Tb to Gb Converter
Convert terabytes to gigabytes easily. Free TB to GB storage converter.
Formula
GB = TB × 1024
Common Conversions
How to Convert TB to GB
1 TB = 1,024 GB (binary) or 1,000 GB (decimal). Multiply TB by 1,024 (or 1,000). So 5 TB = 5,120 GB binary, or 5,000 GB decimal. The binary value is what your OS reports; the decimal is what the manufacturer puts on the box.
Useful when purchasing storage and planning capacity. A 2 TB drive marketed by capacity = 2,000 GB decimal = 1,863 GB binary as your OS will show it. The 137 GB difference is real - your OS files don't see capacity that the manufacturer labelled.
Common TB to GB
| Terabytes | Gigabytes (binary) | Gigabytes (decimal) |
|---|---|---|
| 0.5 TB | 512 GB | 500 GB |
| 1 TB | 1024 GB | 1000 GB |
| 2 TB | 2048 GB | 2000 GB |
| 3 TB | 3072 GB | 3000 GB |
| 4 TB | 4096 GB | 4000 GB |
| 8 TB | 8192 GB | 8000 GB |
| 12 TB | 12288 GB | 12000 GB |
| 20 TB | 20480 GB | 20000 GB |
Frequently Asked Questions
Should I buy a TB drive or multiple GB drives?
TB drives almost always cheaper per GB at consumer level. A 4 TB drive often costs less than 4× a 1 TB drive. Multiple smaller drives offer redundancy through RAID setups - 2× 4 TB drives in RAID 1 give 4 TB usable plus mirroring.
What's a petabyte?
1 PB = 1,024 TB (binary) or 1,000 TB (decimal). Mostly relevant in enterprise/data-center contexts. Personal storage rarely reaches PB scale. Massive media archives (video production studios, scientific research) can be in PB.
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