Feature Scaling Calculator
Scale raw feature values using min-max normalization, z-score standardization, robust scaling, and max-abs normalization for machine learning preprocessing.
Inputs
Results
Min-Max Scaled Value
0.5
Z-Score (Standard Scaled)
0
How to Use This Calculator
- Enter the feature values or paste summary statistics (min, max, mean, std).
- Select the scaling method: standardization (Z-score), min-max normalization, or robust scaling.
- Review scaled feature range and distribution.
- Use standardization for distance-based algorithms (KNN, SVM) and min-max for neural networks.
- Always fit scaling parameters on training data only -- transform test data using training parameters.
How the result changes with Maximum Value
| Maximum Value | Min-Max Scaled Value | Z-Score (Standard Scaled) |
|---|---|---|
| -800,000 | -0 | 0 |
| -300,000 | -0 | 0 |
| 300,000 | 0 | 0 |
| 800,000 | 0 | 0 |
What each input means
- Raw Value
- The original unscaled feature value you want to transform.
- Minimum Value
- The minimum observed value in your feature column.
- Maximum Value
- The maximum observed value in your feature column.
- Mean
- The arithmetic mean (average) of your feature column.
- Standard Deviation
- The standard deviation of your feature column. Used for z-score standardization.
What each result means
- Min-Max Scaled Value
- Value scaled to [0, 1] range using (x - min) / (max - min).
- Z-Score (Standard Scaled)
- Number of standard deviations from the mean: (x - mean) / std.
- Robust Scaled Value
- Scaled using range instead of std dev, less sensitive to outliers.
- Max-Abs Normalized
- Value divided by the maximum absolute value in the range.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersRaw Value = 50, Minimum Value = 0, Maximum Value = 100, Mean = 50 = 5 input(s) provided
- Calculate Min-Max Scaled ValueMin-Max Scaled Value0.5 = 0.5
- Calculate Z-ScoreZ-Score0 = 0
- Calculate Robust Scaled ValueRobust Scaled Value0 = 0
- Calculate Max-Abs NormalizedMax-Abs Normalized0.5 = 0.5
Engine last updated . Checked against 1 independently-derived test — how we verify calculators.
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