|Number of days in a year|
|Conversion of decimal number to other notations|
This calculator converts decimal number to binary, hexadecimal and octal notations
|Converting degrees to radians and vice versa|
Converts degrees, minutes and seconds to radians and radians to degrees, minutes and seconds
|Cartesian and polar two-dimensional coordinate systems|
This online calculator converts polar coordinates to cartesian coordinates and vice versa.
|Imperial to Metric and Metric to Imperial measures of length converter|
The calculators below convert units of length from Metric to Imperial and from Imperial to Metric and display results as fractional values and as composite values.
|Height in the old Russian system of measures|
This calculator computes height expressed in the old Russian measure system units: arshins and vershoks
|Conversion between metric units of length and old Russian system of measures units of length|
The calculators in this article convert units of length from old Russian system of measures units to metric units and back.
|Exotic length units|
Converter from exotic length units to meters
|Plane angles measurement systems|
|Conversion between imperial and metric units of area|
These calculators convert imperial to metric and metric to imperial units of area
|Pressure units converter|
Calculator which converts units of pressure
|Conversion from decimal numeral system|
This calculator converts given decimal value to other positional numeral system
|Pounds to kilograms conversion and vice versa|
This online calculator can be used for conversion of kilograms to pounds, ounces and grains as they are used in USA or UK.
|Conversion of pounds into inches|
Conversion of old pounds artillery caliber into more modern inches and millimeters
|Conversion between any bases|
This calculator converts number from one numeral system to another, given both system's bases
Conversion between wind speed measurement units including Beaufort numbers, km/h, m/s, mph, fps.
|Meters per second and kilometers per hour|
This simple calculator convert meters per second to kilometers per hour and vice versa
|Nautical measurement units|
Nautical mile, sea mile, cable
|One's complement, and two's complement binary codes|
This online calculator displays one's complement and two's complement codes for the entered negative integer.
|Total volume calculator|
This online calculator calculates the total volume of the item's pack by the size of one unit