/* Code Comments */handy conversion guide
2021-12-22
|~2 min read
|386 words
Storage Size
| byte | kb | mb | gb | tb | pb | |
|---|---|---|---|---|---|---|
| byte | 1 | 1,000 | 1,000,000 | 1,000,000,000 | 1,000,000,000,000 | 1,000,000,000,000,000 |
| kb | - | 1 | 1,000 | 1,000,000 | 1,000,000,000 | 1,000,000,000,000 |
| mb | - | - | 1 | 1,000 | 1,000,000 | 1,000,000,000 |
| gb | - | - | - | 1 | 1,000 | 1,000,000 |
| tb | - | - | - | - | 1 | 1,000 |
| pb | - | - | - | - | - | 1 |
Another way to think about byte conversion is this selected powers of two table.
| Power | Exact Value | Approx Value | Bytes |
|---|---|---|---|
| 7 | 128 | ||
| 8 | 256 | ||
| 10 | 1024 | 1 thousand | 1 KB |
| 16 | 65,536 | 64 KB | |
| 20 | 1,048,576 | 1 million | 1 MB |
| 30 | 1,073,741,824 | 1 billion | 1 GB |
| 32 | 4,294,967,296 | 4 GB | |
| 40 | 1,099,511,627,776 | 1 trillion | 1 TB |
Time
| millisecond | second | minute | hour | day | month | year | |
|---|---|---|---|---|---|---|---|
| millisecond | 1 | 1000 | 600,000 | 3,600,000 | ~85,000,000 | ~25,000,000,000 | ~9,500,000,000,000 |
| second | - | 1 | 60 | 3600 | ~85,000 | ~2,500,000 | ~30,000,000 |
| minute | - | - | 1 | 60 | 1,440 | ~85,000 | ~2,500,000 |
| hour | - | - | - | 1 | 24 | ~700 | ~8750 |
| day | - | - | - | - | 1 | ~30 | ~365 |
| month | - | - | - | - | - | 1 | 12 |
| year | - | - | - | - | - | - | 1 |
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