Which input type is commonly used for numeric values in forms?

The input type designated for numeric values in forms is specifically designed to accept only numbers. This is beneficial for data validation and user experience. When the input type is set to "number," it allows users to enter numeric values while optionally providing features such as spin buttons for increasing or decreasing the value. It also enables the browser to enforce constraints like specifying minimum and maximum values, often displaying the relevant keyboard layout on mobile devices that makes it easier for users to enter numbers.

Furthermore, using the number input type allows for proper validation of the data before form submission, ensuring that only valid numeric values are accepted. If a user tries to input non-numeric characters, the form will typically display an error message, preventing the submission of invalid data.

In contrast, the text input type does not limit the input to numbers, allowing any character to be entered. Other input types, like email and tel, serve very specific purposes related to email addresses and telephone numbers, respectively, but do not function well for generic numeric input. Thus, "number" is the most appropriate choice for fields where only numeric values are needed.