Factorio Production Mod Calculator

Production results

Production chain

Recipe	Product	Rate/s	Machine	Exact	Built	Utilization	Crafts/s	Power kW	Pollution/min	Area

Raw resources and external supplies

Material	Rate/s	Rate/min	Type

Logistics requirements

Material	Rate/s	Belts	Inserters	Wagons/min	Pipe %

Net intermediates and byproducts

Material	Produced/s	Consumed/s	Net/s	Status

Dependency tree

Vanilla starter dataset loaded.

Production targets

Example preset

Solver and calculation settings

Solver mode

Displayed rate unit

Decimal precision

Machine rounding

Production multiplier

Maximum chain depth

Available input limit

Limited material

Fixed machine count

Machines, modules, and beacons

Crafting machine

Smelting machine

Chemistry machine

Oil-processing machine

Global module preset

Modules per machine

Affecting beacons

Beacon module

Modules per beacon

Beacon transmission efficiency

Diminishing exponent

Machine quality multiplier

Module quantities are capped automatically by machine slots. Productivity is ignored when a recipe explicitly disables it.

Logistics and infrastructure

Belt throughput, items/s

Inserter throughput, items/s

Pipe capacity, fluid/s

Cargo wagon slots

Fluid wagon capacity

Buffer duration, minutes

Chain scope and external supplies

Externally supplied materials

Use Ctrl or Command to select several materials.

Expand smelting recipes

Expand chemistry recipes

Expand oil-processing recipes

Count raw mining requirements

Allow productivity effects

Credit byproducts inside the chain

Expand recycling recipes

Expand power-production recipes

Per-item and per-recipe overrides as JSON

Recipe keys use product item IDs. Machine and module keys use recipe IDs.

Mod and custom data support

Mod profile name

Factorio or mod version

Import recipes, items, machines, modules, and presets as JSON

Custom JSON schema example

{
  "items": {
    "mod-plate": {"name":"Mod plate","type":"item","stack":100}
  },
  "machines": {
    "mod-assembler": {
      "name":"Mod assembler","categories":["crafting"],
      "speed":2,"slots":6,"power":500,"drain":20,
      "pollution":1,"area":16,"quality":1
    }
  },
  "modules": {
    "mod-speed": {
      "name":"Mod speed module","speed":1,
      "productivity":0,"energy":1,"pollution":0,"quality":0
    }
  },
  "recipes": {
    "mod-plate-recipe": {
      "name":"Mod plate recipe","category":"crafting","time":2,
      "inputs":{"iron-plate":2},
      "outputs":{"mod-plate":{"amount":1,"probability":0.8}},
      "productivity":true
    }
  }
}

Scenarios and comparison

Scenario name

Saved scenarios

Compare scenario A

Compare scenario B

Formula used

Crafts per second = effective crafting speed ÷ recipe time.

Output per second = crafts per second × expected product amount × productivity multiplier.

Required machines = requested output rate ÷ output per second for one machine.

Net intermediate rate = total produced rate − total consumed rate.

Belt requirement = material flow rate ÷ selected belt throughput.

Expected probabilistic output = amount × probability for each crafting cycle.

How to use this calculator

Add one or more final products.
Choose each product rate and preferred recipe.
Select machines, modules, beacons, and optimization mode.
Mark materials supplied by another factory or train.
Adjust belt, inserter, pipe, wagon, and buffer settings.
Calculate, review warnings, then export or save the scenario.

Example production data

Target	Rate	Suggested setup	Purpose
Electronic circuit	15/s	Assembler 2, no modules	Basic belt-scale circuit line
Advanced circuit	5/s	Assembler 3, productivity modules	Compare module savings
Processing unit	1/s	Assembler 3 with beacons	Test fluid and beacon demand
Utility science	1/s	Balanced factory mode	Expand a deeper dependency chain

Frequently asked questions

Does this include every Factorio mod?

No embedded page can include every mod automatically. Import custom JSON data for the exact modpack and version.

Can it calculate several final products?

Yes. Add multiple targets and the calculator combines shared intermediate requirements.

How are alternate recipes handled?

Each target offers a recipe selector. Imported items can also provide several recipes.

How are probability outputs calculated?

The solver multiplies output amount by its probability to obtain expected output.

Are byproducts credited?

Yes, when byproduct credit is enabled. Available byproducts reduce later material demand.

Why can a machine count be fractional?

Fractional counts show exact theoretical demand. Choose upward rounding for buildable counts.

What does external supply mean?

Selected materials stop expanding. They appear as raw or imported requirements instead.

Does the PDF export require PHP libraries?

No. The page uses a browser PDF library and also supports printing.

Where are saved scenarios stored?

They remain in local browser storage. Clearing site data removes those scenarios.