cd/m2
 candela/m2
 0.2919
 foot-Lamberts
 fl

FORCE and PRESSURE or STRESS
N
 newtons
 0.225
 poundforce
 lbf
kPa
 kilopascals
 0.145
 poundforce per square inch
 lbf/in2









at 6:01 AM 0 comments
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