How to convert amounts of money, without decimals, to US American English words?

To write an integer number we first must know the place value of each digit.

• For example, the number 1,234,567 has a 1 in the millions place, a 2 in the hundred thousands, a 3 in the ten thousands place, a 4 in the thousands place, a 5 in the hundreds place, a 6 in the tens place, and a 7 in the ones place.
• 1,234,567 in words is:
• = one millions (1,000,000) + two hundred thousands (200,000) + three ten thousands (30,000) + four thousands (4,000) + five hundreds (500) + six tens (60) + seven ones (7)
• = one million + two hundred thousands + thirty thousand + four thousand + five hundred + sixty + seven
• = one million + (two hundred + thirty + four) thousand + five hundred + sixty + seven
• = one million + two hundred thirty-four thousand + five hundred + sixty-seven
• = one million two hundred thirty-four thousand five hundred sixty-seven.

So, 1,234,567$ = one million two hundred thirty-four thousand five hundred sixty-seven dollars.

Notes:

• 1: Note the hyphen (or the minus sign) in "thirty-four" and "sixty-seven" above. Technically, it's correct to hyphenate compound numbers between twenty-one, 21, and ninety-nine, 99.
• 2: Placement of word "and": in American English do not use the word "and" after "hundred", "thousand" or "million". So, it is "one million two hundred thirty-four thousand five hundred sixty-seven" and not "one million and two hundred thirty-four thousand and five hundred and sixty-seven", though you may hear a lot of people using the last form, informally. On the contrary, the "and" word is always used in British English.

Full article: how to write USD currency amounts of money, dollars and cents, out in (US) American English words

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How to write integer and decimal numbers out in (US) American English words, using letters instead of numerals