Online calculator catalog
Life 94
	Calendar   ISO calendar,   365 days calendar date to Gregorian date,   Roman calendar,   Ethiopian calendar,   Coptic calendar, ... +7
	Date and Time   Date by the Julian Day Number,   Week number of a given date,   Total time,   Time. Total sum,   Time units, ... +49
	Health   Proportionality of body — McCallum's formula,   The number of packs steroid you need for cycle,   Figure's grace,   Determination of the baby's sex,   Body proportionality, ... +14
Professional 261
	Computers   Check Digit Mod 11 (ISBN-10 check digit),   VARIANT DATE to datetime string,   Substitution Cipher Tool,   Extract domain names from URLs and count unique names,   Conversion between any bases, ... +56
	Engineering   Throat Calculators,   Wallpaper calculator,   Power to the People,   Solving limit problems using L'Hospital's Rule,   Film calculator, ... +56
	Finance   Simple Interest Daily Rate,   Cost per unit of volume,   Progressive tax,   Simple Interest,   Percentage, ... +29
	Navigation   Fuel spent in liters, fuel tanks and money,   Cost of one hour (or kilometer),   Tidal gate calculator (Rule of twelfths),   City objects observation,   Fuel consumption, ... +17
	Statistics   P-value,   Seasonal Indices for Quarterly Data,   Weighted moving average,   Lagged scatterplot,   Two sample t-Test, ... +34
	Telecommunications   PBX channel number calculation,   Number of agents in call center,   Morse code. Mutator,   Morse Code, ... +1
	Units converters   Plane angles measurement systems,   Area expression with different units,   Inches to pixels and pixels to inches converter,   Miles per gallon to liters per kilometer fuel consumption converter,   Display aspect ratio and dimensions, ... +18
	Сryptography   Standard Galactic Alphabet decoder,   Gravity Falls Author's symbol substitution cipher decoder,   Isogram checker,   Pangram checker,   Gravity Falls Bill's symbol substitution cipher decoder, ... +10
Study 299
	Chemistry   Molar volume,   Molarity calculator,   Concentration of analyte with uncertainty analysis for replicate titrations,   Convert moles to liters and liters to moles,   Chemical equation balancer, ... +13
	Math   Polynomial factors as formula,   Combinations generator,   Volume of liquid in a tilted tank with hemispherical heads,   Linear Diophantine equations,   Angle bisector of a triangle, ... +229
	Physics   Average Compressibility Factor, (dimensionless),   CaCl2 ppm to chlorides WPS ppm converter,   The waves and the wind. Wave height statistical forecasting,   Doppler Effect in sound,   Normal force, ... +38