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Terabyte to Petabyte Converter

Type a value — the answer appears instantly. 1 TB = 0.001 PB.

Reviewed by the OmniCalc teamMethod verified 2026-07-01

From unit

To unit
Result

0.001 petabytes

= 1,000 GB= 1,000,000,000,000 B

equals 0.001 petabytes

Formula: PB = TB × 0.001

Terabyte to Petabyte formula

PB = TB × 0.001

Convert 5 terabytes to petabytes

  1. Start with 5 terabytes.
  2. Multiply by the conversion factor: 5 × 0.001 = 0.005.
  3. So 5 TB = 0.005 PB.

Terabyte to Petabyte conversion table

Terabyte to Petabyte conversion table
Terabytes (TB)Petabytes (PB)
0.01 TB0.00001 PB
0.1 TB0.0001 PB
0.25 TB0.00025 PB
0.5 TB0.0005 PB
1 TB0.001 PB
2 TB0.002 PB
3 TB0.003 PB
4 TB0.004 PB
5 TB0.005 PB
6 TB0.006 PB
7 TB0.007 PB
8 TB0.008 PB
9 TB0.009 PB
10 TB0.01 PB
15 TB0.015 PB
20 TB0.02 PB
25 TB0.025 PB
30 TB0.03 PB
40 TB0.04 PB
50 TB0.05 PB
75 TB0.075 PB
100 TB0.1 PB
250 TB0.25 PB
500 TB0.5 PB
1,000 TB1 PB
5,000 TB5 PB
10,000 TB10 PB

Unit definitions

What is a terabyte?

The terabyte (decimal) is one trillion bytes (1000⁴) under the SI convention. Modern hard drives and large media libraries are measured in terabytes. It differs from the binary tebibyte (1024⁴ bytes).

What is a petabyte?

The petabyte (decimal) is 1000⁵ bytes, or one thousand terabytes. It is used for data-centre storage, scientific datasets, and cloud infrastructure. Large tech platforms handle many petabytes of data.

Frequently asked questions

How many petabytes are in one terabyte?

One terabyte equals 0.001 petabytes (1 TB = 0.001 PB).

How do I convert terabytes to petabytes?

Multiply the value in terabytes by 0.001. For example, 10 TB × 0.001 = 0.01 PB.

Which is bigger — a terabyte or a petabyte?

A petabyte is bigger: one petabyte contains 1,000 terabytes.

Is this terabyte to petabyte converter free?

Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.

Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.