Excel ROUNDDOWN function
Always rounds down, toward zero: it cuts off the extra decimals. In Spanish Excel it is called REDONDEAR.MENOS.
Syntax
English Excel
=ROUNDDOWN(number, num_digits)
Spanish Excel (Mexico)
=REDONDEAR.MENOS(número, núm_decimales)
Spanish Excel (Spain, Latin America)
=REDONDEAR.MENOS(número; núm_decimales)
| Argument | What it is |
|---|---|
| number | The number to round. |
| num_digits | Digits to keep. |
Example
ROUNDUP always rounds up and ROUNDDOWN always rounds down, whatever the decimal. With 0 digits they count whole boxes, trips or payments.
=ROUNDDOWN(B2/C2,0)
Common mistake
With negatives it moves toward zero (-2.7 gives -2), unlike INT (-2.7 gives -3).
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Practice ROUNDDOWN
Type the formula in the sheet and check it instantly. Spanish or English function names both work. See all lessons
ROUNDUP and ROUNDDOWN
ROUNDUP always rounds up and ROUNDDOWN always rounds down, whatever the decimal. With 0 digits they count whole boxes, trips or payments.
In D2, calculate how many boxes all the pieces need (a half-full box still counts).
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | Product | Pieces | Per box | Boxes needed | Full boxes | |
| 2 | Screws | 250 | 40 | |||
| 3 | Nuts | 300 | 50 | |||
| 4 | Washers | 125 | 30 | |||
| 5 | Nails | 999 | 100 | |||
| 6 | Anchors | 64 | 12 | |||
| 7 |
Tip: while typing, click a cell or drag across several to insert their reference.
Frequently asked questions
- What is ROUNDDOWN called in Spanish?
- In Spanish Excel it is REDONDEAR.MENOS. The formula =ROUNDDOWN(B2/C2,0) is written =REDONDEAR.MENOS(B2/C2;0) (or with commas in Mexico).
- Why does ROUNDDOWN use semicolons in some Excel versions?
- It depends on regional settings. Where the comma is the decimal mark (Spain, much of South America), Excel separates arguments with semicolons. English Excel and Mexican Spanish Excel use commas.
- What is the most common ROUNDDOWN mistake?
- With negatives it moves toward zero (-2.7 gives -2), unlike INT (-2.7 gives -3).