This Satisfactory splitter calculator helps you plan how to divide items across multiple conveyor belts using splitters. Enter your belt speed and desired ratios to see exactly how many items per minute each output receives, plus suggested splitter layouts. It is designed for quick factory planning so you can optimise your production lines efficiently.

Inputs

Enter the number of items your input belt carries.
Select your conveyor belt mark to see capacity limits.
How many output belts do you need?
Desired split ratio Enter a ratio value for each output. For example, 2:1:1 means the first output gets twice as much as the others.
Advanced options
Choose your preferred splitter arrangement style.
If you know exactly how many items/min you need per output, enter it here.

Results

Enter your values and press Calculate to see your splitter layout suggestions.

This Satisfactory throughput calculator will show you exactly how to split your belt into the ratio you need.

Frequently Asked Questions

What does a Satisfactory splitter calculator do?

A Satisfactory splitter calculator helps you work out how to divide items on a conveyor belt into specific ratios across multiple output belts. It calculates the exact items per minute each output receives and suggests how many splitters you need. This makes factory planning much faster than doing the maths manually.

How do I choose the right splitter ratios for my factory?

The right splitter ratio depends on what your machines need. Check the consumption rate of each machine and enter those values as your ratio. For example, if one machine needs 30 items/min and another needs 60 items/min, use a 1:2 ratio. This Satisfactory splitter ratio calculator handles the maths for you.

What belt speeds should I use for different splitter layouts?

Match your belt mark to your throughput needs. Mk.1 belts carry 60 items/min, Mk.2 carries 120, Mk.3 carries 270, Mk.4 carries 480, Mk.5 carries 780, and Mk.6 carries 1200 items/min. Always use a belt that can handle your total input throughput, plus a bit extra for safety.

What is the difference between a smart splitter and a normal splitter in Satisfactory?

A normal splitter divides items evenly across its outputs (up to three ways). A smart splitter lets you set rules for which items go where, filter by item type, or send overflow items in a specific direction. For a Satisfactory smart splitter setup, use the overflow setting to prevent belt backups.

How can I handle overflow using splitters in Satisfactory?

Use a smart splitter with the overflow setting. Set your primary output to the main belt and configure a secondary output as overflow. When the main belt backs up, excess items automatically redirect. This Satisfactory overflow splitter technique prevents production stalls in your factory.

What is a manifold splitter design and when should I use it?

A Satisfactory manifold splitter design is a series of splitters along a main belt, each feeding one machine. Items fill the first machine, then overflow to the next, and so on. Use manifolds when you want a simple, expandable layout. They take longer to balance but are very easy to build and extend.

How accurate are the throughput numbers in this splitter ratio calculator?

The calculations are mathematically precise based on your input values. Results are rounded to one decimal place for readability. In-game, minor variations can occur due to belt mechanics, but this Satisfactory conveyor belt calculator gives you accurate planning figures for optimal splitter ratios.

Can I use this conveyor splitter calculator while I am in-game?

Yes, this Satisfactory factory planning tool works on any device with a web browser. Open it on a second monitor, tablet, or phone while you play. Use the copy button to save your results, then refer to them as you build your splitter setup in-game.