Vietnamese Numbers: How to Count from 0 to 1 Billion

Vietnamese Numbers from 0 to 10

These eleven words are the building blocks for every Vietnamese number. Learn them with their tone marks. A missing or incorrect mark can change the word you are saying.

How to Count from 11 to 99

From 11 to 19, place the final digit after mười. From 20 onward, say the tens digit, mươi, then the final digit. The spelling change from mười to mươi matters.

Use the full forms while learning. In fast speech, you may hear mươi omitted when the context already makes the number clear.

When Một, Bốn, and Năm Change

The final digits 1, 4, and 5 have special forms in compound numbers. The changes happen after a tens value, not whenever the digit appears.

Hundreds and the Missing Tens Place

Trăm means "hundred". When the tens place is zero, speakers commonly insert linh in the North or lẻ in Central and Southern speech. Both forms connect the hundreds to the final digit.

A complete reading of a large number may include không trăm for a missing hundreds place. Everyday speech often shortens this when the scale is already clear.

Thousands, Millions, and Billions

Split a long number into groups of three digits from the right. Read each group like a number below 1,000, then add its place word. The main words are nghìn or ngàn, triệu, and tỷ.

Northern, Central, and Southern Number Differences

The counting system and written digits are the same across Vietnam. The clearest regional differences are word preferences for a missing tens place and for 1,000. These are tendencies, not strict borders.

A northern speaker will understand một trăm lẻ năm. A southern speaker will understand một trăm linh năm. The same is true of nghìn and ngàn.

Pronunciation varies more than the number-building rules. Pick one accent for speaking practice, but learn to recognize both vocabulary pairs.

How to Read Prices and Vietnamese Đồng

Read a price as an ordinary large number, then add đồng. In real transactions, speakers often omit nghìn, ngàn, or đồng once the scale is obvious. Learn the full reading first.

Phone Numbers, Ages, Dates, and Other Digit Strings

First decide whether the digits express a quantity or identify something. A quantity uses place value. Phone numbers use separate digits, while ages and dates follow their own labels.

Pauses can divide a phone number into readable groups, but each digit keeps its own name. Do not turn the whole string into one cardinal number.

Counting Nouns with Classifiers

Vietnamese often places a classifier between a number and a noun. The safe beginner pattern is number + classifier + noun. Classifier choice depends on what you are counting.

Not every noun needs an extra classifier in every structure. Learn complete noun phrases instead of forcing cái into every count.

Ordinal Numbers

Cardinal numbers count quantities. Ordinal numbers mark a position such as first, second, or third. Vietnamese usually forms them by placing thứ before the number.

Common Vietnamese Number Mistakes

Most counting errors come from applying a real rule in the wrong place. Check the tens position, keep the tone marks, and decide what kind of number you are reading.

Vietnamese Numbers Quick Reference

Start with the place value, then apply any special final digit. This table covers the patterns you will use most often.

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