Online calculator catalog
Life 57
	Calendar   Date by the Julian Day Number,   Mayan calendar, 2012, the end of the world.,   Days between dates. The historical version.,   Area de la Sombra de un Objeto,   Moonphases, ... +16
	Date and Time   Julian Day,   Total time,   Old Russian (Byzantine) system of chronology,   Day of week by date,   Timer, ... +41
	Health   Ideal weight calculator using Body Mass Index,   Ideal weight calculator using Paul Broca formula,
Professional 168
	Computers   Binary Coded Decimal (BCD),   Symbol frequencies table,   GET request string parser,   Count the number of words,   Conversion from decimal numeral system, ... +18
	Engineering   Arithmetic progression,   Values of one-variable function,   Triangle angles for given triangle sides,   The limit of the function at the given point,   Root and power, ... +50
	Finance   Simple Interest,   Nominal interest rates сomparison,   Commission calculator,   Loan payment example,   Compound interest. Arbitrary payment, ... +11
	Navigation   Compass point between two locations,   Distance calculator,   City objects observation,   Compass, magnetic and true course.,   Flag semaphore signals, ... +12
	Statistics   Log-normal distribution,   Exponential Moving Average,   Paired Sample t-Test,   Triple exponential smoothing,   Seasonal fluctuations. Seasonal indices. Constant mean method., ... +39
	Telecommunications   PBX channel number calculation,   Telecommunications traffic, Erlang,   VOIP call bandwidth,
	Units converters   Conversion of fractional numbers between numeral systems,   Imperial to Metric and Metric to Imperial measures of length converter,   Conversion of decimal number to other notations,   Conversion of pounds into inches,   Digital image size in pixels and photo print size, ... +14
Study 285
	Astronomy   Sunrise and sunset calculator,   Sun position at a given date. Azimuth and elevation table.,   Shadow length,   Sunrise and sunset time,   Julian Day, ... +2
	Chemistry   Convert moles to liters and liters to moles,   Density of oil,   Chemical equation balancer,   Convert grams to liters and liters to grams,   Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure., ... +7
	Math   Mathematical competition tasks,   Sine wave,   Normal distribution,   Polynomial multiplication,   Inverse matrix calculator, ... +215
	Physics   Ohm's law,   Relative humidity to absolute humidity and vise versa calculators,   Volume of body given the buoyant force,   Angular velocity and linear velocity,   Wind Chill Index, ... +42