One Thousand Eight Hundred in Numbers

How to write 1,800 in words

The number 1,800 is written “one thousand eight hundred” in British English.

The simplest method is to read the figure in groups of three digits from the left and name each group:

1. 1,000 is 1 in the thousands place, so we write “one thousand”.
2. 800 is what remains, written “eight hundred”.
3. Join the groups in order, without “and” between them: “one thousand eight hundred”.

In running text the number is normally lowercase: “the fee is one thousand eight hundred pounds”. At the start of a sentence, in a heading, or on a legal document it takes capitals: One Thousand Eight Hundred. Formal documents often give both forms together, for example “one thousand eight hundred (1,800)”, so that a reader can check one against the other.

4 words · 23 letters · 1,800 = 1.8 × 1,000 (one thousand)

One Thousand Eight Hundred in figures

To turn “one thousand eight hundred” back into digits, work group by group. Each group word (billion, million, thousand) marks a block of three digits, so any block that is missing or short is padded with zeros. The result is 1,800, or 1800 without separators.

In expanded form: 1,000 + 800 = 1,800.

Commas go after every third digit counting from the right: 1,800. In Britain and the United States this is the standard grouping; in much of Europe the same number appears as 1.800, and international scientific style uses spaces: 1 800.

How to write 1,800 on a cheque

Banks read the amount in words as the legal amount, so it must be exact. Write the pounds in words, add the word pounds, and finish with only so that nothing can be added afterwards.

• With pence: add the pence after the pounds – “One thousand eight hundred pounds and fifty pence only” for £1,800.50 – or write the pence as a fraction, “One thousand eight hundred pounds 50/100”.
• US check: “One thousand eight hundred and 00/100 dollars”. American cheques drop the “and” after the hundreds and put it before the cents.
• Bangladesh, India and Pakistan: the currency word comes first and the amount is counted in lakh and crore – “Taka one thousand eight hundred only”, with the figure written Tk. 1,800/=.

Read the full guide to writing a UK cheque or the guide to writing a cheque in Bangladesh for the layout, the date, and what to do if the words and figures disagree.

1,800 in British and American English

1,800 is spelled exactly the same way – “one thousand eight hundred” – in British and American English. The two varieties only differ when a number contains hundreds followed by tens or units, where British English adds “and”. Read more in our guide to British vs American English numbers.

1,800 in Bangla (বাংলায় ১,৮০০)

In Bangla, 1,800 is written ১,৮০০ using Bengali digits, and in words it is এক হাজার আটশো. Bangla has its own word for every number from one to ninety-nine, and above that it counts in হাজার (thousand), লাখ (lakh) and কোটি (crore), the same grouping used across Bangladesh and India.

On a cheque or invoice written in Bangla the amount reads এক হাজার আটশো টাকা মাত্র (“এক হাজার আটশো taka only”). In English on the same cheque it is Taka one thousand eight hundred only – see How to write a cheque in Bangladesh.

Common mistakes when writing 1,800

• Adding “and” between groups. one thousand and eight hundred is wrong – “and” only follows the hundreds, never the word thousand or million.
• Pluralising the group words. It is thousand, hundred, never “hundreds”, “thousands” or “millions” after a number.
• Using shorthand in formal documents. 1.8k is fine in a message, but a cheque or contract needs one thousand eight hundred or 1,800.
• Miscounting the zeros. 1,800 has 4 digits. Check the commas: every group between commas should have exactly three digits.

Other ways to write 1,800

Half of 1,800 is 900 (nine hundred). Double 1,800 is 3,600 (three thousand six hundred).