Online calculator catalog
Life 120
	Calendar   Coptic calendar,   Ahargana day count to the Gregorian date,   Days between dates. The historical version.,   Roman calendar,   Armenian calendar, ... +14
	Date and Time   Time. Total sum,   Release Date Countdown gadget,   Date calculator,   Sun position at a given date. Azimuth and elevation table.,   Date and number of working days (for Russia), ... +59
	Health   Strength of alcoholic cocktail,   Daily Calorie Rate,   Determination of the baby's sex,   Ideal Weight Calculator,   Body proportionality, ... +13
Professional 247
	Computers   Ancient PixelArt: CompuServe RLE file viewer,   Check Digit Mod 11 (ISBN-10 check digit),   IP Address and Subnet Mask Calculator (IPv4),   Audio Tone Generator Calculator,   Conversion of fractional numbers between numeral systems, ... +60
	Engineering   Tank Volume Calculators,   Oval Tank Volume Calculator,   Barlow formula,   Throat Calculators,   Throat Calculator for Cylindrical Tanks, ... +32
	Finance   Tax-Adjusted Deal Profitability Calculator,   Russian Central Bank Exchange Rate Converter,   The calculation of amortization for tax purposes,   Effective Interest Rate Calculator,   Price based on running meter, ... +30
	Image processing   Watercolor Filter,   Image color set,   Image Flip & Rotate,   Jpeg image meta-data,   Digital images parameters comparison, ... +6
	Navigation   City objects observation,   Course angle and the distance between the two points on loxodrome (rhumb line).,   Fuel consumption,   Tidal gate calculator (Rule of twelfths),   Flag Semaphore Translator, ... +15
	Statistics   Events timeline,   Seasonal fluctuations. Seasonal indices. Method of simple averages,   Analytical performance indicators,   Log-normal distribution,   Text fitness (version 3), ... +27
	Telecommunications   Morse-ify and Modify.,   Number of agents in a call center,   PBX channel number calculation,   VOIP call bandwidth, ... +1
	Units converters   Conversion between imperial and metric units of area,   Imperial to Metric and Metric to Imperial measures of length converter,   Speed Converter,   The Decimal to Binary, Hexadecimal, and Octal Converter,   Expressing length through different units, ... +19
	Сryptography   Kasiski test,   Pangram checker,   Substitution cipher decoder,   Gravity Falls Author's symbol substitution cipher decoder,   Rail fence cipher, ... +12
Study 387
	Chemistry   Peptides dissolution calculator.,   ABV (Alcohol by volume),   Alcohol amount in the aqueous alcohol solution,   The Chemical Reaction Search Calculator,   Peptide dissolution calculator, ... +16
	Math   Polynomial factorization modulo p,   Number approximation as a sum of unit fractions,   Angular size, linear size, and distance,   Egyptian numbers,   First Degree Equation Solver, ... +299
	Physics   Direct measurement error analysis,   p-t Graph Analysis,   Acceleration of gravity,   Coulomb's Law Calculator - Solve for Force, Charge, or Distance,   Complementary color, ... +49