TB to Bytes Converter

Convert terabytes to bytes instantly. Free TB to bytes converter with binary (1024) and decimal (1000) standards for programming and precise storage.

1 KB = 1,024 bytes — used by OS, RAM, file sizes

1 TB =

1,099,511,627,776B

Standard: Binary (1 KB = 1,024 B)

All Units

1 TB in every unit (binary)

Binary vs Decimal

Why your hard drive shows less space

1024
Binary (OS Reports)
1,099,511,627,776 bytes
1000
Decimal (Manufacturer)
1,000,000,000,000 bytes

Difference: 9.1% — this is why a "1 TB" drive shows ~931 GB in your OS

Transfer Time

Estimated time to transfer 1 TB

4G LTE (50 Mbps)1.9 days
5G (500 Mbps)4.4 hrs
Wi-Fi 5 (400 Mbps)5.6 hrs
Wi-Fi 6 (1 Gbps)2.2 hrs
100 Mbps Broadband22.2 hrs
Gigabit Ethernet2.2 hrs
USB 2.0 (480 Mbps)4.6 hrs
USB 3.0 (5 Gbps)26.7 min

How to Convert Terabyte to Byte

Formula with a worked example (binary (1024))

To convert terabyte (TB) to byte (B), use this formula:

Bytes = TB × 1,099,511,627,776 (binary) or TB × 1,000,000,000,000 (decimal)

Example: Convert 1 TB to B (binary (1024))

1 TB = 1.10e+12 B

To convert back, use: TB = Bytes ÷ 1,099,511,627,776 (binary) or Bytes ÷ 1,000,000,000,000 (decimal)

Terabyte to Byte Conversion Table

Quick reference (binary (1024))

TBB
0.001 TB1,099,511,627.78 B
0.01 TB10,995,116,277.76 B
0.1 TB109,951,162,777.6 B
0.5 TB549,755,813,888 B
1 TB1.10e+12 B
2 TB2.20e+12 B
5 TB5.50e+12 B
10 TB1.10e+13 B
50 TB5.50e+13 B
100 TB1.10e+14 B

Binary vs Decimal: Which Standard?

Why 1 TB can have two different values in B

There are two ways to define how many byte are in a terabyte:

Binary (1024-based)

1 TB = 1.10e+12 B

Used by: OS, RAM, file sizes

Decimal (1000-based)

1 TB = 1.00e+12 B

Used by: HDD/SSD manufacturers, networks

When Do You Need TB to B?

Common scenarios where this conversion comes in handy

1

exact byte calculations

2

disk image sizing

3

raw partition planning

4

hardware specification verification

Frequently Asked Questions

Common questions about converting terabyte to byte

Embed TB to Bytes Converter

Add this calculator to your website or blog for free.

Last updated Mar 24, 2026