Factorio Calculator for ratios and machines

An Electronic circuit has a recipe time of 0.5 s. Assembling machine 2 has a crafting speed of 0.75, so it completes 1.5 cycles per second, or 90 circuits per minute. For 45 per minute (0.75 per second), you need exactly 0.5 machines, rounded up to one. The Factorio Calculator does this for every step in the chain and only rounds up to whole machines at the end.

The “Factorio ratios” section on this page shows ratios for Electronic circuits, Advanced circuits and red, green and blue science packs, calculated with Assembling machine 2 and Electric furnaces in vanilla 2.0 without modules. To plan a research rate such as 60 science packs per minute, enter each pack separately at 60 per minute to see the machines, raw materials, power and transport belt utilization. The calculator doesn't calculate the number of labs.

Enable “Space Age” to add the expansion's recipes and machines, such as the foundry, electromagnetic plant, biochamber, and cryogenic plant, along with recipes like casting iron and making plastic from bioflux. Asteroid crushing and processing on the space platform are intentionally excluded because they depend on your platform's layout. Recycling is also excluded.

The yellow transport belt carries 15 items per second (900 per minute), the red 30 (1,800 per minute), the blue 45 (2,700 per minute), and the turbo transport belt in Space Age 60 (3,600 per minute). For each row, the calculator shows what percentage of your chosen belt’s capacity the material flow uses. Fluids travel through pipes, so they have no belt utilization.

The selected module fills every free Slot. A productivity module 3 gives +10% productivity but reduces speed by 15% and increases energy consumption by 80%. Productivity only applies to recipes that allow it. Beacons with speed modules have an effectiveness of 1.5; multiple beacons affecting one machine have diminishing returns (two beacons each have a factor of just 0.7071). Set how many machines share a beacon under “Machines per beacon”. At 1, the displayed beacon count is an upper bound.

The calculator solves the entire recipe chain at once, rather than one step at a time. This also handles Advanced oil processing, which produces Heavy oil, Light oil and Petroleum gas in a fixed ratio, and Kovarex enrichment, where a recipe consumes its own product. The calculator automatically cracks oil that isn't needed into Petroleum gas: producing 1,000 Petroleum gas per minute then takes around 1,026 Crude oil per minute, compared with 1,818 Crude oil without cracking. Anything still left over appears under “Surplus”. You can switch to Basic oil processing or Coal liquefaction in the recipe column.

Recipes, crafting times, machine values and module effects come from the game's official data export (data.raw, generated with the dedicated server) rather than being entered by hand; item names also use the game's translations. Mining productivity, recipe productivity research, quality and the space needed for transport belts, pipes and beacons are not included. Fuel for fuel-powered furnaces is shown as power in kW, not as Coal in the raw material requirements. Mining drills are counted without bonuses, offshore pumps only for water. For crude oil the calculator shows the amount per minute but no number of pumps, because their output depends on the yield of the oil field. This gives you a reliable estimate for planning a build, but it doesn't replace testing it in-game.

Plan your factory here before building it in the game, without a Mod or download. The calculation runs entirely in your browser; you don't need an account or login. The URL reflects your item, quantity and settings, so you can copy and share it. Nothing is stored on our servers.