Interpolation Calculator calculates the unknown interpolated coordinate between the two known coordinates. Normally Linear Interpolation is called as Interpolation.

$$ f(x) = f(x1)+(x-x1) \frac{f(x2)-f(x1)}{x2-x1} $$x | f(x) | |

x1 | ||

x2 | ||

x | 80 |

### Explain

$$ f(14) = 100 + (14 - 10) \frac { 50 - 100 }{20 - 10} = 80 $$You can see Bilinear interpolation calculator.