Numbers to words

How to convert numbers and amounts into words

This converter spells one value in English, Spanish, German, Japanese, French, or Brazilian Portuguese. It helps when a worksheet, invoice draft, accessibility label, or document needs words instead of a long row of digits. Interface and output language are separate, so English controls can produce Japanese words.

Conversion runs in your browser and the value is not saved. This is a writing aid, not a bank, legal, translation, or currency-exchange service. Compare important wording with the original digits and the receiving organization’s rules.

How to use the numbers-to-words converter

1. Enter digits with an optional leading minus sign and one decimal point. Use 1205.06, not 1,205.06 or a currency symbol.
2. Choose Number words for a general value or Money amount. Money mode accepts USD, EUR, JPY, or BRL. JPY permits only whole amounts or .00.
3. Choose the output language explicitly. This setting controls the written words; the site language only controls the buttons, labels, errors, and guide.
4. Select Convert to words, review the result and output-language label, then use Copy words. Changing an input or option clears the old result so it cannot be mistaken for the new selection.

How whole numbers, decimals, and language rules are handled

The integer range is zero through 999,999,999, with an optional minus. Each language receives its own place-value rules: English thousand and million; Spanish mil and millón; German compound words and Million; French mille and million; Portuguese mil and milhão; Japanese 万 and 億. Output is not an English phrase with translated labels.

In Number words mode, up to six digits after the point are read individually and trailing zeros are preserved. Thus 12.050 becomes “twelve point zero five zero” in English, not twelve and five hundredths. The same digits become “doce coma cero cinco cero” in Spanish and “十二点零五零” in Japanese. Digit-by-digit wording avoids silently changing precision or inventing a fraction.

Only a period is accepted as the input decimal mark. Grouping marks, spaces, scientific notation, formulas, and currency symbols are rejected because they are ambiguous across locales. The result uses the selected language’s natural decimal word.

Money mode and minor-unit rules

Money mode treats the integer as the major currency unit and exactly one or two decimal digits as hundredths. Entering 8.5 therefore means 8 major units and 50 minor units; 8.05 means 8 and 5 minor units. No rounding occurs. A value with three decimal places is rejected so a fraction cannot be changed without your knowledge.

USD uses dollars and cents, EUR euros and cents or the local equivalent, JPY yen, and BRL reais and centavos. Singular and plural labels are selected where needed. A zero minor amount is omitted. JPY has no minor unit here, so nonzero decimals are rejected. These phrases are general document wording only: they do not convert between currencies, validate a cheque, add an “only” suffix, or guarantee the format accepted by a bank.

Checked examples

Good uses for the written result

Use the result as a draft for invoices, quotations, receipts, exercises, captions, narration, data checks, and forms asking for both digits and words. It can reduce place-value spelling mistakes around hundreds, thousands, and millions.

For learning, try 0, 10, 11, 20, 21, 99, 100, 101, 999, 1,000, and 1,000,000. Switching output language reveals different grouping and joining rules. Keep the digits beside the words when proofreading.

Digit-by-digit decimals may differ from natural speech. Measurements, dates, telephone numbers, identifiers, percentages, and ordinals have separate conventions and are outside this converter’s scope.

Input limits and common errors

• Maximum integer magnitude: 999,999,999. Values at or beyond one billion are rejected rather than shown with an unsupported scale.
• Number words mode allows up to six decimal digits. USD, EUR, and BRL money amounts allow up to two and never round; JPY allows whole amounts or a .00 ending.
• Use ASCII digits and a period. Remove grouping marks, spaces, plus/minus words, currency signs, units, exponents, and formulas.
• The tool converts cardinal numbers only. It does not create ordinals such as twenty-first, cheque fractions such as 45/100, dates, phone-number readings, or words-to-number conversions.
• Regional style varies. English “and,” German spelling reform, French hyphenation, Spanish variants, Japanese financial numerals, and Portuguese usage may differ by house style. Review high-stakes text with an appropriate human or official guide.

Frequently asked questions