Online calculator catalog
Life 51
	Calendar   Number of days in a year,   Area de la Sombra de un Objeto,   Julian Day,   How many workdays between two dates?,   Week number of a given date, ... +13
	Date and Time   How many weeks are between two dates,   Azimuth and solar elevation angle,   Julian and Gregorian calendars,   Week number of a given date,   Age, ... +36
	Health   Ideal weight calculator using Body Mass Index,   The basal metabolic rate,   Ideal weight calculator using Paul Broca formula,   Body fat calculator - YMCA formula,
Professional 159
	Computers   Playfair cipher,   Shannon Entropy,   Symbol frequencies table,   Conversion from decimal numeral system,   Count the number of words, ... +16
	Engineering   Sine wave,   Density of oil,   Boiling point dependence on the altitude above sea level,   Counting pipes from the end face,   Derivative, ... +48
	Finance   When it becomes profitable to pay the tax as a sole proprietor?,   Progressive tax,   The calculation of amortization for tax purposes,   Loan payment example,   Bank card number validation, ... +9
	Navigation   Compass, magnetic and true course.,   Beaufort scale,   Points of the compass,   Nautical measurement units,   Compass point between two locations, ... +11
	Statistics   Z-score / Standard score,   Seasonal fluctuations. Seasonal indices. Constant mean method.,   Paired Sample t-Test,   Count to Probability,   Tips and tricks #8: How to reuse existing calculator, ... +37
	Telecommunications   VOIP call bandwidth,   Telecommunications traffic, Erlang,   PBX channel number calculation,   Flag semaphore signals,
	Units converters   Display aspect ratio and dimensions,   Cartesian and polar two-dimensional coordinate systems,   Binary, inverse and complement codes,   Digital image size in pixels and photo print size,   Math operations on degrees, ... +14
Study 233
	Astronomy   Azimuth and solar elevation angle,   Sun position at a given date. Azimuth and elevation table.,   Sunrise and sunset calculator,   Shadow length,   Julian Day, ... +2
	Chemistry   Convert moles to grams and grams to moles.,   Chemical equation balancer,   Convert grams to liters and liters to grams,   CaCl2 ppm to chlorides WPS ppm converter,   Raoult's Second law and the freezing temperature., ... +6
	Math   Regular polygon, number of sides and length of side from incircle and circumcircle radii,   Hip roof calculator,   Determinant of 3x3 matrices,   Random combination of numbers from specified range,   Altitude of a triangle, ... +164
	Physics   Volume of body given the buoyant force,   Temperature scales,   Ohm's law,   Surface tension. Weight and volume of the drop of liquid,   Energy measurement units, ... +42