How to read a decimal aloud, and why money is read a completely different way. Type a number to see both.
Check format sets its own capitalisation: banks expect Title Case, so the option is fixed here.
Type a number to see it spelled out. Pick a currency for an amount with cents, or Check to get the line a bank expects.
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01 · the rule
Whole part as a number, then "point", then the digits individually: three point one four.
The digit-by-digit reading is not a stylistic preference — it is what makes the number unambiguous. "Three point fourteen" could be 3.14 or 3.014, and the listener has no way to decide. "Three point one four" can only be one number.
Everything else about reading decimals in words follows from that: the internal zeros get read, the leading zero gets read when precision matters, and money is read a different way entirely because it is not really a decimal.
02 · worked examples
| Number | In words | Note |
|---|---|---|
| 3.14 | three point one four | Digits read one at a time. |
| 0.5 | zero point five | The leading zero is read in careful speech. |
| 1.05 | one point zero five | The internal zero must be read, or the value changes. |
| 12.75 | twelve point seven five | Not "point seventy-five" — that names a different thing. |
| 3.14159 | three point one four one five nine | Any length, still one digit at a time. |
| 100.01 | one hundred point zero one | The whole part is read normally. |
03 · four readings
A decimal point is read differently depending on what the number is. The written form does not change; the spoken one does.
▸ maths and data
Digit by digit: three point one four. This is the default and the safest, because it cannot be misheard as a different magnitude.
▸ money
As units and subunits: twelve dollars and seventy-five cents. The decimal point is never spoken as "point" in an amount.
▸ measurements
Often as a fraction of the unit: "two point five metres" or "two and a half metres", depending on how precise the speaker wants to sound.
▸ versions and identifiers
Digit by digit, and the point is often called "dot": version three dot one four. Software versions are not quantities.
The money case is the one that trips people up, because a price looks like a decimal and is not one. $12.75 is twelve of one unit and seventy-five of another; the point is a separator between two counts, not a marker of a fractional part. Say "twelve point seven five dollars" and you will be understood, and you will also sound like you are reading data rather than naming a price.
04 · the separator
English uses a point for the decimal and a comma for thousands. Most of continental Europe and Latin America do the exact opposite, which means 1.234 is a little over one in an English document and one thousand two hundred thirty-four in a Spanish one.
Neither convention is wrong, and there is no way to tell from the string which one is in force. This is why the converter on this site parses English input with its own rules rather than sharing the Spanish parser: the same characters mean different numbers, and guessing would produce a wrong answer without any error to warn you.
On any document that crosses a border, writing the number in words as well is the cheapest insurance there is. "One thousand two hundred thirty-four" reads the same under every convention.
05 · repeating decimals
One third written as a decimal is 0.333… and the threes carry on for ever. American usage calls this a repeating decimal and British usage a recurring decimal; the two terms mean the same thing.
Reading one aloud, you name the digits and then say what repeats: "zero point three recurring", or "zero point one six recurring" for 0.1666… Where a block repeats rather than a single digit, the whole block is named — 0.142857142857… is "zero point one four two eight five seven recurring". In writing, the repetition is marked with a bar over the digits or a dot at each end of the block, depending on the convention in use.
The practical question is what to do with them, and the answer is usually not to write the decimal at all. A repeating decimal is a rounding waiting to happen: 0.333 is not one third, and three of them do not make one. Where the value has to be exact — a share of a payment, a proportion in a contract — the fraction is the correct form, because one third is precise and no decimal of it ever is.
It is also why money never uses repeating decimals. An amount is fixed to two places by definition, so a third of ten dollars is not 3.333… but a rounding decision somebody has to make: 3.33, 3.33 and 3.34. The extra cent has to land somewhere, and pretending the decimal repeats only postpones deciding where.
06 · mistakes
— 3.14 as "three point fourteen"
+ three point one four
Reading the decimal part as a whole number is ambiguous: "point fourteen" could be .14 or .014. One digit at a time removes the doubt.
— 0.5 as "point five" in formal speech
+ zero point five
Dropping the leading zero is normal in conversation and avoided where precision matters, because "point five" can be lost in noise.
— 1.05 as "one point five"
+ one point zero five
The internal zero is not silent. Skipping it multiplies the decimal part by ten.
— $12.75 as "twelve point seven five dollars"
+ twelve dollars and seventy-five cents
Money has its own reading. The decimal point in an amount is a separator between units, not a decimal marker to be spoken.
— 3,14 in an English document
+ 3.14
The comma is the decimal separator in much of the world, including most of the euro area. In English the comma groups thousands.
07 · questions
Q01
Read the whole part as a number, say "point", then read the digits after it one at a time: 3.14 is "three point one four". The digit-by-digit reading is what keeps the value unambiguous, which is why it is the standard in mathematics and data.
Q02
Because it is ambiguous. "Point fourteen" could be .14 or .014 depending on how the listener parses it, and there is no way to tell from the sound. Reading each digit removes the guess entirely.
Q03
In careful or formal speech, yes: "zero point five". Conversationally people say "point five" and are understood. The leading zero earns its place when the number is being dictated or read over a bad line, where a lost "point" changes the number by a factor of ten.
Q04
"Point" is standard in both American and British English: three point one four. "Decimal" appears in some teaching contexts and in a few other languages calqued into English, but it is not the ordinary spoken form.
Q05
Not as a decimal. $12.75 is "twelve dollars and seventy-five cents", and the point is not spoken at all. The converter above switches to that reading when you pick a currency mode, which is why the mode matters.
Q06
Digit by digit, and the separator is usually "dot" rather than "point": version 3.14 is "three dot one four" or "three point fourteen" in informal speech, because a version is a label rather than a quantity. Software conventions are looser here than mathematics.
Q07
Most of continental Europe and Latin America write 3,14 where English writes 3.14. In an English-language document, use the point for decimals and the comma for thousands, and be deliberate about it on anything crossing a border — the same string means very different numbers under the two conventions.
Q08
For money, always two. For measurements, as many as the instrument justifies and no more — extra places imply a precision you do not have. For a repeating decimal, either round and say so, or write it as a fraction, which is exact.
Except for money, which is read as units and subunits. Switch the converter above between Number and a currency to hear the difference.