Online calculator catalog
Life 94
	Calendar   ISO calendar,   Week days calculator,   Armenian calendar,   365 days calendar date to Gregorian date,   Gregorian date to Julian date, ... +7
	Date and Time   Russian non-working days,   Time units,   Julian and Gregorian calendars,   Sun position at a given date. Azimuth and elevation table.,   How many workdays between two dates?, ... +49
	Health   The number of packs steroid you need for cycle,   Determination of the baby's sex,   Daily Needs Calorie Rate,   Brunhald formula ideal weight calculator,   Coronavirus disease epidemic in different countries, ... +14
Professional 262
	Computers   Ancient PixelArt: CompuServe RLE file viewer,   Simple math in any numeral system,   List filtering,   Conversion of fractional numbers between numeral systems,   Symbol frequencies table, ... +57
	Engineering   Circular Intake/Exhaust Calculator,   Walls volume,   Square Door Tank Volume,   Pipe Wall Thickness,   Direct observation error analysis, ... +57
	Finance   Price based on running meter,   Real interest rate using Fisher equation,   Bank card number validation,   Cost per unit of volume,   Accretion and discounting of annuity payments, ... +29
	Navigation   Earth Radius by Latitude (WGS 84),   Flag semaphore signals,   Fuel consumption,   City objects observation,   Prospect distance from the ground and line of sight distance between two observers, ... +17
	Statistics   Geometric Distribution. Probability density function, cumulative distribution function, mean and variance,   Hypergeometric Distribution. Probability density function, cumulative distribution function, mean and variance,   Log-normal distribution,   Indicators of variations,   Mann-Whitney Test, ... +33
	Telecommunications   Number of agents in call center,   Morse code. Mutator,   Morse Code,   PBX channel number calculation, ... +1
	Units converters   Conversion of decimal number to other notations,   Conversion between imperial and metric units of area,   Pounds to Kilogramms convertion and vice versa,   Digital image size in pixels and photo print size,   Plane angles measurement systems, ... +18
	Сryptography   Substitution cipher breaker,   Gravity Falls Bill's symbol substitution cipher decoder,   Isogram checker,   Vigenère cipher breaker,   Kasiski test, ... +10
Study 303
	Chemistry   ABV (Alcohol by volume),   Convert grams to liters and liters to grams,   Fertilizing,   Concentration of analyte with uncertainty analysis for replicate titrations,   Peptide dissolution calculator, ... +14
	Math   Square-free polynomial factorization in finite field,   Dot product,   Calculator of area of a triangle using Hero's formula,   Complex polynomial value calculation,   Pythagorean theorem calculator, ... +230
	Physics   Tips and tricks #5: How to show/hide input and output controls in a calculator,   Complementary color,   The waves and the wind. Calculation of wave characteristics,   Free fall. Distance passed task.,   Hydrostatic pressure, ... +40