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2D Bin Packing Problem Solver
This online calculator tries to solve an offline two-dimensional (2D) bin packing problem using Maximal Rectangles heuristic algorithm
365 days calendar date to Gregorian date
The calculator converts a date in 365 days calendar (Armenian, Ancient Egyptian) to a date in Gregorian calendar
3d coordinate systems
Transforms 3d coordinate from / to Cartesian, Cylindrical and Spherical coordinate systems.
A1Z26 cipher
A1Z26 is very simple direct substitution cypher, where each alphabet letter is replaced by its number in the alphabet.
A2Z52 encoder/decoder
A2Z52 is a very simple direct substitution cipher, where each alphabet letter is replaced by its number in the alphabet.
ABV (Alcohol by volume)
This online calculator estimates alcohol by volume (abv) based on original and final specific gravity values.
Acceleration of gravity
Acceleration of gravity calculation on the surface of a planet. It's possible to calculate the acceleration above the surface by setting the sea level. But it won't be possible under the surface - this is a wrong formula.
Accretion and discounting of annuity payments
Acid-base titration curves
This online calculator builds theoretical titration curves for monoprotic acids and bases
Adjusting picture/pixel sizes proportionally
This online calculator adjusts the second dimension of a picture/video, given the new first dimension, keeping the original proportions
Age
Calculate your age with minute precision
Age calculator
This calculator displays age of a person in years, months, days, and total days, given the birthday date
Ahargana day count to the Gregorian date
The calculator converts heap of day since the Kali Yuga beginning day to the Gregorian date
Air Flow Calibration
This calculator is used to set the air flow rate through a grain bin equipped with an aeration fan. It assumes that the air flow can be controlled with baffles, spill gates or variable fan speed. It requires an air flow meter or anemometer. This calculator determines the air speed needed at the top collar of bin in order to achieve the desired air flow rate (CFM/bu Cubic Feet per Minute per bushel).
Alcohol amount in the aqueous alcohol solution
Defines the mass and volume concentration of ethanol in the solution of two liquids with different levels of alcohol.
Alphabet
The calculator displays all the letters of a given language.
Altitude of a triangle
This online calculator computes the altitude length of a triangle, given the lengths of sides of a triangle.
Altitude Pressure
This calculator uses barometric formula to find out the pressure at the given altitude
Analytical performance indicators
Calculation of derived analytical indicators of time series
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