Chinese Number Converter

How the Chinese Number System Works

The Chinese number system is a base-10 positional system, much like the Arabic numeral system used worldwide. However, Chinese expresses numbers by combining digit characters with explicit place-value characters, making the underlying mathematics transparent in a way that English number words do not. Where English uses opaque terms like "eleven" and "twelve" that give no hint of their relationship to ten, Chinese uses 十一 (literally "ten one") and 十二 ("ten two"). This regularity extends throughout the entire number system, making Chinese numbers easier to learn and less prone to confusion. If you are just getting started with Chinese, our pinyin guide for beginners can help you read the pronunciations shown throughout this page.

The basic building blocks are the ten digit characters: 零 (zero), 一 (one), 二 (two), 三 (three), 四 (four), 五 (five), 六 (six), 七 (seven), 八 (eight), and 九 (nine). These combine with the place-value characters 十 (ten), 百 (hundred), and 千 (thousand) to form any number up to 9,999. For larger numbers, Chinese introduces 万 (wàn, ten thousand) and 亿 (yì, hundred million), which serve as higher-order grouping units. Numbers one through ten are among the first words taught at the HSK 1 level, making them an ideal starting point for any learner.

Why Chinese Numbers Are More Logical Than English

Linguists and educators have long noted that the Chinese number system is more transparent and regular than its English counterpart. In English, the numbers from eleven to nineteen are irregular: "eleven" and "twelve" bear no obvious relation to "one" and "two," while "thirteen" through "nineteen" reverse the order (saying the ones digit before the tens digit). The decades ("twenty," "thirty," "fifty") are also somewhat irregular.

Chinese has none of these irregularities. The number 11 is 十一 ("ten one"), 12 is 十二 ("ten two"), 20 is 二十 ("two ten"), and 99 is 九十九 ("nine ten nine"). Research has shown that this transparency gives Chinese-speaking children an advantage in early mathematics, as the language itself makes place value and arithmetic relationships explicit. When a child says 二十三, they are effectively saying "two tens and three," reinforcing the concept of place value with every utterance.

The 二 (èr) vs 两 (liǎng) Distinction

One aspect of Chinese numbers that often confuses learners is the distinction between 二 (èr) and 两 (liǎng), both meaning "two." The rule is straightforward once you learn it:二 is the abstract numeral used in counting sequences, phone numbers, math, and when stating the digit itself. 两 is the quantifying word used before measure words when you are specifying a quantity of something. Mastering tones is essential for distinguishing these words aloud — try our Pinyin Tone Trainer to practice.

For example, you would say 两个苹果 (two apples) using 两 before the measure word 个, but you would say 二十 (twenty) and 第二 (second/the second one) using 二. Before large place values like 百 (hundred), 千 (thousand), and 万 (wàn, ten thousand), both 二 and 两 are used in different regions, though 两 is more common in spoken Mandarin. Understanding when to use each form is an important part of sounding natural in Chinese and is covered in depth at the HSK 2 level.

Numbers in Daily Life: Menus, Prices, and Addresses

Numbers are everywhere in Chinese daily life. On restaurant menus, prices are typically written in Arabic numerals but spoken in Chinese. A dish priced at 38 yuan would be spoken as 三十八块 (sān shí bā kuài). When bargaining at markets, you will hear rapid-fire number exchanges. Learning to hear and produce Chinese numbers quickly is essential for practical communication. For more real-world phrases, see our Chinese for travel guide.

Addresses in China follow a large-to-small order (country, province, city, district, street, building number, floor, apartment number), and all the numerical components use Chinese numbers in spoken form. Phone numbers are typically read digit by digit: the number 138-1234-5678 would be spoken as 一三八 一二三四 五六七八, with each digit said individually. Notably, the digit 1 in phone numbers is often pronounced as 幺 (yāo) instead of 一 (yī) to avoid confusion with 七 (qī) in noisy environments.

Lucky and Unlucky Numbers in Chinese Culture

Number symbolism plays a significant role in Chinese culture, influencing everything from wedding dates to business decisions. The number 8 (八, bā) is considered the luckiest number because it sounds like 发 (fā), meaning wealth or prosperity. Businesses pay premium prices for phone numbers and license plates containing multiple eights. The Beijing Olympics famously began at 8:08 PM on August 8, 2008 (08/08/08).

Conversely, the number 4 (四, sì) is widely avoided because it sounds like 死 (sǐ, death). Many buildings skip floors containing the digit 4 entirely, jumping from the 3rd floor to the 5th, and from the 13th to the 15th. Some buildings omit every floor number containing 4, meaning there is no 4th, 14th, 24th, 34th, or 40th through 49th floors. This avoidance, known as tetraphobia, extends to phone numbers, license plates, and even apartment prices.

The number 6 (六, liù) symbolizes smooth progress and is considered auspicious, especially in sequences like 66 or 666. The number 9 (九, jiǔ) sounds like 久 (jiǔ, long-lasting) and is associated with permanence, making it popular for weddings and romantic gestures. The combination 99 or 999 can represent "forever." Understanding these cultural associations is helpful for anyone planning to travel in China or do business there.

Special Number Meanings in Modern Chinese Internet Culture

Modern Chinese internet and texting culture has created a rich vocabulary of number-based slang, where digits are chosen for their phonetic similarity to Chinese words. The most famous example is 520 (wǔ èr líng), which sounds like 我爱你 (wǒ ài nǐ, "I love you"). May 20th (5/20) has become an unofficial Valentine's Day in China, and 520 yuan is a popular monetary gift amount for couples.

The number 666 has a completely different meaning in Chinese than in Western culture. Rather than any negative connotation, 666 (liù liù liù) is internet slang for "awesome" or "impressive," derived from the gaming term 溜 (liù, meaning skilled). You will see 666 in chat messages and live-stream comments as praise. The number 88 (bā bā) sounds like "bye bye" and is used as a casual farewell in text messages. Other common number codes include 1314 (yī sān yī sì), meaning "one life one world" or "forever," and 233, which represents laughter (derived from an emoticon index on a popular Chinese forum). To understand why these sound-alike codes work, a solid grasp of Chinese tones is essential.