Very easy to use calculator for the Factorio game. Just pick the required item, specify the required rate or the number of factories, and see the factory plan in the app! Draft your factory in one click.

Features of this calculator include:
- Works offline.
- Supports the latest Factorio version.
- Very easy to use, but contains a range variety of settings if required.
- Proper handling of oil products. Obtaining numbers for these recipes can be tricky, as several of the items involved may be produced from multiple recipes.
- Supports the breakdown of the production rates.
- Support for the mining productivity bonus
- Support for "expensive" mode.
- Arbitrary numerical precision. Calculations are performed using large scale rationals, so errors from floating-point calculations should not be an issue.
- May display rates per second, minute, or hour.
- Support for modules, including beacons.
- Support for multiple simultaneous outputs.