Online calculator catalog
Life 121
	Calendar   Armenian calendar,   Week days calculator,   Ethiopian calendar,   ISO calendar,   365 days calendar date to Gregorian date, ... +14
	Date and Time   Tips and tricks #14: How to use a masked input,   Convert days to years, months, and days,   Time percentage,   How many weeks are between two dates?,   Date calculator, ... +60
	Health   Brunhard's formula ideal weight calculator,   Ideal weight calculator using Paul Broca formula,   Nagler's Ideal Weight Calculator,   Body proportionality,   Strength of alcoholic cocktail, ... +13
Professional 325
	Computers   LZW,   Numbered list maker,   Automated Vigenère cipher decoder,   Relative luminance and contrast ratio,   Conditional entropy, ... +60
	Engineering    Albendazole 10% (veterinary). Calculation of the dose ,   Air Flow Calibration,   Prueba2,   Square Stack Calculator,   Laminate flooring. The calculation of the number of planks, ... +34
	Finance   Russian Central Bank Exchange Rate Converter,   Bank card number validation,   Accrual-Based Compound Interest Calculator,   Percentage,   Compound interest at a certain number of days, ... +30
	Image processing   Median filter,   Morphological filters,   Box filters for image processing,   Image color set,   Watercolor Filter, ... +6
	Navigation   City objects observation,   Earth Radius by Latitude (WGS 84),   Compass, magnetic and true course calculator,   Compass Points,   Tidal gate calculator (Rule of twelfths), ... +15
	Statistics   Binomial distribution, probability density function, cumulative distribution function, mean and variance,   Seasonal Indices for Quarterly Data,   Exponential Moving Average,   Log-normal distribution,   Generator of random Russian first and last names and surnames with frequency of occurrence, ... +32
	Telecommunications   Number of agents in a call center,   VOIP call bandwidth,   Morse Code Converter: Translate and Decode Messages,   PBX channel number calculation, ... +1
	Units converters   Plane angles measurement systems,   Conversion between imperial and metric units of area,   Number of flagstones to units of area and vice versa,   Wooden Pack Volume Calculator,   The Decimal to Binary, Hexadecimal, and Octal Converter, ... +19
	Сryptography   Wage payment delay compensation ,   Index of Coincidence,   The next lucky ticket,   Gravity Falls Author's symbol substitution cipher decoder,   Simple interest rate calculator, ... +83
Study 419
	Astronomy   Declination and maximum altitude of the Sun above the horizon on a given date,   Shadow length,   Zero Shadow Day,
	Chemistry   Chemical equation balancer,   The Chemical Reaction Search Calculator,   Molar mass of the substance,   Acid-base titration curves,   Convert moles to liters and liters to moles, ... +20
	Math   Egyptian Fraction to Rational Number Converter,   Rectangle Area Calculator,   Eigenvalue calculator,   Bisection method,   How many circles of radius r fit in a bigger circle of radius R, ... +309
	Physics   Petroleum product density,   Simple beam support reaction,   Altitude difference by barometric formula,   Space object velocity,   Angular velocity and linear velocity, ... +61