Professor Excel
round, roundup, rounddown, excel

ROUND: How to Round Values in Excel

Today we talk about a basic topic in Excel: Rounding numbers. Excel provides three different versions of formulas for rounding number: ROUND, ROUNDUP and ROUNDDOWN. ROUNDUP and ROUNDDOWN always round numbers away or towards zero. In this article we take a closer look at the ROUND formula and explore advanced ways of applying it.

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wrong, calculations, excel

Wrong Calculations – Why Does Excel Show a Wrong Result?

Excel calculates wrong. Yes, in some cases, Excel will return wrong results. You don’t believe me? Then type the following formula into an empty Excel cell: =1*(0.5-0.4-0.1). The result should be 0. But what does Excel show?  -2,77556E-17. This is just a simple example, but when it comes to larger Excel models it can be quite annoying. Especially if you want to compare the result – let’s say you want to check the result with an IF-formula if it equals 0. So what is the reason for these obviously wrong calculations and how to solve it?

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