Units

Get information and conversions for a unit:

foot pound

coulombs

ft^3

kg m^2/s^2

Conversions

Get unit conversions for a quantity:

120 meters

50 gallons

12 stone

35 megacuries

3 Danish pots

450 MeV

10 megabytes

Convert to a specified unit:

20mL in drams

5 furlongs in miles

30mpg in km/liter

convert 10 megabytes to mebibytes

100°C to Fahrenheit

Calculations

Do a calculation with units:

10 miles + 14 kilometers

Specify a unit for the result of a calculation:

(20 feet)(1 mile) in acres

Comparisons

Compare two quantities:

175lb vs 100kg

Get comparisons for a given quantity:

1 million miles

50mg

Dimensional Analysis

Get information about a physical quantity:

mass density

Compute dimensionless combinations:

energy, momentum

Compute a dimensionless quantity:

Reynolds number

Prefixes

Get information about prefixes:

binary prefixes

SI prefixes

Cooking Measures

Convert between ounces, cups, etc.:

how many ounces in a cup?

Convert between millimeters and teaspoons, ounces, etc.:

how many ml in a teaspoon?

Convert between mass and volume for a particular ingredient:

weight of 1 cup milk in grams

SI Units

Discover information about and convert from SI units:

centimeter

Find standard SI units used to measure a particular physical quantity:

momentum

Return a list of SI prefixes:

si prefixes

US Customary Units

Discover information about and convert from US customary units:

inch

Convert US customary quantities to other units:

3 feet

Convert quantities to or from US customary units:

convert 120 km/h to imperial