Best way to show historical information of form fields?

1. How long should form fields be?
2. How big should text fields be?
3. How wide should a form be?

How long 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.

How big should text fields be?

A rule of thumb is 45–57px for a touch target, but for mobile that often result in fields which look obnoxiously large. Sizing input fields between 32px and 40px in height makes your field finger-friendly and not very large at the same time.

How wide should a form be?

A 45 to 75 characters width is considered as good, with 66 characters being optimal.