Online calculator catalog
Life 121
	Calendar   Roman calendar,   365 days calendar date to Gregorian date,   Ahargana day count to the Gregorian date,   Indian calendars,   Hindu mean lunisolar calendar to Gregorian date, ... +14
	Date and Time   Time interval between two dates,   Time between two dates with time zone,   Length of service calculation,   Sunrise and sunset calculator,   World Time Calculator, ... +60
	Health   Coronavirus disease epidemic in different countries,   Strength of alcoholic cocktail,   Ideal weight calculator using Paul Broca formula,   Pregnancy Due Date Predictor,   Nagler's Ideal Weight Calculator, ... +13
Professional 325
	Computers   Unique words count,   Shannon Coding Calculator,   Hartley Information Calculator,   The Phone Number Extractor,   Substitution cipher tool, ... +60
	Engineering   Internal forces diagrams for the two-support beam,   Baffle Plate Gap Calculator,   Barlow formula,   Tank Volume Calculators,   Shipment weight, ... +34
	Finance   How much does cash weigh?,   Unused leave compensation at dismissal,   Russian Central Bank Exchange Rate Converter,   Compound interest at a certain number of days,   Tax deductions from personal income tax, ... +30
	Image processing   Image color set,   Jpeg image meta-data,   Digital images parameters comparison,   Box filters for image processing,   Color to Grayscale Conversion, ... +6
	Navigation   Distance through the Earth,   Ford VIN decoder - Line information,   Tidal gate calculator (Rule of twelfths),   Compass, magnetic and true course calculator,   Earth Distance Calculator, ... +15
	Statistics   Weighted moving average,   Scatter diagram,   Indicators of variations,   Two sample t-Test,   Text fitness, ... +32
	Telecommunications   Morse Code Converter: Translate and Decode Messages,   VOIP call bandwidth,   Number of agents in a call center,   Morse-ify and Modify., ... +1
	Units converters   Expressing length through different units,   Speed Converter,   Wooden Pack Volume Calculator,   Inches to Pixels and Pixels to Inches Converter,   Exotic length units, ... +19
	Сryptography   Old Russian money,   Inkscape SVG cleaner,   Wordpress plugin,   Amount of timber for the house,   UTF-8 encoded string, ... +83
Study 419
	Astronomy   Declination and maximum altitude of the Sun above the horizon on a given date,   Dates of the beginning and end of polar night and polar day at a given latitude,   Zero Shadow Day,
	Chemistry   Dilution of solutions,   Convert moles to liters and liters to moles,   Raoult's Second law and the freezing temperature.,   The Chemical Reaction Search Calculator,   Fertilizing, ... +20
	Math   Greatest common divisor of several polynomials,   Math operations on degrees,   Math equation syntax,   Сomputer algebra,   Counting pipes from the end face, ... +309
	Physics   Density of air as a function of pressure and temperature,   Capacitor in Direct Current Circuit,   Humidification Load Calculator - Find the Perfect Humidifier,   Electrical conductivity and total dissolved solids,   Velocity in Uniformly Accelerated Motion in relativistic mechanics, ... +61