Terabits to Petabytes
Convert Terabits to Petabytes instantly. Free online digital storage unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Context values
Some unit families need one extra value for a physically accurate result.
Use the converter to see the formula.
Results update instantly for Terabits to Petabytes conversions.
Reserved above the conversion cards and below the converter.
Formula
PB = Tb × 0.000125
Tb = PB ÷ 0.000125
Conversion table
| 1 Tb | 0.000125 PB |
| 5 Tb | 0.000625 PB |
| 10 Tb | 0.00125 PB |
| 20 Tb | 0.0025 PB |
| 50 Tb | 0.00625 PB |
| 100 Tb | 0.0125 PB |
| 500 Tb | 0.0625 PB |
| 1000 Tb | 0.125 PB |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
What is the source unit in this conversion?
The source unit is the terabit (Tb), a decimal (SI) unit of digital storage equal to 10^12 bits.
What is the destination unit in this conversion?
The destination unit is the petabyte (PB), a decimal unit of digital storage equal to 1,000 terabytes, or 10^15 bytes.
How do I convert terabits to petabytes?
Multiply the terabit value by 0.000125 to get petabytes. For example, 4 Tb × 0.000125 = 0.0005 PB.
Is the terabit to petabyte conversion exact?
It's exact under the decimal (SI) definitions used here, where each decimal storage prefix is a fixed factor of 1,000 from the next (and bytes are a fixed factor of 8 from bits).
Where is this conversion commonly used?
It's used for describing file sizes, storage drive capacity, RAM, network bandwidth, and internet data plans or downloads.
Can I convert petabytes back to terabits?
Yes. Divide the petabyte value by 0.000125 to get terabits.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts terabits (Tb), a decimal (SI) unit of digital storage equal to 10^12 bits, into petabytes (PB), a decimal unit of digital storage equal to 1,000 terabytes, or 10^15 bytes.
This conversion is used constantly when checking file sizes, storage drive and memory capacity, network bandwidth, and mobile or broadband data plan allowances.
The formula is PB = Tb × 0.000125, based on the fixed relationship between these two digital storage units.
It's exact under the decimal (SI) definitions used here, where each decimal storage prefix is a fixed factor of 1,000 from the next (and bytes are a fixed factor of 8 from bits).
Digital storage prefixes follow the International System of Units (SI) for decimal units and the International Electrotechnical Commission (IEC) recommendations for binary units, keeping decimal and binary quantities unambiguous.