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TRUNC Function in Excel: Syntax, Examples and Free Practice

By Rinkesh Shah, founder of Cellgrids.

TRUNC is an Excel Math & Trig function. Cuts off the decimal part of a number without rounding.

TRUNC syntax

=TRUNC(number, [num_digits])

Arguments

When to use TRUNC

TRUNC is used in financial models and engineering-style calculations where precise numeric work is needed.

Practice TRUNC online, free

Open the live Excel-style spreadsheet and try TRUNC yourself. No Excel install or sign-up needed to start.

Practice TRUNC now →

More Math & Trig functions

Frequently asked questions

What does the TRUNC function do in Excel?

Cuts off the decimal part of a number without rounding.

What is the syntax of TRUNC in Excel?

The syntax is =TRUNC(number, [num_digits]). number: A number to use in the calculation; num_digits: How many decimal places to round to (optional).

Where can I practice TRUNC online for free?

Open the free live spreadsheet on Cellgrids and try TRUNC yourself. No Excel install is needed and you can start without signing up.

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