Online calculator catalog
Life 121
	Calendar   Fixed date to Gregorian date,   Roman calendar,   Gregorian to fixed date,   Armenian calendar,   Ethiopian calendar, ... +14
	Date and Time   Date by the Julian Day Number,   City Timezone Converter,   How many workdays between two dates?,   World Time Converter,   Date weeks out or before, ... +60
	Health   Pregnancy Due Date Predictor,   Ideal weight calculator using Paul Broca formula,   Proportional Body Calculator: McCallum's Formula,   Lorenc Ideal Weight Calculator,   Weathering of alcohol concentration in the blood, ... +13
Professional 322
	Computers   LL1 grammar analysis. Yet another top-down parser generator.,   Huffman coding,   Check Digit Mod 11 (ISBN-10 check digit),   Palette generator,   Symbol Generator, ... +60
	Engineering   Throat Calculators,   Laminate flooring. The calculation of the number of planks,   Baffle Plate Gap Calculator,   Square Door Tank Volume,   Calculating the parts given the ratio and total amount, ... +34
	Finance   Mortgage loan early repayment date,   Interest on the deposit and inflation,   Simple Interest Daily Rate,   Progressive tax,   Annuity Calculator, ... +30
	Image processing   Box filters for image processing,   Color to Grayscale Conversion,   Color image to black and white image,   Morphological filters,   Watercolor Filter, ... +6
	Navigation   Compass Points,   Points of the compass,   Course angles and distance between the two points on the orthodrome(great circle),   Russia's regional registration plates,   Fuel consumption, ... +15
	Statistics   Z-score from P-value,   Text fitness,   Histogram Builder,   Mann-Whitney test,   Weighted moving average, ... +32
	Telecommunications   PBX channel number calculation,   Number of agents in a call center,   Morse Code Converter: Translate and Decode Messages,   VOIP call bandwidth, ... +1
	Units converters   Height in the old Russian system of measures,   Nautical Units Converter,   Conversion between imperial and metric units of area,   Russian Length Unit Converter,   The Decimal to Binary, Hexadecimal, and Octal Converter, ... +19
	Сryptography   Caesar cipher with numbers,   Compound interest deposit term calculator,   Compound interest including commissions on the loan amount,   Simple interest rate calculator,   The Verhulst model, ... +80
Study 419
	Astronomy   Declination and maximum altitude of the Sun above the horizon on a given date,   Zero Shadow Day,   Shadow length,
	Chemistry   Dilution of solutions,   Peptide calculator,   Molar volume,   Raoult's Second law and the freezing temperature.,   Alcohol amount in the aqueous alcohol solution, ... +20
	Math   Noisy function generator,   Heron's formula calculator,   Angle between two vectors,   Sine wave calculator,   Matrix Transpose, ... +309
	Physics   Thermodynamics – calculator for solving mixing problems,   CaCl2 ppm to chlorides WPS ppm converter,   Average Compressibility Factor, (dimensionless),   Energy Unit Converter: Joules, Kilowatt-Hours, Kilogram-Force per Meter, Horsepower per Hour, Kilocalories,   The waves and the wind. Wave height statistical forecasting, ... +61