What is the regex pattern for currency amount (usd)?

The regex pattern for currency amount (usd) is: ^\$?\d{1,3}(,\d{3})*(\.\d{2})?$.

How does the currency amount (usd) regex work?

^: Start of string. \$?: Optional dollar sign. \d{1,3}: 1-3 initial digits. (,\d{3})*: Optional comma-separated thousands. (\.\d{2})?: Optional cents (dot and 2 digits). $: End of string.

Regex for Currency Amount (USD)

Matches US dollar amounts with optional $ sign, thousand separators, and cents. Examples: $1,234.56, 99.99, $1000.

Pattern

/^\$?\d{1,3}(,\d{3})*(\.\d{2})?$/

Pattern Breakdown

Token	Explanation
^	Start of string
\$?	Optional dollar sign
\d{1,3}	1-3 initial digits
(,\d{3})*	Optional comma-separated thousands
(\.\d{2})?	Optional cents (dot and 2 digits)
$	End of string

Test Examples

Input	Match?
$1,234.56	Match
99.99	Match
$1000	Match
$1,23.45	No match
1.2	No match

Common Use Cases

Price input validation
Invoice parsing
Financial data extraction

Variations

^\$?[\d,]+(\.\d{2})?$

Simpler with less strict formatting

Other Regex Patterns

Email Address US Phone Number International Phone Number URL IPv4 Address IPv6 Address Date (MM/DD/YYYY)Date (ISO 8601 YYYY-MM-DD)Time (HH:MM, 24-hour)Credit Card Number US Social Security Number US ZIP Code

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