# All online calculators

- Barometric leveling
- 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.

- Battery discharge time depending on load
This article contains online calculators which can calculate discharge times for 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.

- Beaufort scale
Conversion between wind speed measurement units including Beaufort numbers, km/h, m/s, mph, fps.

- 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.

- Binary Coded Decimal (BCD)
This online calculator converts decimal number to binary code in BCD notation and vice versa

- Binary numbers calculator
This calculator supports common mathematical operations over binary numbers

- Binomial distribution, probability density function, cumulative distribution function, mean and variance
This calculator calculates probability density function, cumulative distribution function, mean and variance of a binomial distribution for given n and p

- Bisection method
The bisection method in mathematics is a root-finding method that repeatedly bisects an interval and then selects a subinterval in which a root must lie for further processing. The method is also called the interval halving method.

- Body fat calculator - YMCA formula

- Boiling point dependence on the altitude above sea level
This online calculator finds the water boiling temperature given the atmospheric pressure in millimeters of mercury.

- CaCl2 ppm to chlorides WPS ppm converter
This online calculator converts given CaCl2 ppm concentration into chlorides water phase salinity ppm concentration

- Caesar cipher
Calculator encrypts entered text by using Caesar cipher. Non-alphabetic symbols (digits, whitespaces, etc.) are not transformed.

- Calculation of the volume by weight
Calculation of the volume and parameters of regular geometric figure by given mass using density of matter reference book.

- Calculation of weight by volume
Calculating the weight by the volume of material with matter density reference book

- Calculation of weight by volume
Calculating the weight by the volume of material with matter density reference book

- Calculator of area of a triangle using Hero's formula