One Hundred and Seventy in Numbers

How to write 170 in words

The number 170 is written “one hundred and seventy” in British English. Notice the word “and”: British English places it between the hundreds and the rest of the group. American English usually leaves it out.

Because 170 is below one thousand it is a single group: name the hundreds, add "and", then name the remaining tens and units. That gives “one hundred and seventy”.

In running text the number is normally lowercase: “the fee is one hundred and seventy pounds”. At the start of a sentence, in a heading, or on a legal document it takes capitals: One Hundred and Seventy. Formal documents often give both forms together, for example “one hundred and seventy (170)”, so that a reader can check one against the other.

4 words · 20 letters · 170 = 1.7 × 100 (one hundred)

One Hundred and Seventy in figures

To turn “one hundred and seventy” back into digits, work group by group. Each group word (billion, million, thousand) marks a block of three digits. The result is 170, or 170 without separators.

How to write 170 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 hundred and seventy pounds and fifty pence only” for £170.50 – or write the pence as a fraction, “One hundred and seventy pounds 50/100”.
• US check: “One hundred seventy 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 hundred and seventy only”, with the figure written Tk. 170/=.

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.

170 in British and American English

This is one of the numbers where the two spellings differ. British English keeps “and” after the hundreds; American English generally drops it.

Both are correct in their own country and both are understood everywhere. For a UK cheque, contract or exam, use the British form. See British vs American English numbers for the full comparison.

170 in Bangla (বাংলায় ১৭০)

In Bangla, 170 is written ১৭০ using Bengali digits, and in words it is একশো সত্তর. 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 একশো সত্তর টাকা মাত্র (“একশো সত্তর taka only”). In English on the same cheque it is Taka one hundred and seventy only – see How to write a cheque in Bangladesh.

Common mistakes when writing 170

• Dropping “and”. one hundred seventy is American usage. In British English write one hundred and seventy.
• Pluralising the group words. It is hundred, never “hundreds”, “thousands” or “millions” after a number.
• Mixing words and figures. In running text keep to one style: one hundred and seventy or 170, not 170 (one hundred and seventy) unless it is a legal document.

Other ways to write 170

Half of 170 is 85 (eighty-five). Double 170 is 340 (three hundred and forty).