Online calculator catalog
Life 57
	Calendar   Old Russian (Byzantine) system of chronology,   Time between two dates with time zone,   How many workdays between two dates?,   Time difference,   Week number of a given date, ... +16
	Date and Time   Time zones,   Sunrise and sunset calculator,   Total time,   Week number of a given date,   Old Russian (Byzantine) system of chronology, ... +41
	Health   The basal metabolic rate,   Ideal weight calculator using Paul Broca formula,
Professional 168
	Computers   Count the number of words,   Conversion between any bases,   Regular expression tester,   Conversion of fractional numbers between numeral systems,   Shannon coding, ... +18
	Engineering   Arithmetic progression,   Counting pipes from the end face,   Barometric leveling,   Power to the People,   Second, third and other derivatives, ... +50
	Finance   When it becomes profitable to pay the tax as a sole proprietor in Russia?,   The calculation of amortization for tax purposes,   Calculation of payments on corporate property tax,   Compound interest. Arbitrary payment,   Discount calculator, ... +11
	Navigation   Flag semaphore signals,   Distance through the Earth,   Compass Points,   Points of the compass,   Course angle and the distance between the two points on loxodrome (rhumb line)., ... +12
	Statistics   Bayes’ theorem,   Centered Moving Average,   Count to Probability,   Bernoulli trials table,   Triple exponential smoothing, ... +39
	Telecommunications   Telecommunications traffic, Erlang,   VOIP call bandwidth,   PBX channel number calculation,
	Units converters   Conversion of fractional numbers between numeral systems,   Number of days in a year,   Meters per second and kilometers per hour,   Display aspect ratio and dimensions,   Pressure units converter, ... +14
Study 289
	Astronomy   Shadow length,   Sunrise and sunset time,   Sun position at a given date. Azimuth and elevation table.,   Julian Day,   Azimuth and solar elevation angle, ... +2
	Chemistry   Density of oil,   Alcohol amount in the aqueous alcohol solution,   Molar volume,   Convert moles to liters and liters to moles,   CaCl2 ppm to chlorides WPS ppm converter, ... +7
	Math   Geometric progression. The common ratio and the first term,   Volume of liquid in a tilted tank with hemispherical heads,   Function approximation with regression analysis,   Mean, variance and standard deviation of discrete random variable,   Least Common Denominator for several fractions, ... +219
	Physics   Kinematic Equations for Uniform Acceleration,   Calculation of weight by volume,   Projection,   Kinematics. Throwing body up problem,   Clapeyron-Mendeleev equation. The relationship between the number of moles of gas, the temperature, volume and pressure., ... +42