Translation guide
How to express that something is useful, helpful, or of practical value in Japanese.
Describing something as useful, handy, or convenient in everyday situations.
The most common and versatile word for 'useful' or 'convenient'. Used for tools, services, locations, etc.
This app is very useful.
It's convenient living near the station.
Literally 'to stand in a role', meaning 'to be useful' or 'to be of help'. Often used for information, skills, or people.
This dictionary is really useful.
A more formal or written term for 'useful' or 'beneficial'. Often used in technical or academic contexts.
This research yielded very useful results.
Means 'convenient' or 'handy', often implying something is treasured for its usefulness. Slightly old-fashioned or literary.
This small knife is very handy.
Emphasizing the practical worth or effectiveness of something.
Describing a person or action that is helpful or provides assistance.
Evaluating whether an idea, suggestion, or feedback is useful.
Means 'to be informative' or 'to serve as a reference'. Commonly used when an idea or opinion is helpful for consideration.
Your opinion was very useful.
This book is informative/useful.
便利 (benri) emphasizes convenience and ease of use, often for objects or locations. 役に立つ (yaku ni tatsu) emphasizes practical helpfulness or utility, often for information, skills, or people. For example, a smartphone is 便利, while a piece of advice is 役に立つ.
This smartphone is convenient/useful.
This advice is useful.
The English noun 'usefulness' often sounds unnatural if directly translated into Japanese. Instead, use adjectives like 便利な or 役に立つ, or rephrase with 実用性 or 有用性 in formal contexts. For example, 'the usefulness of this tool' is better expressed as この道具の便利さ or この道具の有用性 rather than a forced noun form.
The usefulness of this tool is amazing.
His advice was useful.
It's a product that emphasizes usefulness.
The usefulness of this technology is widely recognized.
He is a useful member of the team.