{"id":395,"date":"2025-07-15T13:34:46","date_gmt":"2025-07-15T13:34:46","guid":{"rendered":"https:\/\/functiontranslator.com\/2021\/02\/12\/rounddown\/"},"modified":"2021-02-13T11:36:14","modified_gmt":"2021-02-13T11:36:14","slug":"rounddown","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/en\/rounddown\/","title":{"rendered":"ROUNDDOWN"},"content":{"rendered":"

This guide provides an overview of the ROUNDDOWN function, available in both Microsoft Excel and Google Sheets. This function is designed to round numbers downward to a specified number of digits, truncating the decimal portion and always rounding towards zero.<\/p>\n

Syntax<\/h2>\n

The syntax for the ROUNDDOWN function is identical across both Excel and Google Sheets:<\/p>\n

=ROUNDDOWN(number, num_digits)<\/code><\/pre>\n
    \n
  • number<\/code>: The number you wish to round down.<\/li>\n
  • num_digits<\/code>: The number of decimal places to which you want to round the number<\/code>.<\/li>\n<\/ul>\n
    Examples<\/h2>\n
    Rounding Down to the Nearest Integer<\/h2>\n
    To round a number down to the closest whole number, set the num_digits<\/code> argument to 0<\/code> in the ROUNDDOWN function:<\/p>\n\n\n\n\n
    Formula<\/th>\nResult<\/th>\n<\/tr>\n
    =ROUNDDOWN(15.7, 0)<\/code><\/td>\n15<\/td>\n<\/tr>\n
    =ROUNDDOWN(20.3, 0)<\/code><\/td>\n20<\/td>\n<\/tr>\n<\/table>\n
    Rounding Down to a Specific Decimal Place<\/h2>\n
    To round a number down to a particular decimal place, simply adjust the num_digits<\/code> argument accordingly:<\/p>\n\n\n\n\n
    Formula<\/th>\nResult<\/th>\n<\/tr>\n
    =ROUNDDOWN(3.14159, 3)<\/code><\/td>\n3.141<\/td>\n<\/tr>\n
    =ROUNDDOWN(99.9876, 2)<\/code><\/td>\n99.98<\/td>\n<\/tr>\n<\/table>\n
    Use Case: Financial Calculations<\/h2>\n
    The ROUNDDOWN function is particularly useful in financial scenarios, such as calculations of loan or investment interests, where precision to a certain number of decimal places is required. For instance, to compute interest while truncating the extra decimal digits:<\/p>\n
    =ROUNDDOWN(interest_rate * principal, 2)<\/code><\/pre>\n
    This formula calculates the interest by multiplying the interest rate with the principal and then rounding the result down to two decimal places.<\/p>\n
    Mastery of the ROUNDDOWN function allows you to refine numerical data in Excel and Google Sheets to meet your specific needs and maintain precision where it matters most.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Rounds a number down, toward zero<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198],"tags":[],"class_list":["post-395","post","type-post","status-publish","format-standard","hentry","category-math-and-trigonometry"],"acf":[],"yoast_head":"\nExcel ROUNDDOWN Function \u2013 How It Works, Formula Examples and Syntax<\/title>\n<meta name=\"description\" content=\"Learn what the Excel ROUNDDOWN function does. 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