The number of digits in a bank account number varies depending on the country and the specific bank. Here are some common examples:

• United States: Typically 9 to 12 digits, but it can vary by bank.
• United Kingdom: Usually 8 digits.
• India: Usually 11 to 16 digits.
• Canada: Usually 7 to 12 digits.
• Australia: Typically 6 to 9 digits.

If you want to know the exact length for a specific bank or country, please let me know!