It fits the Royal Spanish Academy (RAE)!
Euro, dollars, pesos, cardinal numbers, fractional, ordinals ... to letters!
Números TIP

Números TIP can convert cardinal numbers to word, ordinal numbers to word, fractional or partitive numbers to word, multiplicative numbers to word, decimal numbers to word, Roman numerals, collective numbers, number of syllables, name of polygons and polyhedra, ages and born. TIP Numbers offers morphological, orthographic and grammatical information of each of the numbers converted to word. In addition, examples that help understanding and good use are included.

Write a number without comma or decimal point for the thousands or millions. You can separate the thousands or millions with a blank space. In decimal, you can use a decimal point or a comma. Your can write fractions with the bar. In scientific notation, you can use the letter E without spaces. For Roman numeral, you can write in capital letter all symbols.

Números TIP writes in letters an amount in euros, pesos or dollars, useful for checks and official business. To convert euros, type a number in euros with the € symbol or with the word euros after the quantity or price. To convert pesos or dollars, type a number in pesos or dollars with the $ symbol, before or after the number, or with the word pesos or dólares after the quantity or price. This currency conversion in euros, pesos or dollars to letters is currently only available for Spanish, we are working to make the conversion in other languages ​​and to other currencies.

Try the examples

13289    53625999567    -345676    13 289    53 625 999 567    -345 676    12.58    45,78997    -47.2

-98,712    3/4    78/125    -3/4    78/-125    2,4E10    5E-3    -2,4E10    -5.23E-3    DLVI    IX    XXXVI


Try to convert an amount in euros, dollars or pesos to letters (for now, only for Spanish)

459€       0,36€       321.01 euros       $23.78.01       123.78$       1000 pesos       $100.88       999 dólares       4532.55$      

Carreras-Riudavets, F.; Rodríguez-Rodríguez, G.; Hernández-Figueroa, Z.; Arroyo Herrero, L. (2013). Convertidor de números - Números TIP. Disponible en