Decimal Units
| Name | Unit | Total Bytes |
|---|---|---|
| Exabytes | EB | 1,000,000,000,000,000,000 |
| Petabytes | PB | 1,000,000,000,000,000 |
| Terabytes | TB | 1,000,000,000,000 |
| Gigabytes | GB | 1,000,000,000 |
| Megabytes | MB | 1,000,000 |
| Kilobytes | KB | 1,000 |
Binary Units
| Name | Unit | Magnitude | Total Bytes |
|---|---|---|---|
| Exbibyte | EiB | 2^60 | 1,152,921,504,606,846,976 |
| Pebibyte | PiB | 2^50 | 1,125,899,906,842,624 |
| Tebibyte | TiB | 2^40 | 1,099,511,627,776 |
| Gibibyte | GiB | 2^30 | 1,073,741,824 |
| Mebibyte | MiB | 2^20 | 1,048,576 |
| Kibibyte | KiB | 2^10 | 1,024 |
Generating Byte String
C++
inline static std::string createBytesString(size_t bytes)
{
size_t constexpr b10 = size_t(1) << 10;
size_t constexpr b20 = size_t(1) << 20;
size_t constexpr b30 = size_t(1) << 30;
size_t constexpr b40 = size_t(1) << 40;
size_t constexpr b50 = size_t(1) << 50;
size_t constexpr b60 = size_t(1) << 60;
if (bytes < b10) return std::to_string(bytes) + " bytes";
else if (bytes < b20) return std::to_string(bytes / b10) + " KiB";
else if (bytes < b30) return std::to_string(bytes / b20) + " MiB";
else if (bytes < b40) return std::to_string(bytes / b30) + " GiB";
else if (bytes < b50) return std::to_string(bytes / b40) + " TiB";
else if (bytes < b60) return std::to_string(bytes / b50) + " PiB";
return std::to_string(bytes / b60) + " EiB";
}
Python
def create_bytes_string(bytes):
b10 = 1 << 10
b20 = 1 << 20
b30 = 1 << 30
b40 = 1 << 40
b50 = 1 << 50
b60 = 1 << 60
if bytes < b10:
return f"{bytes} bytes"
elif bytes < b20:
return f"{bytes // b10} KiB"
elif bytes < b30:
return f"{bytes // b20} MiB"
elif bytes < b40:
return f"{bytes // b30} GiB"
elif bytes < b50:
return f"{bytes // b40} TiB"
elif bytes < b60:
return f"{bytes // b50} PiB"
return f"{bytes // b60} EiB"