Use this interpolation calculator to accurately estimate unknown values within the range of a set of data points.
How to Use the Interpolation Calculator
To use this calculator, enter the known points (x0, y0) and (x1, y1) along with the value of x for which you want to find the interpolated y value. Click on “Calculate” to get the result. Make sure that all fields are filled with numerical values before calculating.
How It Works
The calculator uses linear interpolation to estimate the value of a function for any value between two known values. Linear interpolation assumes that the change between two values is linear and calculates the missing data point accordingly.
Calculation Formula
The formula used for linear interpolation is:
y = y0 + [(x – x0) * (y1 – y0)] / (x1 – x0)
Limitations
This calculator assumes that the two known points are distinct and that x1 is not equal to x0; otherwise, division by zero would occur. Additionally, linear interpolation provides an approximation that may not be accurate if the actual data points do not follow a linear pattern.
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