The terabyte
The terabyte (TB) equals 10¹² bytes. Standard for hard-drive capacity. A 4K movie at typical streaming bitrate uses about 7 GB per hour, so 1 TB holds roughly 140 hours.
1 TB = 8000000000000 bit (terabyte → bit)
1 TB = 8000000000000 bit
1 terabyte equals 8000000000000 bits. To convert terabytes to bits, multiply the terabyte value by 8000000000000. For quick reference: 1 TB = 8000000000000 bit, 5 TB = 40000000000000 bit, 10 TB = 80000000000000 bit, 100 TB = 800000000000000 bit.
Bits = Terabytes × 8000000000000Terabytes to bits multiplies by 8 × 10¹². Mostly a datacenter-scale conversion: expressing a storage array's total capacity as an aggregate bit-count is how some SAN and RAID controllers report theoretical maximum addressable space in their firmware specs, even though every consumer-facing tool reports the same array in TB.
Storage-array firmware occasionally reports theoretical maximum addressable capacity as a raw bit-count in low-level diagnostics — a 16 TB RAID volume becomes 128 × 10¹² bits in that context, a number no dashboard shows a human but that shows up in controller logs and SAN vendor documentation. Engineers debugging addressing or checksum issues at the block-device level are the main audience; every consumer-facing tool reports the same array in TB or GB instead.
Start with your value in terabytes.
Multiply the terabyte value by 8000000000000. This is the exact conversion factor from terabytes to bits.
The product is your value in bits. For example, 5 TB × 8000000000000 = 40000000000000 bit.
The exact factor from terabytes to bits is 8000000000000.
Bits = Terabytes × 8000000000000
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Terabytes (TB) | Bits (bit) |
|---|---|
| 1 TB | 8000000000000 bit |
| 8 TB | 64000000000000 bit |
| 16 TB | 128000000000000 bit |
| 64 TB | 512000000000000 bit |
| 100 TB | 800000000000000 bit |
| 256 TB | 2.0480 × 10^15 bit |
| 500 TB | 4.0000 × 10^15 bit |
| 512 TB | 4.0960 × 10^15 bit |
| 1000 TB | 8.0000 × 10^15 bit |
| 1024 TB | 8.1920 × 10^15 bit |
| 2000 TB | 1.6000 × 10^16 bit |
| 2048 TB | 1.6384 × 10^16 bit |
| 4096 TB | 3.2768 × 10^16 bit |
| 5000 TB | 4.0000 × 10^16 bit |
| 8192 TB | 6.5536 × 10^16 bit |
| 10000 TB | 8.0000 × 10^16 bit |
| 16384 TB | 1.3107 × 10^17 bit |
| 25000 TB | 2.0000 × 10^17 bit |
| 32768 TB | 2.6214 × 10^17 bit |
| 50000 TB | 4.0000 × 10^17 bit |
| 65536 TB | 5.2429 × 10^17 bit |
| 100000 TB | 8.0000 × 10^17 bit |
| 131072 TB | 1.0486 × 10^18 bit |
| 250000 TB | 2.0000 × 10^18 bit |
| 500000 TB | 4.0000 × 10^18 bit |
| 524288 TB | 4.1943 × 10^18 bit |
| 1000000 TB | 8.0000 × 10^18 bit |
| 1048576 TB | 8.3886 × 10^18 bit |
| 2000000 TB | 1.6000 × 10^19 bit |
| 5000000 TB | 4.0000 × 10^19 bit |
| 10000000 TB | 8.0000 × 10^19 bit |
| 50000000 TB | 4.0000 × 10^20 bit |
| 100000000 TB | 8.0000 × 10^20 bit |
| 500000000 TB | 4.0000 × 10^21 bit |
| 1000000000 TB | 8.0000 × 10^21 bit |
| 2000000000 TB | 1.6000 × 10^22 bit |
| 5000000000 TB | 4.0000 × 10^22 bit |
| 10000000000 TB | 8.0000 × 10^22 bit |
| 50000000000 TB | 4.0000 × 10^23 bit |
| 100000000000 TB | 8.0000 × 10^23 bit |
| 500000000000 TB | 4.0000 × 10^24 bit |
| 1000000000000 TB | 8.0000 × 10^24 bit |
| 2000000000000 TB | 1.6000 × 10^25 bit |
| 5000000000000 TB | 4.0000 × 10^25 bit |
| 10000000000000 TB | 8.0000 × 10^25 bit |
| 100000000000000 TB | 8.0000 × 10^26 bit |
| 1000000000000000 TB | 8.0000 × 10^27 bit |
| 10000000000000000 TB | 8.0000 × 10^28 bit |
| 100000000000000000 TB | 8.0000 × 10^29 bit |
| 1000000000000000000 TB | 8.0000 × 10^30 bit |
A consumer NAS typically holds 4–32 TB across multiple drives. 1 TB of cloud storage is the standard 'pro' tier on most consumer plans.
The terabyte (TB) equals 10¹² bytes. Standard for hard-drive capacity. A 4K movie at typical streaming bitrate uses about 7 GB per hour, so 1 TB holds roughly 140 hours.
A bit is the smallest unit of digital information — a single 0 or 1. Eight bits make one byte. The bit is the natural unit for bandwidth (most network speeds are quoted in bits per second, not bytes).
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