How many petabytes are in 1 terabyte?

1 TB equals 0.001 PB. This is an exact conversion factor defined by NIST.

How do I convert terabytes to petabytes?

Multiply the value in TB by the conversion factor. For example, 10 TB = 0.01 PB. Use our calculator above for instant results.

Is the terabytes to petabytes conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

Can I convert terabytes to petabytes offline?

Yes! OmniConvert runs entirely in your browser — no internet connection needed after the page loads. Your data never leaves your device, ensuring complete privacy.

What is the difference between terabytes and petabytes?

Terabytes (TB) and Petabytes (PB) are both units of digital storage but belong to different measurement systems. 1 TB = 0.001 PB. Use the converter above to switch between them instantly.

Terabytes to Petabytes (TB → PB) — Free Online Converter

TB → PB Reference Table

TB	PB
0.001 TB	0.000001 PB
0.002 TB	0.000002 PB
0.003 TB	0.000003 PB
0.004 TB	0.000004 PB
0.005 TB	0.000005 PB
0.006 TB	0.000006 PB
0.007 TB	0.000007 PB
0.008 TB	0.000008 PB
0.009 TB	0.000009 PB
0.01 TB	0.00001 PB
0.02 TB	0.00002 PB
0.03 TB	0.00003 PB
0.04 TB	0.00004 PB
0.05 TB	0.00005 PB
0.06 TB	0.00006 PB
0.07 TB	0.00007 PB
0.08 TB	0.00008 PB
0.09 TB	0.00009 PB
0.1 TB	0.0001 PB
0.2 TB	0.0002 PB
0.3 TB	0.0003 PB
0.4 TB	0.0004 PB
0.5 TB	0.0005 PB
0.6 TB	0.0006 PB
0.7 TB	0.0007 PB
0.8 TB	0.0008 PB
0.9 TB	0.0009 PB
1 TB	0.001 PB
1.5 TB	0.0015 PB
2 TB	0.002 PB
2.5 TB	0.0025 PB
3 TB	0.003 PB
3.5 TB	0.0035 PB
4 TB	0.004 PB
4.5 TB	0.0045 PB
5 TB	0.005 PB
5.5 TB	0.0055 PB
6 TB	0.006 PB
6.5 TB	0.0065 PB
7 TB	0.007 PB
7.5 TB	0.0075 PB
8 TB	0.008 PB
8.5 TB	0.0085 PB
9 TB	0.009 PB
9.5 TB	0.0095 PB
10 TB	0.01 PB
11 TB	0.011 PB
12 TB	0.012 PB
13 TB	0.013 PB
14 TB	0.014 PB
15 TB	0.015 PB
16 TB	0.016 PB
17 TB	0.017 PB
18 TB	0.018 PB
19 TB	0.019 PB
20 TB	0.02 PB
25 TB	0.025 PB
30 TB	0.03 PB
35 TB	0.035 PB
40 TB	0.04 PB
45 TB	0.045 PB
50 TB	0.05 PB
55 TB	0.055 PB
60 TB	0.06 PB
65 TB	0.065 PB
70 TB	0.07 PB
75 TB	0.075 PB
80 TB	0.08 PB
85 TB	0.085 PB
90 TB	0.09 PB
95 TB	0.095 PB
100 TB	0.1 PB
120 TB	0.12 PB
125 TB	0.125 PB
130 TB	0.13 PB
140 TB	0.14 PB
150 TB	0.15 PB
160 TB	0.16 PB
175 TB	0.175 PB
180 TB	0.18 PB
200 TB	0.2 PB
225 TB	0.225 PB
250 TB	0.25 PB
275 TB	0.275 PB
300 TB	0.3 PB
350 TB	0.35 PB
400 TB	0.4 PB
450 TB	0.45 PB
500 TB	0.5 PB
600 TB	0.6 PB
700 TB	0.7 PB
750 TB	0.75 PB
800 TB	0.8 PB
900 TB	0.9 PB
1000 TB	1 PB
1200 TB	1.2 PB
1250 TB	1.25 PB
1500 TB	1.5 PB
1750 TB	1.75 PB
2000 TB	2 PB
2500 TB	2.5 PB
3000 TB	3 PB
4000 TB	4 PB
4500 TB	4.5 PB
5000 TB	5 PB
6000 TB	6 PB
7000 TB	7 PB
7500 TB	7.5 PB
8000 TB	8 PB
9000 TB	9 PB
10000 TB	10 PB
15000 TB	15 PB
20000 TB	20 PB
25000 TB	25 PB
50000 TB	50 PB
75000 TB	75 PB
100000 TB	100 PB

Values based on NIST SP 811 conversion factors

Why Convert Terabytes to Petabytes?

Converting between terabytes (TB) and petabytes (PB) is one of the most common digital storage conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert TB to PB saves time and prevents errors.

Digital storage conversions (TB to PB) are essential for IT professionals, content creators, and everyday computer users. Understanding the difference between bits and bytes is crucial when calculating internet speeds versus file sizes. Photographers and video editors need to convert terabytes and gigabytes to manage backups and estimate cloud storage costs. Confusion often arises between binary (1024) and decimal (1000) prefixes used by hardware manufacturers versus operating systems, leading to apparent 'missing' space on hard drives. Accurate conversion helps in planning server capacity, data transfer times, and device purchases.

How to Convert Terabytes to Petabytes

To convert terabytes to petabytes, use the following formula:

PB = TB × 0.001

Example: 1 TB = 0.001 PB

For example, 5 TB = 0.005 PB, 10 TB = 0.01 PB, and 100 TB = 0.1 PB. For larger values, 1000 TB = 1 PB. Conversely, 1 PB = 1000 TB. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Mistakes to Avoid

Bit vs Byte: 1 Byte = 8 Bits. Internet speed is usually bits (Mb/s), file size is Bytes (MB).
Base 10 vs Base 2: Hard drive makers use Base 10 (1KB=1000B), OS uses Base 2 (1KiB=1024B).
B vs b: MB is Megabyte, Mb is Megabit.

Pro Tips

Storage buying: A 1TB drive usually shows as ~930GB in Windows due to decimal/binary difference.
Data caps: Streaming HD video uses ~3GB/hour.
Backup rule: 3-2-1 rule: 3 copies, 2 media types, 1 offsite.

What is a Terabyte?

10¹² bytes.

Hard drives.

What is a Petabyte?

10¹⁵ bytes.

Data centers.

Terabytes → Petabytes

Terabytes to Petabytes Formula