Convert exabytes to petabytes
1 EB is 1,024 PB in the binary standard and 1,000 PB in the decimal one. Type a number of exabytes and the converter shows it in petabytes straight away. You pick the standard with the switch under the fields: binary matches what Windows reports, decimal matches data center announcements and spec sheets.
How many petabytes are in an exabyte?
An exabyte holds 1,024 petabytes in the binary standard and 1,000 petabytes in the decimal one. Formally an exabyte is 1018 bytes, while the power-of-two version is called an exbibyte and has 260 bytes[1]. Windows counts in powers of two, even though it labels the result PB and EB[2].
The conversion is a single multiplication. Four exabytes are 4,096 PB in binary and 4,000 PB in decimal. In Excel, the CONVERT function does it with the units "Ebyte" and "Pbyte", or "Eibyte" and "Pibyte" for binary, as shown next to the PB to EB converter.
How much is an exabyte in TB, GB and bytes?
| 1 EB is | Binary (1024) | Decimal (1000) |
|---|---|---|
| petabytes | 1,024 PB | 1,000 PB |
| terabytes | 1,048,576 TB | 1,000,000 TB |
| gigabytes | 1,073,741,824 GB | 1,000,000,000 GB |
| bytes | 1,152,921,504,606,846,976 B | 1,000,000,000,000,000,000 B |
How many petabytes is a given number of exabytes?
| Exabytes | Binary (1024) | Decimal (1000) |
|---|---|---|
| 0.001 EB | 1.024 PB | 1 PB |
| 0.01 EB | 10.24 PB | 10 PB |
| 0.1 EB | 102.4 PB | 100 PB |
| 0.25 EB | 256 PB | 250 PB |
| 0.5 EB | 512 PB | 500 PB |
| 0.75 EB | 768 PB | 750 PB |
| 1 EB | 1,024 PB | 1,000 PB |
| 1.5 EB | 1,536 PB | 1,500 PB |
| 2 EB | 2,048 PB | 2,000 PB |
| 3 EB | 3,072 PB | 3,000 PB |
| 4 EB | 4,096 PB | 4,000 PB |
| 5 EB | 5,120 PB | 5,000 PB |
| 10 EB | 10,240 PB | 10,000 PB |
| 50 EB | 51,200 PB | 50,000 PB |
| 100 EB | 102,400 PB | 100,000 PB |
| 1,000 EB | 1,024,000 PB | 1,000,000 PB |
How much data is an exabyte in practice?
An exabyte is roughly what the Large Hadron Collider at CERN gathered in more than fifteen years of running. In December 2025 CERN announced that the first exabyte of experimental data from the LHC, a million terabytes, had reached its storage system[3]. In decimal that is 1,000 PB; Windows would show the same amount as about 888 PB.
National mobile networks now move data on the same scale. Ofcom's Connected Nations report, published in November 2025, puts UK mobile data use at over 1.2 billion gigabytes each month, or 1,257 PB[4]. That is about 1.26 EB a month: type 1.26 with the Decimal (1000) setting and the converter shows 1,260 PB.
When you compare two figures in exabytes, check that both use the same standard. The standards are only 2.4% apart for this pair, but with exabytes that means tens of petabytes.
Which number formats does this converter accept?
| What you type | What the converter shows | How we read it |
|---|---|---|
| 0.25 | 256 PB | The point separates the decimal part, so we count a quarter of an exabyte |
| 1,5 | 1536 PB | A comma before a single digit can only be a decimal comma, as in European documents, so we read one and a half exabytes |
| 1,500 | 1,536,000 PB | A comma before three digits is a thousands separator in English, so we count fifteen hundred exabytes. A hint appears under the field in case you meant 1.5. |
| 1.500 | 1536 PB | A single point always counts as a decimal point, so we read one and a half exabytes. A hint appears under the field, and for fifteen hundred you type 1500 or 1,500. |
| 10,000 | 10,240,000 PB | The comma groups the thousands, so the field holds ten thousand exabytes. A hint appears under the field in case you meant 10 exabytes. |
| ½ | 512 PB | A ½ sign copied from text becomes half an exabyte |
| 1e-3 | 1.024 PB | Scientific notation from a spreadsheet is read as it is: 1e-3 is a thousandth of an exabyte |
| 2 Exabytes | 2048 PB | The field's own unit written as a word is skipped, and only the number stays |
| 512 PB | 512 PB | Petabytes pasted into the exabyte field are written as 0.5 EB, with a note under the field, so the result comes back as the same 512 PB |
| Capacity: 1 EB | 1024 PB | A line copied from an announcement or spec sheet works too, because we take the number right before the unit |
Convert other units to Petabytes
Convert Exabytes to other units
Sources
- Byte — Wikipedia
- Binary prefix — Wikipedia
- CERN hits one exabyte of stored experimental data from the LHC — CERN
- UK mobile data use climbs to over 1.2 billion gigabytes each month — Ofcom
- Long and short scales — Wikipedia
Every figure in the tables was computed from the unit definitions and checked arithmetically before publication. Historical values and the names of local units come from the sources listed above.
Content last reviewed: · written and checked by the Arteon team
Frequently asked questions about exabytes and petabytes
Is an exabyte a quintillion bytes?
Yes. In English 1018 is a quintillion, so a decimal exabyte holds a quintillion bytes. Watch out when reading European sources: in German, French, Spanish, Italian, Polish and Czech the same number is called a trillion, while the English trillion is only 1012[5].
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