Online calculator catalog
Life 115
	Calendar   Days between dates. The historical version.,   Ahargana day count to the Gregorian date,   Gregorian date to Hindu mean lunisolar calendar,   Roman calendar,   Gregorian date to Hindu mean solar calendar, ... +14
	Date and Time   Convert days to years, months, and days,   Mayan calendar, 2012, the end of the world.,   Length of service calculation,   Date weeks out or before,   Time period as minutes to midnight, ... +56
	Health   McDonald's meal nutrition facts,   Lorenc formula of ideal weight,   Nagler's ideal weight calculator,   Daily Needs Calorie Rate,   Body proportionality, ... +14
Professional 274
	Computers   Audio file waveform,   Palette generator,   Repeated Word Heatmap,   Lines filter by number,   Relative luminance and contrast ratio, ... +62
	Engineering   Barometric leveling,   Arithmetic sequence calculator and problems solver,   Values of one-variable function,   Relations between the mass, the length, the width, and the area density (surface density) of the fabric,   Equilibrium moisture content , ... +59
	Finance   Price based on running meter,   Labor retirement pension amount (for Russia),   Comparing prices using cost per square meter,   Commission calculator,   Tax deductions from personal income tax, ... +29
	Image processing   Morphological filters,   Box filters for image processing,   Image manipulation,   Color to Grayscale Conversion,   Jpeg image meta-data, ... +5
	Navigation   Distance between two cities,   Fuel consumption,   Cost of one hour (or kilometer),   Fuel spent in liters, fuel tanks, and money,   City objects observation, ... +17
	Statistics   Events timeline,   Analytical performance indicators,   Seasonal fluctuations. Seasonal indices. Method of simple averages,   Exponential Moving Average,   Poisson Distribution. Probability density function, cumulative distribution function, mean and variance, ... +27
	Telecommunications   VOIP call bandwidth,   Number of agents in a call center,   Morse Code,   Morse code. Mutator, ... +1
	Units converters   Inches to pixels and pixels to inches converter,   Digital image size in pixels and photo print size,   Conversion of decimal number to other notations,   Math operations on degrees,   Plane angles measurement systems, ... +18
	Сryptography   Vigenère cipher breaker,   Isogram checker,   Standard Galactic Alphabet decoder,   Rail fence cipher,   Gravity Falls Bill's symbol substitution cipher decoder, ... +11
Study 331
	Chemistry   ABV (Alcohol by volume),   Convert grams to liters and liters to grams,   pH of a solution calculator,   Raoult's Second law and the freezing temperature.,   Convert moles to liters and liters to moles, ... +14
	Math   The diagonals of a parallelogram,   Making up words out of the syllables,   Angular size, linear size, and distance,   Determinant of a matrix,   Fraction to Percent and Percent to Fraction converter, ... +256
	Physics   Hydrostatic pressure,   Dew point,   Sound Speed in Gases,   Average Compressibility Factor, (dimensionless),   Wind energy and wind power, ... +42