Numbers & Measurements — Vietnamese Vocabulary

Core Vocabulary

Useful Phrases

Sample Dialogue

Cultural Notes

Understanding numbers and measurements in Vietnam goes beyond mere translation; it often involves cultural context, particularly around currency and quantities. The Vietnamese đồng (VND) uses very large numbers, with common denominations like 10,000 VND, 50,000 VND, and 100,000 VND.

Foreigners might initially be overwhelmed by these large figures, but it quickly becomes second nature. Prices are almost always stated in thousands or hundreds of thousands, so it’s common to hear just “mười” for 10,000 or “ba trăm” for 300,000, with “nghìn/ngàn đồng” often omitted in casual speech, especially in markets (chợ). Always clarify if unsure, for instance, by repeating the number or showing the bill.

Classifiers are crucial in Vietnamese. Unlike English, where you might say "two books," Vietnamese requires a specific classifier for almost every noun, e.g., hai cuốn sách (two books, where cuốn is the classifier for books/rolls). Using the correct classifier not only makes your speech more natural but is often essential for clarity. While cái is a general classifier for inanimate objects, try to learn more specific ones like con for animals, chiếc for vehicles, tô for bowls, or chai for bottles as you progress. Mastering classifiers is a hallmark of good Vietnamese proficiency and significantly improves comprehension.

Regional differences in pronunciation exist but are usually minor for numbers. For example, in the South, 'một' can sometimes sound like 'mụt', and 'năm' (five) might be pronounced 'lăm' when counting minutes (e.g., 'hai mươi lăm phút' for 25 minutes). Similarly, 'mươi' (tens) sometimes becomes 'mười' in casual Southern speech. Being aware of these slight variations will greatly aid your listening comprehension in different regions of Vietnam. When stating dates, Vietnamese typically follows a day-month-year format (e.g., ngày mười tháng chín năm hai nghìn không trăm hai mươi tư for September 10, 2024), which is important for scheduling and appointments.

Common Mistakes

❌ Tôi muốn mua ba sách.

✅ Tôi muốn mua ba cuốn sách. (Missing classifier for 'sách' - books/rolls. 'Cuốn' is a common classifier for items that are rolled or bound.)

❌ Mấy giờ rồi bây giờ?

✅ Bây giờ là mấy giờ? (Incorrect word order. 'Bây giờ là' comes first when asking 'What time is it now?')

❌ Một rưỡi giờ chiều.

✅ Một giờ rưỡi chiều. ('Rưỡi' (half past) always comes after the full number and its associated unit of measurement, like 'giờ'.)

❌ Bạn có bao nhiêu tuổi?

✅ Bạn bao nhiêu tuổi? (The verb 'có' is generally omitted when asking 'how old' with 'bao nhiêu tuổi' in this common construction.)

Practice

1. Tôi muốn mua hai _____ bánh mì. (classifier for 'bread rolls')

2. Chuyến xe buýt đến lúc tám giờ _____. (half past)

3. Cái áo này giá một trăm _____ đồng. (thousand)

4. Cho tôi một _____ nước cam. (classifier for 'glass of')