Online calculator catalog
Life 57
	Calendar   Age,   Old Russian (Byzantine) system of chronology,   How many workdays between two dates?,   The Muslim calendar. The Gregorian calendar conversion,   Julian Day, ... +15
	Date and Time   Days count in several date spans,   Mayan calendar, 2012, the end of the world.,   Sun position at a given date. Azimuth and elevation table.,   Time difference between the cities,   Number of days in a year, ... +39
	Health   Ideal weight calculator using Body Mass Index,   Body fat calculator - YMCA formula,   The basal metabolic rate,
Professional 162
	Computers   LL1 grammar analysis. Yet another top-down parser generator.,   Vigenère cipher,   VARIANT DATE to datetime string,   Hill cipher,   Shannon Entropy, ... +16
	Engineering   Root and power,   Barometric leveling,   Petroleum product density,   Hip roof calculator,   Tilted cylindrical tank volume, ... +48
	Finance   When it becomes profitable to pay the tax as a sole proprietor?,   Price based on running meter,   Bank card number validation,   Loan payment example,   Simple Interest, ... +9
	Navigation   Compass point between two locations,   Distance calculator,   Points of the compass,   City objects observation,   Distance through the Earth, ... +12
	Statistics   Events timeline,   Seasonal fluctuations. Seasonal indices. Constant mean method.,   Z-score from P-value,   Spearman's correlation coefficient,   Geometric Distribution. Probability density function, cumulative distribution function, mean and variance, ... +39
	Telecommunications   Flag semaphore signals,   Telecommunications traffic, Erlang,   PBX channel number calculation,   VOIP call bandwidth,
	Units converters   Nautical measurement units,   Conversion of decimal number to other notations,   Meters per second and kilometers per hour,   Conversion between any bases,   Number of flagstones to units of area and vice versa, ... +14
Study 242
	Astronomy   Azimuth and solar elevation angle,   Angular size, linear size and distance,   Sunrise and sunset calculator,   Julian Day,   Shadow length, ... +2
	Chemistry   Convert moles to liters and liters to moles,   Molar volume,   Convert grams to liters and liters to grams,   Density of oil,   Convert moles to grams and grams to moles., ... +6
	Math   Making up words out of the syllables,   Solution of buckets and tank problem,   Combinatorics. Permutation generator from N to M without repetitions.,   Z-score / Standard score,   Complex fraction, ... +173
	Physics   Petroleum product density,   Free fall. Distance passed task.,   Temperature scales,   Surface tension. Weight and volume of the drop of liquid,   p-t Graph Analysis, ... +42