Dataset Size Calculator
A practical Data Science & Machine Learning calculator with validated inputs and transparent results.
Free toolValidated inputsGlobal use
Calculator
Enter your values and calculate.
Ready. Enter values and select Calculate.
Results are mathematical/statistical calculations and should be interpreted in the context of your dataset and model. This tool does not train a machine-learning model.
How to use this calculator
What to enter
Enter or select the following as requested: Rows; Features. Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The output describes a data-preparation, sampling, validation, or model-configuration step using the options entered. Check the dataset size, random seed, split proportions, feature ranges, and whether preprocessing is fitted only on the training data to avoid data leakage.
When to use it
Use this to prepare data or configure a machine-learning workflow. Match the method to the task and validate it on held-out data; settings that work for one dataset may not generalize to another.