Direct Variation Calculator

The direct variation calculator helps you calculate the direct proportionality between the two variables.

Enter the variables x and y to find the direct proportionality constant (k).

You can also enter any one variable and direct proportionality constant to calculate the remaining variable.

Direct variation is a phenomenon where two quantities change together and depend on each other.

Direct variation happens when two variables maintain a constant ratio, meaning that changes in one variable directly impact the other. This relationship is denoted by the equation y = kx, where k represents the constant of variation.

Direct variation formula and calculator

You might also want to determine the diamond problem values or find out the partial sum.


  • Intro to direct & inverse variation (video) | Khan Academy. (n.d.). Khan Academy.
  • Direct Variation. (n.d.). Direct Variation.

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