Direct Variation Calculator

Your details

Select which quantity you want to calculate.
The proportionality constant in y = kx.
The independent (input) variable.
Result
15

The solved unknown value.

Constant of variation (k)3
Equationy = 3 * 5 = 15
15 y97.7% below · x

y = 15 when x = 5 and k = 3.

  • Because y = kx, doubling x to 10.0000 would double y to 30.0000.
  • Halving x to 2.5000 would halve y to 7.5000.
  • The ratio y/x is always 3 for this relationship, no matter the x value.

Next stepSwitch to "Find K" mode to derive the constant from any two known values.

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