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18 in Words

Eighteen: in English, Hindi and cheque format.

  • Numbers in words
  • Checked 10 Oct 2026
18Answer

18 = eighteen

The number 18 in words is eighteen. Below you will find it in the Indian and international systems, in Hindi (अठारह), in cheque format and with a few useful number facts.

18 in words in English

Words (Indian system)eighteen
Words (international system)eighteen
Title caseEighteen
Cheque formatRupees Eighteen Only
Hindiअठारह
Hindi in English lettersatharah
Digits (Indian commas)18
Digits (international commas)18

Spelling tips for 18

  • Write eighteen, not "eightteen".

18 in Hindi

In Hindi, 18 is written अठारह. In English letters it reads atharah. Hindi follows the same lakh and crore grouping as Indian English. For all Hindi numbers from one to a hundred, see the Hindi ginti chart.

18 rupees in words for a cheque

On a cheque, write the amount in words as Rupees Eighteen Only. Start close to the left edge, end with "Only" so nothing can be added, and draw a line through any empty space. In the box for figures, write 18/-. More tips are in how to write an amount on a cheque.

Facts about the number 18

Even or oddEven
Prime factors2 × 32
Roman numeralXVIII
Ordinal18th (eighteenth)
Sum of digits9
Number of digits2

Nearby numbers in words

NumberIn words
14fourteen
15fifteen
16sixteen
17seventeen
19nineteen
20twenty
21twenty-one
22twenty-two

Questions people ask

How do you write 18 in words?

18 is written as eighteen. In title case, for example on a form, write Eighteen.

How do you write 18 in Hindi?

18 in Hindi is अठारह. In English letters it is atharah.

How do I write 18 rupees on a cheque?

Write Rupees Eighteen Only in the words line and 18/- in the figures box. Ending with "Only" stops anyone from adding to the amount.

Is 18 a prime number?

No. 18 can be divided by 2, so it is a composite number.