Online calculator catalog
Life 121
	Calendar   Gregorian date to Hindu mean solar calendar,   365 days calendar date to Gregorian date,   Days between dates. The historical version.,   Coptic calendar,   Ethiopian calendar, ... +14
	Date and Time   Dynamical Time difference,   Timeline Midnight Converter,   How much time between two dates?,   Julian and Gregorian calendars,   How many months are there between two dates?, ... +60
	Health   Nagler's Ideal Weight Calculator,   Lorenc Ideal Weight Calculator,   The basal metabolic rate,   Brunhard's formula ideal weight calculator,   Determination of the baby's sex, ... +13
Professional 325
	Computers   Gray code converters,   Decision tree builder,   Unicode scripts and blocks,   Remove duplicates,   Line Reverser, ... +60
	Engineering   Trapezoid - Shaped Throat Opening,   Throat Calculator for Overlapping Cylindrical Tanks,   Wallpaper calculator,   Weight-to-Volume Calculator,   Heat Index Calculator, ... +34
	Finance   Accrual-Based Compound Interest Calculator,   Family budget planner,   Simple Interest,   Tax-Adjusted Deal Profitability Calculator,   When it becomes profitable to pay the tax as a sole proprietor in Russia?, ... +30
	Image processing   Image color set,   Watercolor Filter,   Image Flip & Rotate,   Color image to black and white image,   Jpeg image meta-data, ... +6
	Navigation   Compass, magnetic and true course calculator,   Course angle and the distance between the two points on loxodrome (rhumb line).,   Prospect distance from the ground and line of sight distance between two observers,   City objects observation,   Earth Radius by Latitude (WGS 84), ... +15
	Statistics   Chande momentum oscillator indicator,   Hypergeometric Distribution. Probability density function, cumulative distribution function, mean and variance,   Analytical performance indicators,   Seasonal fluctuations. Seasonal indices. Method of simple averages,   Text fitness, ... +32
	Telecommunications   Morse Code Converter: Translate and Decode Messages,   PBX channel number calculation,   Morse-ify and Modify.,   Number of agents in a call center, ... +1
	Units converters   Speed Converter,   Expressing length through different units,   Inches to Pixels and Pixels to Inches Converter,   Exotic length units,   Degrees-minutes-seconds to decimal degrees conversion and vice versa., ... +19
	Сryptography   Simple interest - floating interest rate,   Conversion of share to percentage of total,   Tips and tricks #10: Files, long calculation mode,   Substitution cipher decoder,   The Verhulst model, ... +83
Study 419
	Astronomy   Zero Shadow Day,   Dates of the beginning and end of polar night and polar day at a given latitude,   Shadow length,
	Chemistry   Molarity to molality and vice versa,   Molar volume,   Fertilizing,   pH of a solution calculator,   Molar Mass Calculator, ... +20
	Math   Collinearity of vectors in 2d space,   Complex numbers,   Polynomial factorization modulo p,   Rectangular Area Calculator,   nth root algorithm, ... +309
	Physics   Density of air as a function of pressure and temperature,   The waves and the wind. Wave height statistical forecasting,   Percentage of metals in the alloy,   Lifting force of a helium-filled balloon,   Capacitor in Direct Current Circuit, ... +61