# All online calculators

- Week days calculator
The calculator counts number of week days between two selected dates.

- Week number of a given date
Week number of a given date. Europe (ISO 8601) standard method, US method and simple numeration method.

- Weighted moving average
Weighted moving average calculation by candles

- When it becomes profitable to pay the tax as a sole proprietor?
The calculator allows you to compare the taxes paid by an sole proprietor in the simplified taxation system and the individual.

- When to drive after drinks?
Calculates time weathering of alcohol in the blood to normal

- Wind Chill Index
This online calculator computes Wind Chill Index using Wind Chill Formula from Environment Canada

- Wind energy and wind power
This online calculator computes kinetic energy of wind and wind power

- Wordpress plugin
With Planetcalc plugin for Wordpress you can easily insert any planetcalc calculator in your wordpress-based site or blog pages.

- Z-score / Standard score
This online calculator computes the standard score of a raw score from the given mean of the population and the standard deviation of the population.

- Z-score from P-value
This online calculator calculates z score from p value

- Калкулатор на поени
- Сomputer algebra
Derives a formula from input formulas and input data to calculate remained parameters