Online calculator catalog
Life 121
	Calendar   Days between dates. The historical version.,   Gregorian date to the Ahargana day count,   Ahargana day count to the Gregorian date,   Gregorian to fixed date,   Hindu mean lunisolar calendar to Gregorian date, ... +14
	Date and Time   Convert days to years, months, and days,   Time between two dates with time zone,   World Time Calculator,   Mayan calendar, 2012, the end of the world.,   Ancient Egyptian Calendar, ... +60
	Health   Weathering of alcohol concentration in the blood,   McDonald's meal nutrition facts,   Body proportionality,   Coronavirus disease epidemic in different countries,   Determination of the baby's sex, ... +13
Professional 325
	Computers   Numbered list maker,   Shannon Coding Calculator,   Substitution cipher tool,   Keyboard layout and password,   Information gain calculator, ... +60
	Engineering   Relations between Mass, Length, Width, and Area Density of Fabric,   Equilibrium moisture content ,   Oval Tank Volume Calculator,   Throat Calculator for Cylindrical Tanks,   Heat Index Calculator, ... +34
	Finance   Annuity Calculator,   Tax-Adjusted Deal Profitability Calculator,   Real interest rate using Fisher equation,   Compound interest,   Compound interest at a certain number of days, ... +30
	Image processing   Watercolor Filter,   Jpeg image meta-data,   Digital images parameters comparison,   Image color set,   Image Flip & Rotate, ... +6
	Navigation   Cost of one hour (or kilometer),   Ford VIN decoder - Line information,   Prospect distance from the ground and line of sight distance between two observers,   Fuel consumption,   Fuel Consumption Calculator, ... +15
	Statistics   Negative Binomial Distribution. Probability density function, cumulative distribution function, mean and variance,   Spearman's Rank Correlation Calculator,   Hypergeometric Distribution. Probability density function, cumulative distribution function, mean and variance,   Binomial distribution, probability density function, cumulative distribution function, mean and variance,   Cuba World Development Indicators 2016 - in memory of Fidel Castro, ... +32
	Telecommunications   Morse-ify and Modify.,   VOIP call bandwidth,   Number of agents in a call center,   Morse Code Converter: Translate and Decode Messages, ... +1
	Units converters   Pounds to kilograms conversion and vice versa,   Conversion between imperial and metric units of area,   Area Converter,   Degrees-minutes-seconds to decimal degrees conversion and vice versa.,   Digital image size in pixels and photo print size, ... +19
	Сryptography   Gravity Falls Author's symbol substitution cipher decoder,   Index of Coincidence,   Tips and tricks #10: Files, long calculation mode,   Calculating the partial derivative by its definition,   Malthusian equation, ... +83
Study 419
	Astronomy   Dates of the beginning and end of polar night and polar day at a given latitude,   Declination and maximum altitude of the Sun above the horizon on a given date,   Zero Shadow Day,
	Chemistry   pH of a solution calculator,   Molarity to molality and vice versa,   Peptide calculator,   Molarity calculator,   Peptides dissolution calculator., ... +20
	Math   Student t-distribution,   Tips and tricks #9: Big numbers,   Logarithm Calculator,   Volume of geometric shapes,   The Newton Polynomial Interpolation, ... +309
	Physics   p-t Graph Analysis,   Altitude Pressure Calculator,   The Speed of Sound Calculator for Ideal Gases,   Dew Point Calculator,   Humidification Load Calculator - Find the Perfect Humidifier, ... +61