Online calculator catalog
Life 121
	Calendar   Hindu mean solar calendar to Gregorian date,   365 days calendar date to Gregorian date,   Gregorian to fixed date,   Ethiopian calendar,   Gregorian date to Julian date, ... +14
	Date and Time   Azimuth and solar elevation angle,   Moonphases,   Week Number Calculator,   How many hours between two days,   Date and number of working days (for Russia), ... +60
	Health   Strength of alcoholic cocktail,   Pregnancy Due Date Predictor,   Lorenc Ideal Weight Calculator,   Nagler's Ideal Weight Calculator,   Weathering of alcohol concentration in the blood, ... +13
Professional 325
	Computers   Shannon Entropy,   Email Finder,   Conversion of fractional numbers between numeral systems,   Lines filter by number,   RAID arrays сalculator, ... +60
	Engineering   The amount of material for the mesh,   Oval Tank Volume Calculator,   Volume-to-Weight Converter,   Throat Calculator for Overlapping Cylindrical Tanks,   Laminate flooring. The calculation of the number of planks, ... +34
	Finance   Tax-Adjusted Deal Profitability Calculator,   Labor retirement pension amount (for Russia),   Effective interest rate,   Bank card number validation,   Mortgage calculator, ... +30
	Image processing   Digital images parameters comparison,   Median filter,   Color to Grayscale Conversion,   Watercolor Filter,   Jpeg image meta-data, ... +6
	Navigation   Flag Semaphore Translator,   Course angles and distance between the two points on the orthodrome(great circle),   Prospect distance from the ground and line of sight distance between two observers,   Points of the compass,   Distance between two cities, ... +15
	Statistics   Cuba World Development Indicators 2016 - in memory of Fidel Castro,   Events timeline,   Analytical performance indicators,   Hypergeometric Distribution. Probability density function, cumulative distribution function, mean and variance,   Simple Moving Average, ... +32
	Telecommunications   Morse Code Converter: Translate and Decode Messages,   PBX channel number calculation,   Morse-ify and Modify.,   Number of agents in a call center, ... +1
	Units converters   Number of flagstones to units of area and vice versa,   Cubic meters of wood,   Ton-kilometer. Conversion based on the cost of a kilometer,   Speed Converter,   Degrees-minutes-seconds to decimal degrees conversion and vice versa., ... +19
	Сryptography   Count the number of separated values in the list,   Calculating the partial derivative by its definition,   Convert RGB integer colours to hexadecimal color code for web,   Wage payment delay compensation ,   Generator of an OpenOffice document (odt) based on a template document and data from another document, ... +83
Study 419
	Astronomy   Dates of the beginning and end of polar night and polar day at a given latitude,   Shadow length,   Declination and maximum altitude of the Sun above the horizon on a given date,
	Chemistry   Molar Mass Calculator,   Concentration of analyte with uncertainty analysis for replicate titrations,   Convert moles to liters and liters to moles,   Convert grams to moles and moles to grams,   Molarity to molality and vice versa, ... +20
	Math   Hip roof calculator,   Regular Circumcircle Polygon Area Calculator,   Equation of a circle calculator,   Lagged Scatterplot Calculator,   Fermat primality test, ... +309
	Physics   Humidification Load Calculator - Find the Perfect Humidifier,   Angular velocity and linear velocity,   Surface tension. Weight and volume of the drop of liquid,   Buoyant Force Calculator - Weight of Displaced Liquid,   Determining air humidity with the psychrometric method, ... +61