SQLite File Size Calculator

First, we need to consider a few factors that contribute to the file size:

1. Table Schema: The number of columns and their data types.
2. Row Size: The size of each row in the table.
3. Page Size: SQLite organizes data into fixed-size pages, typically 4096 bytes by default.
4. Overhead: Metadata and other internal structures add to the file size.

For estimation purposes, let's assume we're creating a simple table with three columns:

1. An integer primary key.
2. A text column.
3. A floating-point column.

The size of each row in SQLite depends on the data types used. For simplicity, we'll assume the following sizes:

• Integer: 4 bytes
• Text: 24 bytes (SQLite uses variable-length encoding for text, but let's estimate a typical size)
• Floating-point: 8 bytes

So, the size of one row would be approximately 36 bytes (4 + 24 + 8).

Now, let's consider the overhead. SQLite has some overhead for each page, typically around 20 bytes per page. Let's also account for some additional overhead for the table structure, indexes, etc. Let's estimate that to be around 100 bytes.

So, for each row, we have approximately 36 bytes of actual data and around 100 bytes of overhead.

Now, let's say we want to create a table with 1,000,000 rows. The calculation would be:

Total Size = (36 bytes + 100 bytes) * 1,000,000 rows

This gives us an estimate of around 136 MB for the SQLite file size.

Keep in mind that this is a very rough estimate. The actual file size may vary depending on many factors, including SQLite version, storage configuration, indexing, and optimization settings.