Terabyte to Megabyte Converter (TB to MB)
1 terabyte equals 1,000,000 megabytes — multiply the number of terabytes by 1,000,000 to convert to megabytes. In decimal (SI) storage units a terabyte is a thousand gigabytes, and each gigabyte is a thousand megabytes, so a terabyte is a million megabytes.
The formula
To convert terabytes to megabytes, multiply by the exact factor 1,000,000:
MB = TB × 1000000
For example, 3 TB × 1000000 = 3000000 MB. To reverse it, divide megabytes by 1,000,000.
Conversion table
| Terabytes (TB) | Megabytes (MB) |
|---|---|
| 1 | 1000000 |
| 2 | 2000000 |
| 3 | 3000000 |
| 5 | 5000000 |
| 10 | 10000000 |
| 25 | 25000000 |
| 50 | 50000000 |
| 100 | 100000000 |
| 250 | 250000000 |
| 500 | 500000000 |
| 1000 | 1000000000 |
How to convert online
Type the number of terabytes in the first box and read the megabytes instantly in the second. Enter a megabyte value instead to convert back — it works both ways — then copy the result or scan the reference table.
Use the Terabyte to Megabyte Converter — free and instant in your browser.
Where this conversion is needed
TB-to-MB conversions are useful when a disk or backup is sized in terabytes but individual files, photos and videos are measured in megabytes. Converting to megabytes helps you estimate how many items fit, or how large a dataset really is in the units your tools report.
FAQ
How many megabytes are in a terabyte?
One terabyte equals 1,000,000 megabytes. Multiply terabytes by 1,000,000, so 10 TB = 10,000,000 MB.
What is the formula to convert TB to MB?
MB = TB × 1000000. The converter applies this exact factor automatically.
How do I convert megabytes back to terabytes?
Divide by 1,000,000. So 5,000,000 MB = 5 TB.
Is the conversion exact?
Yes, in decimal (SI) units it is exact. Binary units differ: 1 TiB = 1,048,576 MiB, which is why some software reports slightly different numbers.
Related converters
- Megabyte to Terabyte Converter
- Terabyte to Gigabyte Converter
- Terabyte to Kilobyte Converter
- Terabyte to Byte Converter
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Recommended reading
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