Wolfram|Alpha

Units & Measures

Units ››

get information and conversions for a unit
foot pound
get unit conversions for a quantity
120 meters
convert to a specified unit
20mL in drams
do a calculation with units
10 miles + 14 kilometers
compare two quantities
175lb vs 100kg

Measurement Devices ››

discover how to measure different physical properties
acceleration measuring devices
discover what different devices measure
what does a ruler measure

Industrial & Construction ››

get information about a wire gauge
AWG 18
get dimensions of a screw or bolt
1/4 inch bolt
compute volume of paint required to cover an area
1500 sq ft primer

Material Hardness ››

convert a specific material hardness to various other systems
Mohs 6.5
convert a material hardness number into a specific system
convert Rockwell c 44 to Brinell

Display Formats ››

get data on a computer display format
VGA display
get dimensions of a paper format
A4 paper
compare photo sizes
5" by 7" photo vs 8" by 10" photo

Fashion Sizes ››

compute ring size equivalents
ring size 8
convert ring size to a specified system
What is the french equivalent ring size to ring size 2?
compute shoe size equivalents
U.S. women's size 5 shoe
convert shoe size to a specified system
U.K. men's size 11 shoe in Japanese size

Knitting Needle Sizes ››

get information about knitting needle sizes
knitting needle size 8 6mm knitting needle

Tire Sizes ››

get information about a car or light truck tire size
tire size 195/55R16
get information about a bicycle tire size
tire size 700x35C

Gas Marks ››

get temperature and other data for a gas mark
gas mark 1/4 stufe 5
convert gas mark temperatures to specified units
convert gas mark 5 to Kelvins

Packing & Covering of Objects ››

estimate the number of objects required to fill a container
How many baseballs fit in a Boeing 747?
estimate the number of objects required to cover a specified area
pennies to cover 2 square miles
estimate the number of objects required to circle another object
How many grains of rice would it take to stretch around the moon?