Online calculator catalog
Life 100
	Calendar   Roman calendar,   Ethiopian calendar,   Days between dates. The historical version.,   Coptic calendar,   365 days calendar date to Gregorian date, ... +7
	Date and Time   Age,   Date and interval,   Use of Time Summary,   Release Date Countdown gadget,   Gregorian calendar. Julian calendar. The calendar eras., ... +50
	Health   Proportionality of body — McCallum's formula,   Daily Calorie Rate,   Determination of the baby's sex,   When to drive after drinks?,   Nagler's ideal weight calculator, ... +14
Professional 262
	Computers   LL1 grammar analysis. Yet another top-down parser generator.,   Huffman coding,   Symbol frequencies table,   The Discrete Fourier Transform Sandbox,   Count the number of words, ... +57
	Engineering   Flow Rate and Pressure Drop of Gas Through a Pipeline,   Liquid level in the tilted cylinder,   Baffle Plate Gap Calculator,   Heat Index,   Square Stack Calculator, ... +57
	Finance   Deal profitability analysis ,   Interest on the deposit and inflation,   Unused leave compensation at dismissal,   Dollars to rubles and vice versa by Central Bank of Russia exchange rate,   Bank card number validation, ... +29
	Navigation   Course angle and the distance between the two points on loxodrome (rhumb line).,   Course angles and distance between the two point on the orthodrome(great circle),   Compass, magnetic and true course.,   Beaufort scale,   Fuel consumption, ... +17
	Statistics   Time Series Decomposition,   Cuba World Development Indicators 2016 - in memory of Fidel Castro,   Hypergeometric Distribution. Probability density function, cumulative distribution function, mean and variance,   Spearman's correlation coefficient,   Log-normal distribution, ... +33
	Telecommunications   Number of agents in call center,   PBX channel number calculation,   VOIP call bandwidth,   Morse code. Mutator, ... +1
	Units converters   Pounds to Kilogramms convertion and vice versa,   Pressure units converter,   Imperial to Metric and Metric to Imperial measures of length converter,   Exotic length units,   Meters per second and kilometers per hour, ... +18
	Сryptography   Isogram checker,   Standard Galactic Alphabet decoder,   Substitution cipher breaker,   PATHFINDER cipher checker,   Index of Coincidence, ... +10
Study 304
	Chemistry   Molar mass of the substance,   Molar mass of the substance,   Molarity calculator,   Convert moles to liters and liters to moles,   Convert moles to grams and grams to moles., ... +14
	Math   Collinearity of vectors in 2d space,   Covariance Calculator,   Polynomial Greatest Common Divisor,   Bisection method,   Combinatorics. Permutation generator from N to M without repetitions., ... +231
	Physics   Sound Speed in Gases,   Kinematic Equations for Uniform Acceleration,   The waves and the wind. Wave height statistical forecasting,   Сonstant acceleration,   Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure., ... +40