# All online calculators

- Traveling Wave Relationship
The relationship of the wave frequency, wavelength and propagation velocity.

- Triangle angles for given triangle sides
This calculator computes triangle angles for given triangle sides using cosine law

- Trigonometric functions
This online calculator computes the values of elementary trigonometric functions, such as sin, cos, tg, ctg, sec, cosec for an angle, which can be set in degrees, radians, or grads.

- Triple exponential smoothing
Description and examples of triple exponential smoothing

- Two sample t-Test
The calculator to perform t-Test for the Significance of the Difference between the Means of Two Independent Samples

- Unique words count
The calculator counts number of unique words in a given text. It also count number of repeated words. It also can remove all the repetitions from the text.

- Universal High School GPA Calculator
This online calculator lets you figure out your high school GPA. Even more, it provides you with editable conversion tables and weights, so you can tweak calculations in case you need it.

- Unused leave compensation at dismissal
Calculates the payment of compensation for unused leave, envisaged by the labor legislation of the Russian Federation to the dismissal of an employee.

- URL-encoded string decoder
This converter decodes URL-encoded string (percent-encoded characters). It converts reserved characters as well as UTF-8 characters

- Usable volume of tank
This calculator find usable volume of tank, taking into account wall thickness

- Use of Time Summary
This calculator summarizes time for different activities entered into table

- Values of one-variable function
This online calculator calculates values of one-variable function given function formula and set of variable values

- VARIANT DATE to datetime string
This online calculator converts VARIANT DATE (double) value to datetime string.

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

- VOIP call bandwidth
The calculator works out bandwidth required to handle given number of VOIP calls with given audio codec.

- Volume of body given the buoyant force
This calculator computes the volume of body given the buoyant force and density of the body, assuming that the buoyant force equals gravity force.

- Volume of geometric shapes
Calculates volume of geometric shapes: cube, prism, pyramid, frustum, cone, cylinder, sphere, ellipsoid.

- Volume of liquid in a tilted tank with hemispherical heads
Calculates volume of liquid in an inclined cylindrical tank with hemispherical ends.

- Volume of the cylinder segment
Calculates volume of the cylinder segment

- Volume of the hemisphere cut at an angle
Volume of hemisphere asymmetrically cut by a flat plane under a given angle.