# Factorio Calculator

> Free online Factorio calculator for production ratios, solar panel optimization, belt balancers, and Space Age expansion. Calculate perfect factory ratios instantly with support for vanilla, Space Age, and modded games.

## Core Features

- [Production Ratio Calculator](https://factoriocalculator.blog/#calculator-tool): Calculate exact machine counts for balanced production chains with module and beacon support
- [Solar Panel Optimizer](https://factoriocalculator.blog/#calculator-tool): Determine optimal 21:25 solar panel to accumulator ratios for continuous power
- [Factorio Solar Calculator Guide](https://factoriocalculator.blog/factorio-solar-calculator/): Size solar panels, accumulators, continuous MW targets, and 25:21 expansion blocks
- [Nuclear Reactor Calculator](https://factoriocalculator.blog/factorio-nuclear-reactor-calculator/): Size reactor grids, neighbor bonus, heat exchangers, steam turbines, offshore pumps, water and fuel-cell demand
- [Nuclear Reactor Blueprint Guide](https://factoriocalculator.blog/factorio-nuclear-reactor-blueprint/): Compare 2x2, 2x4 and 2x6 layouts, audit heat, water, fuel and spent-cell logistics, and test a shared blueprint before live use
- [Oil Processing Calculator](https://factoriocalculator.blog/#calculator-tool): Balance complex oil refining recipes including advanced processing and coal liquefaction
- [Space Age Support](https://factoriocalculator.blog/#calculator-tool): Full support for quality system, planetary recipes, and space platform production

## Essential Resources

- [Factorio Blueprints Guide](https://factoriocalculator.blog/factorio-blueprints/): Import blueprint strings, organize blueprint books and test shared layouts before using them in a real base
- [Factorio Planner Guide](https://factoriocalculator.blog/factorio-planner/): Choose between a calculator, Factory Planner, FactorioLab, blueprint workflow and the in-game Upgrade Planner
- [Factorio Upgrade Planner Guide](https://factoriocalculator.blog/factorio-upgrade-planner/): Configure upgrade filters, update blueprint contents, cancel queued orders and plan safe downgrades
- [How to Use Guide](https://factoriocalculator.blog/#how-to-use): Step-by-step tutorial for optimizing factory production with our calculator
- [Factorio Ratios Guide](https://factoriocalculator.blog/factorio-ratios/): Production, power, oil, science, belt throughput, and Space Age ratio reference
- [Factorio Smelting Setup Guide](https://factoriocalculator.blog/factorio-smelting-setup/): Plan furnace rows, iron/copper/steel smelting, belt and fuel routing, and steel or electric furnace upgrades
- [Factorio Solar Calculator Guide](https://factoriocalculator.blog/factorio-solar-calculator/): Practical 25 solar panels to 21 accumulators planning, MW estimates, and expansion workflow
- [Factorio Main Bus Guide](https://factoriocalculator.blog/factorio-main-bus/): Choose bus materials, belt lanes, spacing, branch methods and the right transition to trains, bots or city blocks
- [Factorio City Block Size Guide](https://factoriocalculator.blog/factorio-city-block-size/): Choose practical rail city block sizes for trains, roboports, station bays and megabase grids
- [Factorio Megabase Guide](https://factoriocalculator.blog/factorio-megabase/): Plan a sustainable SPM target, production capacity, rail architecture, staged expansion and UPS checks
- [Factorio Train Blueprints Guide](https://factoriocalculator.blog/factorio-train-blueprints/): Choose rail blueprint books, stations, stackers, intersections and signal-safe train layouts before importing them
- [Factorio Space Age Blueprints Guide](https://factoriocalculator.blog/factorio-space-age-blueprints/): Choose, audit and test planet, rail, mall and space-platform blueprint books before scaling them
- [Factorio Train Signals Guide](https://factoriocalculator.blog/factorio-train-signals/): Place rail and chain signals around junctions, stations and bidirectional tracks, then test for deadlocks
- [Factorio Beacons Guide](https://factoriocalculator.blog/factorio-beacons/): Plan beacon range, module choices, practical eight-beacon layouts, power demand and machine coverage
- [Factorio Nuclear Reactor Calculator](https://factoriocalculator.blog/factorio-nuclear-reactor-calculator/): Dedicated nuclear block calculator for 2x2, 2x4 and larger reactor layouts
- [FAQ Section](https://factoriocalculator.blog/#faq): Common questions about solar ratios, oil processing, boiler setups, and Space Age features
- [About Us](https://factoriocalculator.blog/about): Learn about our mission to help Factorio players build efficient factories

## Key Information

- **Supported Versions**: Vanilla Factorio, Space Age expansion, Bob's Mods, Angel's Mods, Krastorio 2, Space Exploration
- **Common Ratios**: Solar (25 solar panels:21 accumulators), Steam Power (1 boiler:2 steam engines), Green Circuits (3 copper cable:2 electronic circuits), Oil Processing (goal-specific multi-output)
- **Calculator Features**: Production rates, resource planning, module optimization, belt throughput, power generation, planetary calculations
- **100% Free**: No registration required, browser-based tool powered by FactorioLab

## Latest Updates

- Space Age expansion fully supported with quality system calculations - Updated February 2026
- Enhanced oil processing calculator with automatic cracking balance - Updated February 2026
- Belt balancer configurations and throughput analysis tools - Updated February 2026