Online calculator catalog
Life 60
	Calendar   Gregorian calendar. Julian calendar. The calendar eras.,   Old Russian (Byzantine) system of chronology,   Julian Day,   Week days calculator,   Gregorian to fixed date, ... +19
	Date and Time   Time. Total sum,   Sunrise and sunset calculator,   How many workdays between two dates?,   Gregorian date to Ancient Egyptian date,   Date and interval, ... +43
	Health   Ideal weight calculator using Body Mass Index,   Ideal weight calculator using Paul Broca formula,
Professional 168
	Computers   Substitution Cipher Tool,   Playfair cipher,   Shannon-Fano coding,   Huffman coding,   Simple math in any numeral system, ... +18
	Engineering   Tank volume,   Volume of liquid in a tilted tank with hemispherical heads,   Binary numbers calculator,   Number of flagstones to units of area and vice versa,   Mathematical calculator, ... +50
	Finance   Compound interest. Arbitrary payment,   Family budget planner,   Simple Interest,   Progressive tax,   Mortgage calculator, ... +11
	Navigation   Flag semaphore signals,   Distance calculator,   Compass, magnetic and true course.,   Points of the compass,   Prospect distance from the ground and line of sight distance between two observers, ... +12
	Statistics   Weighted moving average,   Double exponential smoothing,   Seasonal fluctuations. Seasonal indices. Constant mean method.,   Exponential smoothing,   Binomial distribution, probability density function, cumulative distribution function, mean and variance, ... +39
	Telecommunications   PBX channel number calculation,   VOIP call bandwidth,   Number of agents in call center,
	Units converters   Converting degrees to radians,   Binary, inverse and complement codes,   Imperial to Metric and Metric to Imperial measures of length converter,   Conversion of decimal number to other notations,   Math operations on degrees, ... +14
Study 297
	Astronomy   Shadow length,   Sunrise and sunset time,   Julian Day,   Azimuth and solar elevation angle,   Sunrise and sunset calculator, ... +2
	Chemistry   Convert moles to grams and grams to moles.,   Molar mass of the substance,   Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure.,   Molar volume,   Alcohol amount in the aqueous alcohol solution, ... +7
	Math   Combinatorics. Combinations, arrangements and permutations,   Polynomial multiplication,   Polynomial Taylor Shift,   The greatest common divisor of two integers,   Combinations generator, ... +227
	Physics   The buoyant force,   Free fall. Distance passed task.,   Tips and tricks #5: How to show/hide input and output controls in a calculator,   Saturation vapour pressure,   Power into Torque and vise versa, ... +42