Euros to words
Convert any euro amount into the exact wording Spanish banks, AEAT and notaries require. With céntimos or "con 00/100", ready to paste.
- ★ No signup · 100 % in your browser
- ★ Modes: Invoice · Check · Notarial
- ★ RAE and Banco de España rules
Type an amount above…
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Same amount · three formats
1.234,56 €Mil doscientos treinta y cuatro euros con cincuenta y seis céntimos (1.234,56 €)
Mil doscientos treinta y cuatro euros con 56/100
Mil doscientos treinta y cuatro euros con cincuenta y seis céntimos (1.234,56 €)
Why writing euros correctly in words matters
In Spain, a misspelled euro amount can void a bank check, delay a payment or trigger an observation on a notarial deed. The cost is real: lost time, contract disputes and, in extreme cases, document nullification.
Three settings concentrate the risk:
- Bank checks: Spain's Ley 19/1985 Cambiaria y del Cheque mandates that the figure match in number and in words. If they disagree, the words prevail. A misspelled check can be rejected by the bank.
- Invoices and contracts: AEAT does not require words on standard VAT invoices, but commercial contracts, bills of exchange and promissory notes do for legal validity.
- Notarial deeds: Spanish notaries reject instruments with apocope, gender or agreement errors. Any discrepancy between figure and words requires rewriting the document.
This converter automates the exact format for each of the three settings and applies RAE rules automatically. The six decisions a human must make when writing an amount (case, apocope, gender, agreement, decimal fraction and symbol position) are resolved here in one keystroke.
€ vs EUR — symbol, ISO code and correct position
Both are correct, but each belongs to a different context.
€
Currency symbol
RAE rules that the symbol goes after the number, separated by a space: "1.234,56 €". The US form with the symbol before ("€1.234,56" or "$1,234.56") does not apply to euros in Spanish.
1.234,56 €
EUR
ISO 4217
International code registered in ISO 4217. Used by banks, AEAT, SEPA systems and accounting software in electronic forms and currency fields.
1.234,56 EUR
⚖ Both are correct. For text, invoices and contracts use € after the number. For banks, AEAT and accounting software use EUR.
Why is "con 00/100" always written on checks?
The "X/100" fraction or the "con X céntimos" formula closes the amount and prevents anyone from adding decimals after the check is handed over. Same principle as drawing a horizontal line to the end of the writing space: leaving gaps invites tampering. Whether 1.000,00 € or 1.234,56 €, the céntimos are always expressed. Spain's Ley 19/1985 Cambiaria y del Cheque codifies this for Spanish banking.
Euros: 20 countries and 4 microstates that use it as official currency
The euro is not just Spain's currency. From 1999 to 2023, the eurozone has integrated 20 EU countries, plus 4 microstates by bilateral agreement with the ECB.
- 🇦🇹ATAustria
- 🇧🇪BEBelgium
- 🇩🇪DEGermany
- 🇪🇸ESSpain⭐
- 🇫🇮FIFinland
- 🇫🇷FRFrance
- 🇮🇪IEIreland
- 🇮🇹ITItaly
- 🇱🇺LULuxembourg
- 🇳🇱NLNetherlands
- 🇵🇹PTPortugal
- 🇬🇷GRGreece
- 🇸🇮SISlovenia
- 🇨🇾CYCyprus
- 🇲🇹MTMalta
- 🇸🇰SKSlovakia
- 🇪🇪EEEstonia
- 🇱🇻LVLatvia
- 🇱🇹LTLithuania
- 🇭🇷HRCroatia
How to use the euros-to-words converter in 3 steps
- 01
Enter the euro amount
Type the figure in the field. Accepts European separator (1.234,56) or US (1,234.56), plus thousands separators. Auto-detects the format.
- 02
Pick a mode
Invoice for AEAT and contracts (céntimos written out). Check for Spanish bank (uppercase + "con 56/100"). Notarial for deeds (uppercase + figure in parens).
- 03
Copy with one click
Hit Copy for bank and the text lands in your clipboard with céntimos or "con 00/100" per mode. Paste it into your system or directly onto the check.
Modes: invoice/contract, bank check and notarial deed
Each Spanish document type has a distinct format. The converter generates all three correctly without you having to remember the differences.
Invoice / Contract mode (AEAT)
Sentence case with the full word "céntimos" and the figure in parentheses at the end. The format used on commercial contracts, bills of exchange, promissory notes and for the VAT total on professional invoices.
