Fiscal tool · USD · Hispanic

US dollars to words

Convert US dollars (USD) into Spanish words instantly. For checks, real estate contracts and notarial deeds in Ecuador, El Salvador, Panama and Argentina.

  • ✦ No signup · 100 % in your browser
  • ✦ Modes: Check · Contract · Notarial
  • ✦ Centavos included · "con XX/100"
Mode
$
Amount in words (Spanish)

Type an amount above…

Local conversion · nothing sent to a server

Same amount · three formats

USD 1,234.56
🏦 Check · US/LATAM

Mil doscientos treinta y cuatro dólares con 56/100

📄 Contract · Int'l

Mil doscientos treinta y cuatro dólares estadounidenses con cincuenta y seis centavos

📜 Notarial · Deed

Mil doscientos treinta y cuatro dólares con cincuenta y seis centavos (USD 1,234.56)

01 · Why it matters

Why writing dollars correctly in Spanish matters

The US dollar has a unique role in the Hispanic world: official currency in four Hispanic countries (Ecuador, El Salvador, Panama, Timor-Leste) and dominant parallel currency in real estate operations in Argentina, Uruguay, Peru and Venezuela.

Three settings concentrate the risk:

  • Bank checks: both in the US and Hispanic banks with USD accounts, checks require the amount in words. Standard format: "cien dólares con 50/100".
  • Real estate contracts: in Argentina, Uruguay and Peru, properties are bought in physical USD. The deed records the amount in words to prevent fraud.
  • Notarial deeds: Ecuadorian and Salvadoran notaries (dollarized countries) require amounts in words per local convention.

This converter automates the three formats and applies RAE rules for "dólar" (masculine, apocope, agreement). It keeps the dollar centavos in the output, unlike Chilean or Colombian pesos which work in whole amounts.

Check · Bank of America1234
$1,234.56
Mil doscientos treinta y cuatro dólares con 56/100
Words + "con XX/100"
signature ________________
Purchase contract · Buenos AiresDeed 8472
Real estate price in physical USD
Doscientos cincuenta mil dólares estadounidenses (U$S 250.000)
U$S distinguishes from ARS pesos
02 · Correct notation

«$», «U$S», «US$» or «USD»

Four ways to write the dollar in Spanish. Each belongs to a different context.

$

Generic

Only when context makes USD clear (US check, internal invoice). Ambiguous in LATAM contexts with pesos.

U$S

Argentina · LATAM

Heavy use in Argentina and Uruguay to distinguish USD from local pesos in real estate contracts. Recommended in LATAM.

US$

International

Alternative variant to "U$S" used in some Hispanic countries. Also distinguishes from pesos.

USD

ISO 4217 · Formal

International code. Recommended for cross-country contracts, banking systems and electronic invoicing.

⚖ For international formal contracts use USD. In Hispanic contracts where local pesos coexist, use U$S or US$ to avoid ambiguity.

03 · Dollarized countries

4 Hispanic countries use USD as official currency

Plus Argentina, Uruguay, Peru and Venezuela where USD circulates as dominant parallel currency.

◇ 1904
🇵🇦 Panama

Alongside balboa (1:1)

★ 2000
🇪🇨 Ecuador

Law 4 «Trolebús» · sucre out

◇ 2000
🇹🇱 Timor-Leste

Asia-Pacific

★ 2001
🇸🇻 El Salvador

Alongside colón (de facto only)

Bonus fact: Ecuador mints its own dollar centavos since 2000 dollarization, equivalent in value to US Mint ones but valid only in Ecuador. A unique numismatic curiosity in the Hispanic world.

04 · Workflow

How to use the converter in 3 steps

  1. 01

    Enter the amount

    Accepts US format (1,234.56) or European (1.234,56). Keeps centavos.

  2. 02

    Pick a mode

    Check for bank (uppercase + 56/100). Contract for international invoice. Notarial for public deed.

