Linear Interpolation Calculator

Find y at x on a line.

x₁

y₁

x₂

y₂

x to find y

Interpolated y 50

Step-by-step with your numbers:

1. Values used:

2. x₁ = 0

3. y₁ = 10

4. x₂ = 100

5. y₂ = 90

6. x to find y = 50

7. Interpolated y = 50

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Linear interpolation between two points.

FAQ

Extrapolation?

Works the same way beyond the known points.