Online calculator catalog
Life 121
	Calendar   Week days calculator,   Ethiopian calendar,   Hindu mean lunisolar calendar to Gregorian date,   Gregorian date to Julian date,   Fixed date to Gregorian date, ... +14
	Date and Time   Tips and tricks #14: How to use a masked input,   Jarvis march,   Issue number generator,   Timeline Midnight Converter,   Time. Total sum, ... +60
	Health   Nagler's Ideal Weight Calculator,   Pregnancy Due Date Predictor,   Body Proportions Calculator,   Strength of alcoholic cocktail,   Brunhard's formula ideal weight calculator, ... +13
Professional 325
	Computers   LZW,   GET Request String Parser,   HTML table to JSON array,   Decision tree builder,   H264 Maximum References Frames, ... +60
	Engineering   Film calculator,   Equilibrium moisture content ,   Wallpaper calculator,   Throat Calculators,   Volume-to-Weight Converter, ... +34
	Finance   Accrual-Based Compound Interest Calculator,   Mortgage calculator,   Tax deductions from personal income tax,   Calculation of payments on corporate property tax,   Unused leave compensation at dismissal, ... +30
	Image processing   Box filters for image processing,   Watercolor Filter,   Median filter,   Image Flip & Rotate,   Color image to black and white image, ... +6
	Navigation   Prospect distance from the ground and line of sight distance between two observers,   Earth Distance Calculator,   Ford VIN decoder - Line information,   Course angles and distance between the two points on the orthodrome(great circle),   City objects observation, ... +15
	Statistics   Indicators of variations,   Analytical performance indicators,   Seasonal fluctuations. Seasonal indices. Method of simple averages,   Paired Sample t-Test,   Text fitness, ... +32
	Telecommunications   PBX channel number calculation,   VOIP call bandwidth,   Morse-ify and Modify.,   Morse Code Converter: Translate and Decode Messages, ... +1
	Units converters   Area Converter,   Imperial to Metric and Metric to Imperial measures of length converter,   Conversion of pounds into inches,   Conversion between imperial and metric units of area,   Cubic meters of wood, ... +19
	Сryptography   Pigpen cipher decoder,   Kasiski test,   Калкулатор на поени,   Jpeg file structure,   Linear intersection, ... +83
Study 419
	Astronomy   Declination and maximum altitude of the Sun above the horizon on a given date,   Dates of the beginning and end of polar night and polar day at a given latitude,   Shadow length,
	Chemistry   Peptide calculator,   Molarity to molality and vice versa,   Convert grams to moles and moles to grams,   Alcohol amount in the aqueous alcohol solution,   Dilution calculator and problems solver, ... +20
	Math   Quick Sum Calculator,   Sexagesimal,   One's complement, and two's complement binary codes,   Newton's method,   Geometric progression, ... +309
	Physics   Battery discharge time depending upon load,   Determining air humidity with the psychrometric method,   Dew Point Calculator,   Centripetal Force Solver,   Vertical Collision Kinematics Calculator, ... +61