Terabytes to Bytes Converter

About the tb to b calculation

One terabyte is exactly 1,000,000,000,000 bytes, so converting between them is a single multiplication. Enter any value above and the result updates as you type. Decimal terabyte — 1,000,000,000,000 bytes. Eight bits, and the base unit every other storage figure is built from.

Formula

B = TB × 1,000,000,000,000

1 TB = 1,000,000,000,000 B
1 B = 1.0000e-12 TB

Worked example

To convert 1 TB, multiply by 1,000,000,000,000: 1 × 1,000,000,000,000 = 1,000,000,000,000 B.

Frequently asked questions

How many bytes are in a terabyte?

There are 1,000,000,000,000 bytes in one terabyte. To convert any amount, multiply the number of terabytes by 1,000,000,000,000.

How do I convert bytes back to terabytes?

Divide instead of multiplying, or equivalently multiply by 1.0000e-12. One byte is 1.0000e-12 terabytes.

Is this conversion exact?

Yes, provided both sides use the same convention. Decimal units (KB, MB, GB) are powers of 1,000 and binary units (KiB, MiB, GiB) are powers of 1,024. Both are exact — the confusion comes from software labelling binary values with decimal names.

Where is each of these units used?

Terabytes: decimal terabyte — 1,000,000,000,000 bytes. Bytes: eight bits, and the base unit every other storage figure is built from.

Sources

• IEC 80000-13 — binary and decimal prefixes for information units