# Loss curve > A plot of loss as a function of the number of training iterations. Loss curves can help you determine when your model is converging or overfitting.[^1] A plot of [loss](https://wiki.g15e.com/pages/Loss%20(machine%20learning.txt)) as a function of the number of training [iterations](https://wiki.g15e.com/pages/Iteration%20(machine%20learning.txt)). Loss curves can help you determine when your model is [converging](https://wiki.g15e.com/pages/Convergence%20(machine%20learning.txt)) or [overfitting](https://wiki.g15e.com/pages/Overfitting.txt).[^1] Loss curves can plot all of the following types of loss:[^1] - [Training loss](https://wiki.g15e.com/pages/Training%20loss.txt) - [Validation loss](https://wiki.g15e.com/pages/Validation%20loss.txt) - [Test loss](https://wiki.g15e.com/pages/Test%20loss.txt) ## See also - [Generalization curve](https://wiki.g15e.com/pages/Generalization%20curve.txt) ## Footnotes [^1]: https://developers.google.com/machine-learning/glossary#loss-curve