  3. 03

    Copy with one click

    Hit Copy for contract and Spanish text lands in your clipboard.

05 · Modes

Modes: check, international contract and notarial deed

🏦

Check mode (US/LATAM)

Uppercase with "con XX/100", equivalent to US "AND XX/100" format. Works for US personal checks and USD accounts at LATAM banks.

Mil doscientos treinta y cuatro dólares con 56/100
📄

Contract mode (International)

Sentence case with "dólares estadounidenses" (full name) and centavos written out. Ideal for international invoices, commercial contracts and formal cross-country documents.

Mil doscientos treinta y cuatro dólares estadounidenses con cincuenta y seis centavos
📜

Notarial mode (Deed)

Uppercase + centavos in letters + figure in parens at the end. Canonical format for public deeds in Ecuador, El Salvador and USD real estate deeds in Argentina.

Mil doscientos treinta y cuatro dólares con cincuenta y seis centavos (USD 1,234.56)
06 · Real errors

8 errors that get your document rejected by the bank or notary

#01 Apocope

❌veintiuno dólares

✅veintiún dólares

The form "veintiún" uses apocope before a masculine noun.

Source: RAE Ortografía §10.2

#02 Masculine gender

❌doscientas dólares

✅doscientos dólares

"Dólar" is masculine. Hundreds agree: "doscientos", never "doscientas".

Source: RAE Ortografía §10.4

#03 Cien vs ciento

❌cien cincuenta dólares

✅ciento cincuenta dólares

"Cien" only for exactly 100.

Source: RAE Ortografía §10.3

#04 Separation with "y"

❌treintaiún dólares

✅treinta y un dólares

From 31 onward tens and units separated by "y".

Source: RAE Ortografía §10.2

#05 Mil without article

❌un mil dólares

✅mil dólares

"Mil" never takes "un".

Source: RAE Ortografía §10.5

#06 Million with "de"

❌uno millón dólares

✅un millón de dólares

"Uno" apocopates and "millón" requires "de".

Source: RAE Ortografía §10.5

#07 Ambiguous symbol

❌$100,000 (USD or ARS/MXN?)

✅U$S 100,000 or USD 100,000

In Hispanic countries where local pesos and USD coexist, the "$" symbol is ambiguous. Writing U$S, US$ or USD in formal contracts avoids costly errors.

Source: LATAM commercial practice

#08 Confusing USD with AUD/CAD

❌dólares (unspecified)

✅dólares estadounidenses (USD)

Many "dollars" exist: US (USD), Canadian (CAD), Australian (AUD), New Zealand (NZD), Singapore (SGD). International contracts must specify origin.

Source: ISO 4217

07 · RAE rules

Rules for writing dollar amounts in Spanish

01 Apocope before masculine noun →

"Uno" and "veintiuno" shorten to "un" and "veintiún" before "dólares".

✓un dólar · veintiún dólares · cuarenta y un dólares
✗uno dólar · veintiuno dólares

RAE Ortografía 2010, §10.2

02 Gender agreement →

"Dólar" is masculine. "Doscientos dólares", never "doscientas".

✓doscientos dólares · trescientos dólares
✗doscientas dólares

RAE Ortografía 2010, §10.4

03 Cien vs ciento →

"Cien" = exactly 100 or multiplier. 101–199: "ciento".

✓cien dólares · ciento cincuenta dólares · cien mil dólares
✗cien cincuenta dólares

RAE Ortografía 2010, §10.3

04 Conjunction "y" between tens and units →

"Y" between tens and units from 31 upward.

✓treinta y un dólares · ciento cinco dólares
✗treintaiún dólares

RAE Ortografía 2010, §10.2

05 "Dólares estadounidenses" — full name →

In international contracts use the full name "dólares estadounidenses" to distinguish from Canadian, Australian or other dollars. Everyday text accepts just "dólares" when context is clear.

