Online calculator catalog
Life 69
	Calendar   Fixed date to Gregorian date,   Area de la Sombra de un Objeto,   Ancient Egyptian Calendar,   How many workdays between two dates?,   Orthodox Easter date calculator, ... +28
	Date and Time   Total time,   Moonphases,   How many hours between two days,   Date to timestamp converter,   Julian and Gregorian calendars, ... +44
	Health   Ideal weight calculator using Paul Broca formula,   The basal metabolic rate,
Professional 169
	Computers   Shannon-Fano coding,   LL1 grammar analysis. Yet another top-down parser generator.,   Substitution Cipher Tool,   GET request string parser,   Huffman coding, ... +18
	Engineering   Petroleum product density,   Power to the People,   Counting pipes from the end face,   Spherical sector,   Arithmetic sequence calculator and problems solver, ... +50
	Finance   Discount calculator,   The calculation of amortization for tax purposes,   Mortgage calculator,   Real interest rate using Fisher equation,   Loan payment example, ... +12
	Navigation   Tidal gate calculator (Rule of twelfths),   Compass point between two locations,   City objects observation,   Compass Points,   Distance through the Earth, ... +12
	Statistics   Count to Probability,   Centered Moving Average,   Triple exponential smoothing,   Time Series Decomposition,   Z-score from P-value, ... +39
	Telecommunications   PBX channel number calculation,   Number of agents in call center,   Telecommunications traffic, Erlang,
	Units converters   Number of days in a year,   Imperial to Metric and Metric to Imperial measures of length converter,   Cartesian and polar two-dimensional coordinate systems,   Display aspect ratio and dimensions,   Conversion from decimal numeral system, ... +14
Study 311
	Astronomy   Sunrise and sunset time,   Azimuth and solar elevation angle,   Sunrise and sunset calculator,   Shadow length,   Sun position at a given date. Azimuth and elevation table., ... +2
	Chemistry   Acid-base titration curves,   Concentration of analyte with uncertaintly analysis for replicate titrations,   Molar volume,   Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure.,   Chemical equation balancer, ... +11
	Math   Estimated Mean of a Population,   Collinearity of vectors in 2d space,   Root and power,   Equation of a line passing through two points in 3d,   Determinant of a matrix, ... +236
	Physics   Quantity of heat,   Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure.,   Power into Torque and vise versa,   Temperature scales,   Direct observation error analisys, ... +43