Online calculator for linear interpolation and extrapolation. Given two (x, y) pairs and an additional x or y, compute the missing value.

An online linear interpolation calculator helps to find the interpolated values for the data points on a line or a curve. The calculator plots the interpolated point on a line and shows a step-by-step …

Our free online Interpolation Calculator allows you to quickly and accurately estimate unknown values in your dataset, whether you’re working with simple linear or complex polynomial …

Free online interpolation calculator for linear and polynomial interpolation. Calculate missing data points with our fast, accurate mathematical tool.

Sep 12, 2025 · Enter two points along a line (X1,Y1) (X2,Y2), as well the final X (X3) coordinate to interpolate the final Y position of that point. Linear interpolation uses the known coordinates …

Use this free Linear Interpolation Calculator to estimate missing values between two known data points. Powered by mathematically precise formulas, it delivers fast, accurate, and reliable …

Professional-grade interpolation calculator with linear, polynomial, and cubic spline methods. Interactive visualization, step-by-step solutions, and CSV export for engineers and scientists.

Free linear interpolation calculator for estimating values between two points. Calculate interpolated values, slope, and equations with step-by-step solutions for mathematics and …

Quickly find values between known data points using our linear interpolation calculator. Input your data, get precise estimates in seconds.

This linear interpolation calculator is a handy tool for finding points on a certain line — determined either by two coordinates or directly by the slope-intercept form.