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Average Temperature, °R Average temperature in the pipeline |
Average wage сalculation (for Russia) The calculator calculates the average wage, according to the decree of the Russian Federation government dated December 24, 2007 "On specifics of calculation of average wages" in edition of Russian Federation Government Resolution dated November 11, 2009. |
Azimuth and solar elevation angle Calculation of azimuth and solar elevation angle by given the coordinates and time of observation. It's possible to input coordinates manually or by selecting from the directory of cities. |
Aztec Numerals: Decimal to Aztec Number Converter Translate decimal numbers into Aztec numbers using this calculator. The Aztec numeral system is based on 20 and uses specific symbols for each power of 20. |
Baffle Plate Gap Calculator Use this to determine the baffle plate gap in a tank based on your throat size. Measure bell end depth using something the same width as your baffle plate or enter a zero if there is no belled end.

The drawing is looking from the top down. |
Ball Volume to Radius Calculator This calculator calculates the radius of a ball from its volume. |
Balloon lifting force Online calculator for solving problems related to balloon lifting force. It allows you to find the mass of the balloon shell, or the mass of the payload, or the required hot air temperature, or the volume of the balloon, from other known values. |
Bank card number validation The calculator checks a bank card number using Luhn algorithm, it also determines the card issuer according to Issuers handbook. |
Barlow formula Barlow´s Formula is used to calculate the pipe pressure considering its diameter, wall thickness, and hoop stress (in the pipe material). |
Base 64 encoding and decoding The calculators encode string to base64 string and decode back to original string. Special characters (+/) , generally produced by base64 algorithm, can be replaced by the data provided in additional parameter. |
Batch conversion from one number system to another Batch conversion of a list of numbers from one positional number system with the specified base, to another with the specified base. |
Battery discharge time depending upon load This article contains online calculators that can work out the discharge times for a specified discharge current using battery capacity, the capacity rating (i.e. 20-hour rating, 100-hour rating etc) and Peukert's exponent. |
Bayes’ theorem This online calculator calculates posterior probabilities according to Bayes’ theorem. |
BCD to Decimal Convertor Converts a BCD value into its decimal equivalent.

Digits of the decimal number are identified by grouping four BCD digits/bits.

For example: 0100 1001 => 49 |
Beaufort scale Conversion between wind speed measurement units including Beaufort numbers, km/h, m/s, mph, fps. |
Bell triangle This online calculator constructs the Bell triangle for the given number of rows. |
Bernoulli trials table This online calculator calculates probability of k success outcomes in n Bernoulli trials with given success event probability for each k from zero to n. |
Bézout coefficients This online calculator computes Bézout's coefficients for two given integers, and represents them in the general form |
Bin packing problem Calculator solves bin packing problem by different heuristic algorithms. Created at the request of the user. |
Bin packing problem 2 Calculator solves bin packing problem with different heuristic algorithms and gives you a best. Created at the user's request. |