Convert Terabytes to Megabytes (TB to MB)
1 terabyte (TB) = 1000000 megabytes (MB). 1 MB = 0.000001 TB. Example: 15 TB = 15 × 1000000 = 15000000 MB.
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1 TB = 1000000 MB
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk terabyte to megabyte converter to paste a column from Excel.
How to Convert Terabyte to Megabyte
- 1 TB = 1000000 MB
- 1 MB = 0.000001 TB
- Example: convert 15 TB to MB: 15 TB = 15 × 1000000 MB = 15000000 MB
Formula
MB = TB × 1000000
Derivation from SI units:
- 1 TB = 10¹² bytes = 1000 GB.
- 1 MB = 10⁶ bytes = 8 × 10⁶ bits (decimal, SI).
- 1 TB = 8000000000000 bit ÷ 8000000 bit per MB = 1000000 MB
Both units are defined exactly, so the factor is exact. Terabyte definition: terabyte; Megabyte definition: megabyte.
Worked examples
- A reading of 4 TB converts to 4000000 MB.
4 TB × 1000000 = 4000000 MB - A value of 12 TB is 12000000 MB.
12 TB × 1000000 = 12000000 MB
Terabyte to Megabyte conversion table
| Terabytes (TB) | Megabytes (MB) |
|---|---|
| 0.5 TB | 500000 MB |
| 1 TB | 1000000 MB |
| 2 TB | 2000000 MB |
| 4 TB | 4000000 MB |
| 8 TB | 8000000 MB |
| 10 TB | 10000000 MB |
| 12 TB | 12000000 MB |
| 16 TB | 16000000 MB |
| 20 TB | 20000000 MB |
| 24 TB | 24000000 MB |
Where it's used
Terabytes are used for hard drives and SSDs, while megabytes appear in photos, documents and songs. Both measure amount of digital information, so the conversion is a fixed factor.
Terabyte to other data storage units
| Conversion | 1 TB equals |
|---|---|
| terabyte to megabyte | 1000000 MB |
| terabyte to byte | 1000000000000 B |
| terabyte to kilobyte | 1000000000 kB |
| terabyte to gigabyte | 1000 GB |
| terabyte to bit | 8000000000000 bit |
| terabyte to megabit | 8000000 Mbit |
| terabyte to kibibyte | 976562500 KiB |
| terabyte to mebibyte | 953674.3164 MiB |
Show 5 more units
| terabyte to gibibyte | 931.3225746 GiB |
|---|---|
| terabyte to kilobit | 8000000000 kbit |
| terabyte to gigabit | 8000 Gbit |
| terabyte to petabyte | 0.001 PB |
| terabyte to tebibyte | 0.9094947018 TiB |
Frequently asked questions
How many megabytes are in 1 terabyte?
1 TB = 1000000 MB.
How do I convert terabytes to megabytes?
Multiply the value in TB by 1000000. For example, 15 TB × 1000000 = 15000000 MB.
Is the TB to MB conversion exact?
Yes. Both units are defined exactly, and 1 TB is exactly 1000000 MB.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Terabytes to Megabytes (TB to MB). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/terabytes-to-megabytes/
IEEE
Scientific Converters, "Convert Terabytes to Megabytes (TB to MB)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/terabytes-to-megabytes/