🧠 Train/Test Split Calculator

Properly splitting your dataset into training and testing sets is critical in machine learning to evaluate your model’s real-world performance. This calculator lets you enter your total number of data samples and select your desired training ratio (e.g. 70/30, 80/20, or custom) to determine how many samples should go into each split.

Using this tool ensures you’re not just guessing. Whether you’re validating a classification model or building regression pipelines, splitting data correctly avoids overfitting and ensures reliable evaluation. No programming or data wrangling required — just input and go.