Online calculator catalog
Life 69
	Calendar   Age,   How many workdays between two dates?,   Number of days in a year,   Ancient Egyptian Calendar,   Date by the Julian Day Number, ... +28
	Date and Time   Mayan calendar, 2012, the end of the world.,   Time Span Calculator,   Travel Duration,   Sun position at a given date. Azimuth and elevation table.,   How many months are there between two dates?, ... +44
	Health   Ideal weight calculator using Paul Broca formula,   Ideal weight calculator using Body Mass Index,
Professional 171
	Computers   Simple math in any numeral system,   Count the number of words,   Caesar cipher,   Shannon coding,   Conversion from decimal numeral system, ... +19
	Engineering   Direct observation error analisys,   Math equation simplification,   Spherical cap and spherical segment,   Parallel and perpendicular lines on a plane,   Geometric progression, ... +50
	Finance   Discount calculator,   Loan payment example,   The calculation of amortization for tax purposes,   Progressive tax,   Real interest rate using Fisher equation, ... +12
	Navigation   Compass, magnetic and true course.,   City objects observation,   Earth Radius by Latitude (WGS 84),   Distance across the surface vs distance through the Earth,   Course angles and distance between the two point on the orthodrome(great circle), ... +12
	Statistics   Bayes’ theorem,   Histogram group number,   Negative Binomial Distribution. Probability density function, cumulative distribution function, mean and variance,   Binomial distribution, probability density function, cumulative distribution function, mean and variance,   Weighted moving average, ... +40
	Telecommunications   VOIP call bandwidth,   PBX channel number calculation,   Telecommunications traffic, Erlang,
	Units converters   Meters per second and kilometers per hour,   Display aspect ratio and dimensions,   Binary, inverse and complement codes,   Pressure units converter,   Converting degrees to radians, ... +14
Study 318
	Astronomy   Shadow length,   Sunrise and sunset time,   Azimuth and solar elevation angle,   Sun position at a given date. Azimuth and elevation table.,   Sunrise and sunset calculator, ... +2
	Chemistry   Density of oil,   Raoult's Second law and the freezing temperature.,   Convert moles to liters and liters to moles,   Molar mass of the substance,   Chemical equation balancer, ... +11
	Math   Combinatorics. Combinations, arrangements and permutations,   Collinearity of vectors in 2d space,   Modular arithmetic,   Two argument arc tangent,   Student t-distribution, ... +243
	Physics   Boiling point dependence on the altitude above sea level,   Humidification loads,   Relative humidity to absolute humidity and vise versa calculators,   Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure.,   Celsius to Fahrenheit calculator explained, ... +43