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`A = y/sin(kx+omegat+phi)`

Enter a value for all fields

The **Amplitude of a wave **equation computes the amplitude of a wave using the wave number(**k**), displacement of the wave(**x**), the angular frequency(`omega`), the time passed(**t**), and the phase angle(`phi`).

**INSTRUCTIONS:** Choose units and enter the following:

**(y)**Wave Displacement**(x)**Wave Distance**(k)**Wave Number (in rad/m)**(w)**Angular Frequency**(t)**Time**(p)**Phase Constant

Amplitude**(A):** The calculator returns amplitude(**A**) in meters. However, this can be automatically converted to other amplitude units via the pull-down menu.

This equation comes from the basic wave equation:

`y(x,t) = Asin(kx+wt+phi)`

where,

- y(x,t) are the parameters of the wave
- A is the amplitude
- k is the wave number
- x is the wave distance
- w is the angular frequency
- t is the time passed
- `phi` is the phase angle.

Some simple Algebra allows us to gain the equation that you see at the top of the page:

`A = y/sin(kx+wt+phi)`

Please enter the wave number in the units of radians-per-meter as it won't compute properly in different units.