Online calculator catalog
Life 48
	Calendar   Area de la Sombra de un Objeto,   How many workdays between two dates?,   Days between dates. The historical version.,   Number of days in a year,   Orthodox Easter date calculator, ... +13
	Date and Time   How many workdays between two dates?,   Sun position at a given date. Azimuth and elevation table.,   Date and number of working days (for Russia),   Issue number generator,   Days count in several date spans, ... +33
	Health   The basal metabolic rate,   Ideal weight calculator using Paul Broca formula,   Ideal weight calculator using Body Mass Index,   Body fat calculator - YMCA formula,
Professional 145
	Computers   GET request string parser,   Count the number of words,   VARIANT DATE to datetime string,   LL1 grammar analysis. Yet another top-down parser generator.,   Binary, inverse and complement codes, ... +15
	Engineering   Barometric leveling,   Angle bisector of a triangle,   One-variable function graph,   Triangle angles for given triangle sides,   Binary numbers calculator, ... +47
	Finance   Mortgage calculator,   Bank card number validation,   Progressive tax,   Simple Interest,   Calculation of payments on corporate property tax, ... +8
	Navigation   Distance through the Earth,   Compass point between two locations,   Course angle and the distance between the two points on loxodrome (rhumb line).,   Points of the compass,   Flag semaphore signals, ... +11
	Statistics   Chande momentum oscillator indicator,   Probability of given number success events in several Bernoulli trials,   Log-normal distribution,   P-value,   Seasonal fluctuations. Seasonal indices. Constant mean method., ... +26
	Telecommunications   VOIP call bandwidth,   Flag semaphore signals,   Telecommunications traffic, Erlang,   Number of agents in call center,   PBX channel number calculation,
	Units converters   Nautical measurement units,   Converting degrees to radians,   Conversion of decimal number to other notations,   Beaufort scale,   Conversion from decimal numeral system, ... +14
Study 203
	Astronomy   Angular size, linear size and distance,   Sunrise and sunset calculator,   Shadow length,   Azimuth and solar elevation angle,   Sunrise and sunset time, ... +2
	Chemistry   Molar mass of the substance,   Chemical equation balance,   Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure.,   Raoult's Second law and the freezing temperature.,   Density of oil, ... +3
	Math   Simple math in any numeral system,   Spherical cap and spherical segment,   Calculator of area of a triangle using Hero's formula,   Regular polygon. Incircle and circumcircle,   Cylinder, ... +137
	Physics   Energy measurement units,   Petroleum product density,   Battery discharge time depending on load,   Boiling point dependence on the altitude above sea level,   Hydrostatic pressure, ... +41