How to organize a form with many fields?

1. How should the fields and labels be organized on a site or a form?
2. How big should form fields be?

How should the fields and labels be organized on a site or a form?

Takeaway: If you want users to scan a form quickly, put labels above the fields. The layout will be easier to scan because the eye will move straight down the page. However, if you want users to read carefully, put labels to the left of the fields.

How big should form fields be?

For form fields with a variable input (name or email) length but within a standard average, you should find a suitable width based on the average length of possible inputs. Studies show that those input fields typically range from 18 to 33 characters.