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Convert Terabytes to Bytes

One terabyte equals 1,099,511,627,776 bytes. Type any value to convert terabytes to bytes instantly — with a full reference table below.

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Convert Terabytes to Bytes

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Formula

How to convert Terabytes to Bytes

To convert terabytes to bytes, multiply by 1,099,511,627,776. One terabyte equals 1,099,511,627,776 B, and one byte equals 9.09495 × 10⁻¹³ TB.

  1. Take the value in terabytes — for example 3 TB.
  2. Multiply by 1,099,511,627,776 (the number of bytes in one terabyte).
  3. 3 × 1,099,511,627,776 = 3,298,534,883,328 B.

Terabytes to Bytes conversion table

TerabytesBytes
1 TB1,099,511,627,776 B
2 TB2,199,023,255,552 B
4 TB4,398,046,511,104 B
5 TB5,497,558,138,880 B
8 TB8,796,093,022,208 B
10 TB10,995,116,277,760 B
16 TB17,592,186,044,416 B
20 TB21,990,232,555,520 B
32 TB35,184,372,088,832 B
50 TB54,975,581,388,800 B
64 TB70,368,744,177,664 B
100 TB109,951,162,777,600 B
128 TB140,737,488,355,328 B
256 TB281,474,976,710,656 B
512 TB562,949,953,421,312 B
1,024 TB1.1259 × 10¹⁵ B
BytesTerabytes
1 B9.09495 × 10⁻¹³ TB
2 B1.81899 × 10⁻¹² TB
4 B3.63798 × 10⁻¹² TB
5 B4.54747 × 10⁻¹² TB
8 B7.27596 × 10⁻¹² TB
10 B9.09495 × 10⁻¹² TB
16 B1.45519 × 10⁻¹¹ TB
20 B1.81899 × 10⁻¹¹ TB
32 B2.91038 × 10⁻¹¹ TB
50 B4.54747 × 10⁻¹¹ TB
64 B5.82077 × 10⁻¹¹ TB
100 B9.09495 × 10⁻¹¹ TB
128 B1.16415 × 10⁻¹⁰ TB
256 B2.32831 × 10⁻¹⁰ TB
512 B4.65661 × 10⁻¹⁰ TB
1,024 B9.31323 × 10⁻¹⁰ TB

About converting Terabytes to Bytes

Terabytes (TB) and Bytes (B) are both units of data storage. The exact factor is 1 TB = 1,099,511,627,776 B, so multiply by 1,099,511,627,776 to go from terabytes to bytes (or divide to go back).

The conversion runs entirely in your browser. Need the reverse? Use the Bytes to Terabytes converter, or the full unit converter for every unit at once.

Binary vs decimal: why your drive looks smaller

Windows and RAM reports count in powers of 1,024 (binary, sometimes written KiB/MiB/GiB); drive makers, macOS and mobile carriers count in powers of 1,000 (decimal). Same bytes, two answers:

TerabytesBytes (binary · Windows)Bytes (decimal · on the box)
1 TB1,099,511,627,776 B1,000,000,000,000 B
2 TB2,199,023,255,552 B2,000,000,000,000 B
4 TB4,398,046,511,104 B4,000,000,000,000 B
5 TB5,497,558,138,880 B5,000,000,000,000 B
8 TB8,796,093,022,208 B8,000,000,000,000 B
10 TB10,995,116,277,760 B10,000,000,000,000 B
16 TB17,592,186,044,416 B16,000,000,000,000 B
20 TB21,990,232,555,520 B20,000,000,000,000 B
32 TB35,184,372,088,832 B32,000,000,000,000 B
50 TB54,975,581,388,800 B50,000,000,000,000 B

Example: a “1 TB” drive holds 10¹² bytes, which Windows shows as about 931 GB.

Real-world data storage in terabytes and bytes

ExampleTerabytesBytes
A page of plain text≈ 1.81899 × 10⁻⁹ TB≈ 2,000 B
A 4-minute MP3 at 128 kbps0.0000034925 TB3,840,000 B
A CD0.000667572 TB734,003,200 B
A single-layer DVD (4.7 GB)0.00427463 TB4,700,000,000 B
A 50 GB dual-layer Blu-ray0.0454747 TB50,000,000,000 B

“≈” marks typical values; the rest are defined or measured figures.

The units

Terabytes (TB)

Here, 1,024 GB = 1,099,511,627,776 bytes (TiB). Decimal terabyte = 10¹² bytes.

Used for: Hard drives and cloud storage.

Bytes (B)

8 bits — enough to store one Latin character.

Used for: File sizes.

This page uses binary units (1 KB = 1,024 bytes), which is how Windows and most RAM reports count. Storage makers and macOS use decimal units (1 kB = 1,000 bytes), so both are shown below.

Frequently asked questions

5 answers
How many bytes are in one terabyte?
One terabyte equals 1,099,511,627,776 bytes.
How do I convert terabytes to bytes?
Multiply the number of terabytes by 1,099,511,627,776. For example, 10 terabytes = 10,995,116,277,760 bytes.
What is 5 terabytes in bytes?
5 terabytes is 5,497,558,138,880 bytes.
Is a terabyte bigger than a byte?
Yes. One terabyte equals 1,099,511,627,776 bytes, so it is 1,099,511,627,776 times larger.
How many bytes is a CD?
A CD is 734,003,200 bytes (0.000667572 terabytes).