This question doesn't make sense because "thousands" is a unit of counting, while "quarter inch" is a unit of length. You can't directly convert one to the other.

To make sense of the question, we need to know what you're trying to measure in "thousands."

Here are some possibilities:

* Thousands of something else: Are you asking how many thousands of *millimeters* or *centimeters* are in a quarter inch? Or maybe you're asking about *thousands of grains of rice*? We need more context to understand what you're asking.

* A different unit: Are you thinking of a different unit of measurement, like "thousandths"? There are 4 thousandths of an inch in a quarter inch (1/4 inch = 0.25 inch = 250 thousandths of an inch).

Please clarify your question!