ConvertersLesson 322Free preview

Convert Weight

This lesson is part of How To · All levels

Summary

The weight converter converts values between kilograms, grams, pounds, and ounces through JavaScript. The conversion formula is applied after the input value is read as a number, and the result is written to the output element. Always validate the input so that the empty or non-number value does not result in misleading output.

Key points

Use parseFloat to convert input text into numbers
One kilogram is equal to 2,20462 pounds.
One pound is equal to 0.453592 kilograms.
Handles the empty value or NaN before counting
Display the units on the result so as not to be ambiguous

Full lesson

Code examples and quizzes

Full lessons, code examples, and quizzes are available to subscribers. 5 questions.