✓cien dólares estadounidenses · USD 100
✗cien dólares (in unclear international contract)

RAE DPD «dólar» · ISO 4217

06 Dollar centavos →

Unlike Chilean, Colombian or Argentine pesos, USD centavos are actively used. Coins: penny (1¢), nickel (5¢), dime (10¢), quarter (25¢), half dollar (50¢).

✓cien dólares con cincuenta centavos · $100.50
✗cien dólares con cincuenta céntimos (céntimos = euros only)

US Mint · RAE «centavo»

Bonus · 08Convert words to dollars
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Figure
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09 · FAQ

Frequently asked questions

01 Is the dollars-to-words converter free? +
Yes. 100% free, no signup, no usage limit. Runs in your browser.
02 Which Hispanic countries use the US dollar officially? +
Four Hispanic countries have adopted USD as official currency: Panama (since 1904, alongside balboa), Ecuador (since 2000, Ley Trolebús), El Salvador (since 2001, alongside colón) and Timor-Leste (since 2000). In Argentina, Uruguay, Peru and Venezuela, USD circulates as a dominant parallel currency for real estate and savings.
03 "$", "U$S", "US$" or "USD"? Which to use in contracts? +
Depends on context. In Hispanic texts where local pesos and USD coexist, "$" is ambiguous. Forms that avoid confusion: "U$S" (heavy use in Argentina), "US$", "USD" (ISO 4217), or "dólares estadounidenses". Internal US checks accept "$". Cross-country contracts: "USD".
04 When is USD used in contracts in non-dollarized countries? +
In Argentina real estate is quoted and bought 100% in physical USD (though the deed records the peso equivalent). In Uruguay and Peru it's common for real estate. In Venezuela it's the main savings currency. In Mexico USD operations are less common but exist in northern border zones.
05 How do I write a check in dollars? +
US standard format: ONE HUNDRED AND 50/100 in uppercase, with cent fraction. Our Check mode generates the Spanish equivalent: CIEN DÓLARES CON 50/100 or CIEN DÓLARES CON CINCUENTA CENTAVOS. Hispanic banks operating USD accounts accept both formats.
06 Dollar cents: "céntimos" or "centavos"? +
In Spanish the correct form is "centavos". "Céntimos" is reserved for euros and Peruvian sol. RAE confirms in the DPD: the dollar divides into centavos.
07 Difference from Canadian, Australian dollars? +
Many "dollars" exist: USD (United States), CAD (Canada), AUD (Australia), NZD (New Zealand), HKD (Hong Kong), SGD (Singapore), etc. International contracts must always specify ISO 4217 code or full name ("dólares estadounidenses") to avoid ambiguity.
08 Why does Ecuador print its own dollar centavos? +
After 2000 dollarization, Banco Central del Ecuador began minting its own centavos (equivalent in value to US ones) due to coin shortage. They circulate alongside US Mint coins and are accepted in Ecuador, though not in the US.
09 Does it work with large amounts (millions)? +
Yes, up to 36 digits. "Un millón de dólares" (with "de"). USD real estate contracts routinely handle 6 or 7 figures.
10 Difference from Latin American pesos? +
The dollar has a peculiarity: its centavos ARE used (penny, nickel, dime, quarter), while CLP, COP and ARS rarely use centavos. Our dollar mode keeps centavos in the output, unlike CLP mode which drops them. See other currencies.
10 · Other currencies

Converters for other currencies

$

Mexican pesos

MX · CFDI · M.N.
€

Euros

ES · AEAT · ECB
S/

Peruvian soles

PE · SUNAT · «y»
$

Colombian pesos

CO · DIAN · M/cte
$

Argentine pesos

AR · ARCA · 24.452
$

Chilean pesos

CL · DFL 707 · SII
CdP

Editorial team · contador-de-palabras.com

Text tools for Spanish-speaking professionals since 2024.

Last reviewed: May 28, 2026· Sources: RAE Ortografía 2010 · ISO 4217 · US Mint · BCE Ecuador · Colegio de Escribanos CABA