コスパ

• Reading: コスパ
• Romaji: kosupa
• Kanji breakdown: From English 'cost performance' → コストパフォーマンス → abbreviated to コスパ
• Pronunciation: /ko.su.pa/

Meaning

Cost performance — the value or quality you get relative to the price paid, essentially 'bang for your buck.'

コスパ is the universally used abbreviation of コストパフォーマンス (cost performance). It evaluates whether something is worth its price — 'コスパが良い' means good value for money, 'コスパが悪い' means overpriced relative to quality. Unlike English 'cheap' which can sound negative, コスパが良い is entirely positive — it means smart spending. The term is used for everything from restaurants and electronics to subscription services and life choices. It is one of the most fundamental evaluation criteria in Japanese consumer culture.

Examples

1. このランチ1000円でこのボリュームはコスパ最強。 This lunch is 1,000 yen with this much food — the value is unbeatable.
2. コスパ考えたらサブスクの方がお得だよ。 If you think about cost performance, a subscription is a better deal.
3. コスパ悪いけど味は最高だからたまに行く。 The value isn't great, but the taste is amazing so I go once in a while.

Usage Guide

Context: general conversation, restaurants, shopping, social media, reviews

Tone: evaluative, practical

Do Say

• コスパ良すぎてリピ確定。 (The value is so good, I'm definitely coming back.)
• コスパで選ぶならこっちかな。 (If we're choosing by value, probably this one.)

Don't Say

• 高級レストランでコスパの話をする (Don't talk about コスパ at a high-end restaurant — it misses the point of luxury dining)

Common Mistakes

• Thinking コスパが良い means 'cheap' — it means good VALUE for the price, not necessarily low price
• Using コスパ in very formal writing — use コストパフォーマンス or 費用対効果 (hiyō taikōka) instead

Origin & History

Abbreviated from コストパフォーマンス (kosuto pafōmansu, cost performance), from English 'cost performance.' Entered mainstream Japanese vocabulary in the 2000s-2010s and is now one of the most commonly used evaluation terms in daily conversation.

Cultural Context

Era: 2000s-2010s mainstream adoption

Generation: All ages

Social background: Universal

Regional notes: Used across Japan. One of the most common evaluation terms in Japanese consumer culture, rivaled only by the newer タイパ.