Factorio Belt Throughput Reference

Belt tier stats, inserter requirements, underground distances, and a throughput calculator. Use the calculator to instantly find the minimum belt tier for any production rate.

Throughput Calculator

0.00 /s

Belt Tier Comparison

Belt Items/s Items/min Underground reach Fast inserters to fill
Yellow
 15 900 6 tiles 7
Red
 30 1800 10 tiles 14
Blue
 45 2700 18 tiles 20
PurpleSpace Age
 60 3600 20 tiles 26

Fast inserter swing rate: ~2.31 items/s (non-stack). Stack inserters increase throughput significantly. Underground distances are maximum tile gaps between input and output.

Inserter Throughput Reference

Inserter Type Items/s To fill Yellow To fill Red To fill Blue
Burner Inserter 0.60 25 50 75
Inserter 0.83 19 37 55
Long-handed Inserter 1.20 13 25 38
Fast Inserter 2.31 7 13 20
Filter Inserter 2.31 7 13 20
Stack Inserter (1 item) 2.31 7 13 20
Stack Inserter (12 items) 13.85 2 3 4

Common Bottleneck Reference

Building / Process Output rate Belt needed
Stone furnace (iron plates) 0.31 /s Yellow
Steel furnace (iron plates) 0.94 /s Yellow
Electric furnace (iron plates) 0.94 /s Yellow
Stone furnace (steel) 0.06 /s Yellow
Assembling Machine 2 (green circuits, 1x) 0.75 /s Yellow
Assembling Machine 2 (automation red science) 0.75 /s Yellow
Chemical plant (lubricant per barrel) 1.25 /s Yellow
40 electric furnaces (iron, one bus line) 37.50 /s Blue
Lab consumption (per pack) 0.02 /s Yellow
Private Factorio hosting

Run your own Factorio server.

Rent a private Factorio server on real hardware — full control-panel access, your mods, your configs, your rules. It's your server; run it your way.

Rent a Factorio server Real hardware · Full control panel · 98% SLA

Don't want to run it yourself? Our managed services & consulting team will set it up and keep it running for you — game servers, Windows, Linux, and cloud, from 10+ years of MSP work.