Database Growth
Calculator

It projects how many rows a database table will contain after a period of time, based on a starting row count and a growth rate (either a fixed number of rows added per period or a percentage growth rate), letting you plan storage and performance needs ahead of time.

Percentage growth is compounding: each period's growth is calculated on the new, larger total from the previous period, not the original starting amount. This means a steady percentage growth rate produces an increasingly larger number of new rows each period, similar to compound interest.

It depends on what's driving the growth: a table that grows with a roughly constant business activity (like daily orders in a stable business) tends to grow linearly, while a table tied to a growing user base (like new user records in a scaling startup) often grows percentage-wise, at least for a while.

Beyond storage, a growing table can affect query performance, index size and maintenance time, and backup duration — many databases show performance degradation as row counts cross certain thresholds unless properly indexed and maintained. Projecting growth helps you plan for these before they become urgent problems.

Long-term projections should be treated as rough guidance rather than precise forecasts, since growth rates rarely stay perfectly constant — business cycles, seasonality, product changes, and data archiving/deletion policies can all shift the actual trajectory. Revisit the projection periodically with updated real data.