一亿 (yīyì): one hundred million

Meanings

1 one hundred million
2 100,000,000

Characters

一

Examples

中国有十四亿人口。

Zhōngguó yǒu shísì yì rénkǒu.

China has 1.4 billion people.

这个项目的预算是一亿元。

Zhège xiàngmù de yùsuàn shì yīyì yuán.

The budget for this project is 100 million yuan.

Tips

mistakes

Chinese large numbers group differently from English: 一亿 = 100 million (not 1 billion). The Chinese system goes 万 (10K) → 亿 (100M) → 兆 (trillion), while English goes thousand → million → billion. This causes frequent translation errors.