"How much?" in Thai is เท่าไหร่, said
tâo-rài, with ครับ or
ค่ะ on the end. Point at the thing and say it and you
will be understood anywhere in the country.
The harder half is understanding the answer, so the numbers are on this page
too. Thai numbers are regular enough to learn in an afternoon.
How it is pronounced
Syllable
Sounds like
Tone
เท่า
tâo
falling tonefalling tone
ไหร่
rài
low tonelow tone
Falling, then low — the phrase goes down and stays down. Do not lift the end to make it sound like a question. Thai marks questions with words, not with intonation, and a rising ending is a different tone rather than a different mood.
The words that come with it
เท่าไหร่
tâo-rài
how much / how many
แพง
paeng
expensive
ถูก
tùuk
cheap
บิล
bin
the bill
บัตร
bàt
card
เอาบัตร — "I'll pay by card".
Asking is the easy half
The reason this phrase disappoints people is that it works. You say
เท่าไหร่ครับ, the vendor answers in Thai at full speed,
and you have learned nothing except that you cannot count.
So learn the numbers with the question, not after it. Thai numbers are
unusually kind: one to ten, then a system so regular you can build every
number up to a thousand from it with almost no exceptions.
หนึ่ง
nèung
one (1)
สอง
sǒng
two (2)
สาม
sǎam
three (3)
สี่
sìi
four (4)
ห้า
hâa
five (5)
สิบ
sìp
ten (10)
ร้อย
rói
one hundred (100)
พัน
pan
one thousand (1,000)
Twenty is yîi-sìp, thirty is sǎam-sìp, and so on — the digit
followed by "ten". Twenty-five is yîi-sìp hâa, literally "two ten
five". A hundred and fifty is rói hâa-sìp. Once you have one to ten
and the words for ten, hundred and thousand, you can say and hear any price
you will meet in a shop.
Two irregularities, and that is genuinely all of them. Twenty is
yîi-sìp rather than sǒng-sìp. And a final "one" becomes
èt rather than nèung: twenty-one is yîi-sìp èt.
Prices are almost always round
Street food, taxis and markets deal in tens and hundreds. You will hear
sìi-sìp (40), hâa-sìp (50), rói (100) far more than
anything precise. If you learn the multiples of ten up to a hundred and the
hundreds up to a thousand, you have covered the overwhelming majority of
prices anyone will say to you.
The mistake English speakers make
เท่าไหร่ is falling then low, and English speakers
reliably turn it into a rising question instead — because in English a
question goes up at the end. Thai does not signal questions with intonation.
The tones are fixed regardless of whether the sentence is a question, and
lifting the end changes the word rather than the mood.
This is one of the hardest habits to break and it affects every question you
ask in Thai, not just this one. If you take one thing from this page, take
that.
Saying it is expensive, and what happens next
แพง (paeng) is "expensive" and
ถูก (tùuk) is "cheap". In a market, saying
แพง with a smile is a normal opening move and the price
will usually come down a little.
In a shop with a till, a 7-Eleven, or a restaurant, it is not — prices are
fixed and haggling reads as rude. The line is roughly: if the price is
displayed, it is the price.
Taxis are their own case. Ask for the meter —
เปิดมิเตอร์ครับ — rather than negotiating a fare, and
you will almost always pay less than the number a driver would have quoted
you.
In a sentence
เท่าไหร่ครับ
tâo-rài kráp
How much is it? — said by a man
ร้อยหนึ่งครับ
rói nèung kráp
A hundred and one — said by a man
แพงค่ะ
paeng kâ
That is expensive — said by a woman
ถูกค่ะ
tùuk kâ
That is cheap — said by a woman
ขอบิลหน่อยครับ
kǒr bin nòi kráp
Could I have the bill — said by a man
mid tonelow tonefalling tonehigh tonerising tone
Common questions
How do you ask how much something costs in Thai?
เท่าไหร่, tâo-rài, plus krap or ka. Pointing at the item and saying it is enough — you do not need a full sentence, and adding one will not make you better understood.
What does tao rai mean?
How much, or how many. It covers both quantity and price, so it works for asking what something costs and for asking how many of something there are.
Is it rude to haggle in Thailand?
It depends where. In markets and with street vendors, a polite bit of negotiation is normal and expected. In shops with a till, convenience stores and restaurants, prices are fixed and haggling reads as rude. The rule of thumb: if the price is displayed, it is the price.
How do you say numbers in Thai?
Learn one to ten plus the words for ten (สิบ), hundred (ร้อย) and thousand (พัน), and the rest is built from them: twenty-five is "two ten five". The only irregularities are that twenty is yîi-sìp rather than sǒng-sìp, and a final one is èt rather than nèung.