Moving Average Filter Calculator

Paste your numbers and choose a window size to get the moving average series.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

This calculator applies a simple moving average (SMA) filter to a sequence of numbers: for each point, it averages that value with its neighbours across a chosen window size, sliding the window across the whole series. The result is a smoothed version of the original data with high-frequency noise damped out.

It's one of the most basic finite impulse response (FIR) filters in signal processing, and it's widely used in time-series analysis — stock price smoothing, sensor-data cleanup, audio processing — anywhere short-term fluctuations need to be filtered out to reveal the underlying trend.

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