Easily convert between kb and mb, gb, tb and vice versa in Excel
In data management and reporting, converting between different units of digital storage such as kilobytes (KB), megabytes (MB), gigabytes (GB), and terabytes (TB) is a common task. Whether you need to transform a list of file sizes from KB to MB or vice versa, accurate conversions are crucial for clear data analysis and presentation. This guide provides two effective methods to perform these conversions in Excel.
Comparison of Methods for Converting KB to MB, GB, or TB in Excel
Converting digital storage units such as kilobytes (KB), megabytes (MB), gigabytes (GB), and terabytes (TB) is common when managing file sizes, storage reports, or system logs. The following table compares the methods introduced in this article.
| Feature | Excel Formulas | Kutools Unit Conversion |
|---|---|---|
| Convert between KB, MB, GB, and TB | ✔ | ✔ |
| Supports reverse conversions | ✔ | ✔ |
| Batch conversion | Requires filling formulas | ✔ |
| Requires formulas | ✔ | ✘ |
| Requires remembering conversion factors | ✔ (1024-based) | ✘ |
| Select source and destination units from lists | ✘ | ✔ |
| Preview results before applying | ✘ | ✔ |
| Keep original values by adding converted results as comments | ✘ | ✔ |
| Supports Bits & Bytes conversion category | ✘ | ✔ |
| Setup process | Enter the appropriate formula using 1024-based calculations, then copy the formula to the remaining cells. | Select the range, choose Bits & Bytes, select the source and destination units, preview the results, then click OK or Apply. |
| Best for | Formula-based file size calculations that update automatically | Fast batch storage unit conversions without memorizing conversion formulas |
| Ease of use | Moderate | Very easy |
Convert between kb and mb, gb, tb and vice versa with formulas
The following conversion formulas can help converting between kilobytes (KB), megabytes (MB), gigabytes (GB), and terabytes (TB) assuming that 1 KB equals 1024 bytes, which is the standard in computing based on binary multiples. Here's a breakdown:
How to Use These Formulas in Excel:
Suppose you have a list of number of kilobytes (KB) in range A2:A7 and you want to find out how many megabytes (MB) that is, you would use the above first formula as follows.
Select a blank cell, such as C2, enter the following formula and press Enter. Select this formula cell, drag it Fill Handle down to get the rest of the results.
=A2 / 1024
- Conversely, if you have the number of megabytes (MB) in cell A2 and you want to convert this to kilobytes (KB), you would use the second formula =A2 * 1024.
- This conversion is based on the binary measurement used in computing, which is different from the decimal system used in everyday measurements where 1,000 units make up a single unit of the next higher measurement (like meters to kilometers). In digital storage, 1,024 units (bytes, kilobytes, etc.) make up a single unit of the next higher measurement due to the base-2 system used in computing.
Easily Convert between kb and mb, gb, tb and vice versa with Kutools for Excel
If the above formulas are hard to remember, here, I can talk about an easy tool-Kutools for Excel. With its Unit Conversion feature, you can quickly and easily convert between various units with several clicks only.
After installing Kutools for Excel, click Kutools > Content > Unit Conversion to open the Unit Conversion dialog box. And then configure as follows.
- Select the data range that you want to convert.
- Choose Bits & Bytes from the Units drop down.
- Specify the units that you want to convert between from the two list boxes.
Here I choose Kilobit and Megabit separately from the lists, which means that I will convert the numbers from KB to MB. - Click OK.
Result
All numbers in the selected range are converted from KB to MB immediately.
- If you want to convert mb to kb, just click
to exchange the units. - If you check Add results as comment option in the dialog box, the converted results will be inserted into the cells as comments.
- With this feature, you can also convert between angles, distances, temperatures, and so on.
- To use this feature, you should have Kutools for Excel installed on your computer. Go to download Kutools for Excel to get a 30-day free trial with no limitations.
to exchange the units.
Demo: Convert between kb and mb, gb, tb and vice versa with Kutools for Excel
Conclusion
Excel formulas provide a flexible way to convert between KB, MB, GB, and TB using the standard binary relationship of 1,024 units between each storage level. Because the conversions are formula-based, the results update automatically when the source values change. However, users need to remember the correct conversion formulas and copy them across the destination range.
Kutools for Excel's Unit Conversion offers a more intuitive approach by allowing users to select storage units from the Bits & Bytes category instead of manually calculating with 1,024-based formulas. It supports batch conversion, previews the converted values before applying them, and can preserve the original data by adding the converted results as comments. This makes it the more efficient choice for converting large lists of digital storage values.
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