# All online calculators

- Generator of combinations which satisfy a condition
For elements with weights this calculator can filter out all combinations where total weight is under the specified limit.

- Geometric progression
This calculator computes n-th term and sum of geometric progression

- GET request string parser
This parser break GET request string to the parameter-value pairs and decodes URL-encoded sequences, if needed

- Glue solution strength
This online calculator can be used to find out required amount of dry glue and water to get the needed solution strength

- Golden ratio
This calculator determines proportions according to golden ratio

- Gregorian calendar. Julian calendar. The calendar eras.
The calculator convers julian calendar date to gregorian calendar date taking in account the calendar era.

- Hill cipher
This calculator uses Hill cipher to encrypt/decrypt a block of text

- Hip roof calculator
This calculator will help you estimate hip roof parameters, including rafters and roof area

- Histogram
Histogram generation according to input data. The number of groups is determined by the Sturgess formula, other formulas or set manually

- Histogram group number
Sturges formula and other methods of determining the number of groups in histogram generation

- How many circles of radius r fit in bigger circle of radius R
This calculator estimates how many circles of radius r can be placed inside another circle of radius R.

- Huffman coding
This online calculator generates Huffman encoding for given frequency of occurrence of symbols.

- Humidification loads
This online calculator answers question "how to choose" humidifier, by calculating humidification requirements given initial and target relative humidity and building parameters

- Hydrostatic pressure
This online calculator can solve hydrostatic pressure problems by finding unknown value in hydrostatic equation.

- Hyperbolic functions
Calculation of hyperbolic functions

- Ideal weight calculator using Body Mass Index
- Ideal weight calculator using Paul Broca formula
Ideal weight calculator using Paul Broca formula

- Incircle of a triangle
This online calculator determines the radius and area of the incircle of a triangle given the three sides