Terabytes (TB) to Exabytes (EB) Converter
Enter your Terabytes (TB) value to convert to Exabytes (EB). 1 TB = 0.000001 EB, calculated across both decimal (SI) and binary (IEC) standards.
Convert Terabytes to Exabytes
Do you want to convert exabytes to terabytes?
How to Convert Terabytes to Exabytes
To convert terabytes to exabytes, divide by 1,000,000 (using SI decimal). Both units measure storage capacity—the difference is scale. Related: EB → TB.
TB: A terabyte is 1,000 gigabytes or 1,000,000,000,000 bytes. Common size for modern hard drives and SSDs. Learn more: convert TB to TiB.
EB: An exabyte is 1,000 petabytes or 10^18 bytes. Used to measure global internet traffic and massive data volumes. You might also need: Yb to EB calculator.
1 TB = 0.000001 EB (using SI decimal standard) — or equivalently, 1 EB = 1,000,000TB.
TB to EB Conversion Formula
// Convert TB to EB
EB = TB × 0.000001
// Reverse: Convert EB to TB
TB = EB × 1,000,000
TB to EB Conversion Examples
100 TB = 0.0001 EB
256 TB = 0.000256 EB
500 TB = 0.0005 EB
1,000 TB = 0.001 EB
2,048 TB = 0.002048 EB
Binary Standard (Base 1024)
Using binary calculation: 1 TB = 0.000000953674316 EB
100 TB = 0.000095367431641 EB
1,000 TB = 0.000953674316 EB
1,024 TB = 0.0009765625 EB
What Is a Terabyte?
A terabyte is 1,000 gigabytes or 1,000,000,000,000 bytes. Common size for modern hard drives and SSDs. Related: EiB to PB converter.
The terabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. You might also need: Tbps to GB/s.
Common uses: External hard drives, NAS storage, video libraries, enterprise backups You might also need: Terabytes in Yottabytes.
1 TB = 8 × 10¹² bits = 1 × 10¹² bytes.
The terabyte can be abbreviated as TB; for example, 1 terabyte can be written as 1 TB.
What Is a Exabyte?
An exabyte is 1,000 petabytes or 10^18 bytes. Used to measure global internet traffic and massive data volumes. See also: converting Kibibytes to Exabytes.
The exabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. You might also need: Yb to YB conversion rate.
Common uses: Global internet traffic, hyperscale data centers, worldwide digital data estimation You might also need: calculate ZiB/s to Eibps.
1 EB = 8 × 10¹⁸ bits = 1 × 10¹⁸ bytes.
The exabyte can be abbreviated as EB; for example, 1 exabyte can be written as 1 EB.
Terabyte to Exabyte Conversion Table
The table below shows various terabyte measurements converted to exabytes.
| Terabytes | Exabytes | Exabytes (Binary) |
|---|---|---|
| 1 TB | 0.000001 EB | 0.000000953674 EB |
| 2 TB | 0.000002 EB | 0.000001907349 EB |
| 5 TB | 0.000005 EB | 0.000004768372 EB |
| 10 TB | 0.00001 EB | 0.000009536743 EB |
| 25 TB | 0.000025 EB | 0.000023841858 EB |
| 50 TB | 0.00005 EB | 0.000047683716 EB |
| 100 TB | 0.0001 EB | 0.000095367432 EB |
| 128 TB | 0.000128 EB | 0.0001220703 EB |
| 250 TB | 0.00025 EB | 0.0002384186 EB |
| 256 TB | 0.000256 EB | 0.0002441406 EB |
| 500 TB | 0.0005 EB | 0.0004768372 EB |
| 512 TB | 0.000512 EB | 0.0004882813 EB |
| 1,000 TB | 0.001 EB | 0.0009536743 EB |
| 1,024 TB | 0.001024 EB | 0.0009765625 EB |
SI Decimal vs Binary: Why Two Different Standards?
When converting terabytes to exabytes, different tools may give slightly different results. This is because there are two competing standards for measuring digital storage:
| Standard | Base | 1 KB equals | Used By |
|---|---|---|---|
| SI Decimal | 1000 | 1,000 bytes | Hard drive manufacturers, macOS, network speeds |
| Binary (IEC) | 1024 | 1,024 bytes | Windows, Linux (partially), RAM specifications |
Why Does My Hard Drive Show Less Space Than Advertised?
This difference in standards explains the common "missing hard drive space" confusion.
Example: A "500 GB" Hard Drive
- Contains exactly: 500,000,000,000 bytes
- macOS (SI Decimal): Displays 500 GB (divides by 1,000³)
- Windows (Binary): Displays 465 GB (divides by 1,024³)
The Verdict: Same bytes, same drive—just different math. No space is actually missing.
Note: Our calculator defaults to SI decimal (base 1000) to match the box label. To match Windows, toggle the standard at the top of the calculator.
💡 Storage Engineer Tip
Manufacturers label drives using SI decimal (base 1000). Windows divides by 1024 instead—that's why a "1 TB" drive shows as 931 GB. Same bytes, different math.
— Subash Geetha Krishnan, 15+ years in enterprise storage
When to Convert TB to EB
Common scenario: Planning storage allocation, comparing specifications, or converting between terabyte and exabyte for capacity planning. Use our how many Pebibytes in a TB.
Other situations include storage planning for calculating how much data fits in a given capacity, file management for understanding sizes across different scales, cost estimation for budgeting cloud storage, and backup planning for determining media requirements. Check out our Yottabytes to EB.