Check mode (Banco de España)
Uppercase with the conjunction "con" before the "56/100" fraction. Ley 19/1985 Cambiaria y del Cheque mandates figure and words match. No "M.N." (the currency is implicit from the issuing bank).
Notarial mode (public deed)
Uppercase with the full word "céntimos" and the figure in parentheses at the end, per RAE convention for legal documents. The canonical format Spanish notaries use.
8 errors that get your document rejected by the bank or notary
Frequent errors on Spanish checks, invoices and deeds. Each has a grammatical or legal justification.
❌veintiuno euros
✅veintiún euros
The form "veintiún" uses the apocope before a masculine noun. A reviewer or bank will flag the long form as a formal error.
Source: RAE Ortografía §10.2
❌doscientas euros
✅doscientos euros
Hundreds agree in gender with the noun. "Euro" is masculine, so the correct form is "doscientos", never "doscientas".
Source: RAE Ortografía §10.4
❌cien cincuenta euros
✅ciento cincuenta euros
"Cien" is used only for exactly 100. From 101 onward it must be "ciento" followed by the rest.
Source: RAE Ortografía §10.3
❌treintaiún euros
✅treinta y un euros
From 31 upward, tens and units are separated by "y". Joining them is incorrect.
Source: RAE Ortografía §10.2
❌un mil euros
✅mil euros
"Mil" never takes the article "un" before it. Only "millón" does: "un millón de euros".
Source: RAE Ortografía §10.5
❌uno millón euros
✅un millón de euros
"Uno" must apocopate to "un", and "millón" requires the preposition "de" when followed by a noun.
Source: RAE Ortografía §10.5
❌con cincuenta y seis centavos
✅con cincuenta y seis céntimos
In Spain, the euro decimal is called céntimos. "Centavos" is reserved for Latin American currencies (Mexican peso, US dollar). RAE defines céntimo as the hundredth part of the euro.
Source: RAE DPD «céntimo»
❌€1.234,56 · € 1.234,56
✅1.234,56 €
RAE establishes the "€" symbol goes after the number with a space. The US form "$1,234.56" does not apply to euros in Spanish.
Source: RAE Ortografía §6.2.6
RAE rules for writing euros in words
Six rules the converter applies automatically. Knowing them helps you proofread any document manually.
01 Apocope before masculine noun →
"Uno" and "veintiuno" shorten to "un" and "veintiún" when followed by a masculine noun. The same applies to "treinta y uno", "cuarenta y uno", etc.
RAE Ortografía 2010, §10.2
02 Gender agreement in hundreds →
Hundreds agree in gender with the noun. "Euro" is masculine, so it is always "doscientos euros", never "doscientas".
RAE Ortografía 2010, §10.4
03 Cien vs ciento →
"Cien" is used only for exactly 100 or as a multiplier ("cien mil", "cien millones"). From 101 to 199 it is "ciento" followed by the rest.
RAE Ortografía 2010, §10.3
04 Conjunction "y" between tens and units →
"Y" appears only between tens and units starting at 31: "treinta y uno", "noventa y ocho". Never between hundreds and the rest.
RAE Ortografía 2010, §10.2
05 Céntimo: hundredth part of the euro →
In Spain, euro decimals are called "céntimos", not "centavos". RAE defines it as the hundredth part of the euro and reserves "centavo" for Latin American currencies.
RAE DPD «céntimo»
06 "€" symbol position →
RAE rules that the euro symbol goes after the number, separated by a space: "1.234,56 €". The US form with the symbol before ("€1.234,56") is incorrect in Spanish.
RAE Ortografía 2010, §6.2.6
Bonus · 08 Convert words to a euro amount →
Frequently asked questions
01 Is the euros to words converter free and signup-free? +
02 What is the difference between "€" and "EUR"? +
03 Is it "céntimos" or "centavos" for euros? +
04 How do I write the amount on a Spanish check? +
MIL DOSCIENTOS TREINTA Y CUATRO EUROS CON 56/100 (uppercase + anti-fraud fraction). Our "Check" mode generates this automatically.05 Why add "con 00/100" even when the amount is exact? +
06 Does it work with large amounts (one million euros or more)? +
07 Does AEAT require invoices to show the amount in words? +
08 What happens if I write "doscientas euros" in a contract? +
09 What is the difference between "veintiún euros" and "veintiuno euros"? +
10 Which countries besides Spain use the euro? +
Converters for other currencies
Editorial team · contador-de-palabras.com
Text tools for Spanish-speaking professionals since 2024. Every rule is verified against official sources before publishing.