Argentine pesos to words
Convert peso amounts into the exact Spanish wording Argentine banks, ARCA (ex-AFIP) and notaries require. Compliant with the Check Law 24.452, ready to paste.
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- ◉ Modes: Invoice · Check · Notarial
- ◉ RAE rules and Check Law applied
Type an amount above…
Local conversion · nothing sent to a server
Same amount · three formats
$1.000.000Un millón de pesos
Un millón de pesos
Un millón de pesos ($1.000.000,oo)
Why writing Argentine pesos correctly matters
In Argentina, a misspelled amount can void a check, delay a payment or trigger an observation on a public deed. The Check Law 24.452 sets a critical rule: if the written amount differs from the numeric one, the words prevail.
Three settings concentrate the risk:
- Bank checks: Law 24.452 requires figure and words to match. When they disagree, words prevail. Drawer protection.
- ARCA electronic invoices: ARCA (which replaced AFIP in 2024) doesn't require words in technical XML, but PDFs and commercial contracts do.
- Public deeds: Argentine notaries and registries reject documents with apocope, gender or agreement errors.
This converter automates the three formats and applies RAE rules along with the Argentine convention. Six decisions a human must make (case, apocope, gender, agreement, "$" vs "U$S" distinction, and period separator) are resolved in one keystroke.
«$» or «U$S» — pesos or dollars
In Argentina, where dollarization is high, clearly distinguishing the currency is vital.
$ 1.000.000
The "$" symbol means Argentine pesos (ARS) by default. Standard on invoices, receipts, checks and commercial notices.
ARS · ISO 4217U$S 1.000
"U$S", "US$" or "USD" are used for dollars. Especially important in real estate operations, hard-currency rentals and contracts where confusion would be costly.
USD · real estate⚠ In contracts always specify the currency to avoid ambiguity. This tool converts Argentine pesos (ARS). For dollars see our general converter.
5 currency name changes in Argentina (1881–today)
Accumulated inflation forced Argentina to change its currency five times. Today's "peso" is ARS, in force since 2002.
Peso moneda nacional
First national currency
Peso ley 18.188
Dropped two zeros
Peso argentino
Dropped four zeros
Austral
Dropped three zeros
Peso convertible
1:1 USD parity
Peso (current)
Today · ARS
In practice: our converter generates the current peso (ARS since 2002). For older deeds in historical currencies, verify equivalents with BCRA.
How to use the converter in 3 steps
- 01
Enter the amount
Accepts European (
1.000.000) or US format. - 02
Pick a mode
Invoice for ARCA. Check per Law 24.452 (uppercase). Notarial for public deed.
- 03
Copy with one click
Hit Copy for check and uppercase text (Law 24.452) lands in your clipboard.
Modes: ARCA invoice, check (Law 24.452) and notarial deed
Invoice mode (ARCA, ex-AFIP)
Sentence case. For Argentine invoices type A, B, C, M and monotributo via ARCA.
Check mode (Law 24.452)
Uppercase. The Check Law 24.452 establishes that when figure and words discrepant, words prevail.
Notarial mode (public deed)
Uppercase + figure in parens at the end with ",oo" for whole amounts. Argentine notarial format on deeds, sale promises, mortgages and wills.
8 errors that get your document rejected by the bank or notary
❌veintiuno pesos
✅veintiún pesos
The form "veintiún" uses apocope before a masculine noun.
Source: RAE Ortografía §10.2
❌doscientas pesos
✅doscientos pesos
"Peso" is masculine. Hundreds agree: "doscientos", never "doscientas".
Source: RAE Ortografía §10.4
❌cien cincuenta pesos
✅ciento cincuenta pesos
"Cien" is used only for exactly 100.
Source: RAE Ortografía §10.3
❌treintaiún pesos
✅treinta y un pesos
From 31 onward tens and units are separated by "y".
Source: RAE Ortografía §10.2
❌un mil pesos
✅mil pesos
"Mil" never takes the article "un" before it.
Source: RAE Ortografía §10.5
❌uno millón pesos
✅un millón de pesos
"Uno" must apocopate to "un", and "millón" requires "de".
Source: RAE Ortografía §10.5
❌$ 1.000.000 (ARS or USD?)
✅$ 1.000.000 (ARS) or U$S 1.000 (dollars)
In Argentina the "$" symbol means pesos. For dollars, write "U$S", "US$" or "USD" — especially in real estate and contracts where ambiguity is costly.
Source: Argentine commercial usage
❌Figure and words differ on a check
✅Match (if differ, words prevail)
Law 24.452 establishes that when the written amount differs from the numeric one, the written amount prevails. Key protection for the drawer.
Source: Law 24.452 art. 2
Rules for writing peso amounts
01 Apocope before masculine noun →
"Uno" and "veintiuno" shorten to "un" and "veintiún" before "pesos".
RAE Ortografía 2010, §10.2
02 Gender agreement →
"Peso" is masculine. "Doscientos pesos", never "doscientas".
RAE Ortografía 2010, §10.4
03 Cien vs ciento →
"Cien" = exactly 100 or multiplier. From 101 to 199: "ciento".
RAE Ortografía 2010, §10.3
04 Conjunction "y" between tens and units →
"Y" between tens and units from 31 upward.
RAE Ortografía 2010, §10.2
05 Thousands separator: the period →
In Argentina the thousands separator is the period: "$1.000.000". Comma for decimals: "$1.234,56". European/Latin American standard.
BCRA · RAE
06 "$" pesos vs "U$S" dollars →
In Argentina "$" = pesos (ARS). For US dollars use "U$S", "US$" or "USD" to avoid ambiguity — especially in real estate contracts where dollarization is high.
Argentine commercial practice
Bonus · 08Convert words to pesos →
Frequently asked questions
01 Is the Argentine pesos converter free? +
02 What is ARCA? Did it replace AFIP? +
03 Does "$" mean pesos or dollars in Argentina? +
04 Law 24.452: do words prevail over numbers on checks? +
05 Does the ARCA electronic invoice require words? +
06 How many times has the Argentine peso changed name? +
07 How do I write large amounts (millions due to inflation)? +
08 How do I use "U$S" for dollars in contracts? +
U$S 100.000 (DÓLARES ESTADOUNIDENSES CIEN MIL). This tool focuses on pesos; for dollars see our general converter.09 Do centavos exist in Argentina today? +
10 Difference vs Mexican, Colombian or Chilean pesos? +
Converters for other currencies
Editorial team · contador-de-palabras.com
Text tools for Spanish-speaking professionals since 2024.