Moon Sweepers Calculator: Free Factory Ratio, Power and 7x Payback Planner

The Moon Sweepers calculator works out the factory ratio for Moonstone: how many Pressure Chambers feed your Stone Presses, how much Moon Dust the line eats each minute, how much power it draws, and how long the machines take to pay for themselves.

Raw Moon Dust is the weakest thing you can sell. Moon Sand sells for 3 times as much and Moonstone for 7 times as much, so the sooner your dust goes through a balanced line, the faster every later upgrade arrives.

Moon Sweepers calculator for Moon Sweepers
Balance Pressure Chambers, Stone Presses and Solar Posts.

How the Moon Sweepers Calculator Works

A Stone Press takes 1 kg of Moon Dust and 1 kg of Moon Sand and makes 2 kg of Moonstone every 6 seconds. That is 10 kg of each input and 20 kg of Moonstone per minute. A Pressure Chamber turns up to 5 kg of Dust into Moon Sand every 12 seconds, or 25 kg per minute. The Moon Sweepers calculator divides one by the other, so one Pressure Chamber feeds two and a half Stone Presses.

  1. Enter how many Stone Presses you want to run. Enter 0 to plan a Moon Sand only line.
  2. Enter the Pressure Chambers and Solar Posts you own.
  3. Enter the Moon Dust your crew and robots bring in per minute.
  4. Enter the price your game pays for 1 kg of raw Dust.
  5. Read what to build next and how fast the line pays for itself.
Moon Sweepers calculator factory ratio chart for Pressure Chamber and Stone Press
The numbers behind the factory ratio.

Moon Sweepers Machine Costs, Power and Output

MachineCostPowerWhat it does
Pressure Chamber$500Uses 10 kWMoon Dust into Moon Sand, up to 5 kg every 12 s
Stone Press$1,000Uses 18 kW1 kg Dust + 1 kg Moon Sand into 2 kg Moonstone every 6 s
Solar Post$75Makes 3 kWOutput drops at night without stored energy
Robot Vacuum Mk I$250Not publishedCleans 19 hexes around its dock
Robot Vacuum Mk II$500Not publishedCleans 37 hexes around its dock
Packager$100Not publishedPuts dust capsules onto a Conveyor
Conveyor$0.50 per meterNot published30 m per section
JONAS$20,000Not publishedRoams between dirty sectors. Needs a $1,500 Capsule Catcher

Moon Sand sells for 3 times the price of raw Dust and Moonstone for 7 times. A single press line of one chamber, one press and ten Solar Posts costs $2,250 and turns 20 kg of Dust per minute into 20 kg of Moonstone.

Brooms and Vehicles: What to Buy and What to Skip

Tool or vehiclePriceWidth or noteCapacity
ToothbrushFree12 cm0.5 kg
Nail Brush$518 cm0.75 kg
Hand Brush$1024 cm1 kg
Household Broom$2543 cm3 kg (6 kg with the $30 container upgrade)
Wide Broom$7565 cm6 kg
Extra Wide Broom$15098.8 cm12 kg
Push Sweeper$300First vehicleNot published
Ride-on Sweeper$1,000Big Hopper upgrades to 950 kg500 kg
Lunar Sweeper$2,500VehicleNot published
Mega Vacuum Rover$6,000VehicleNot published

The Nail Brush and Hand Brush are cheap but small steps. The Household Broom at $25 nearly doubles the Hand Brush width and triples its capacity, so many players go straight to it. Early upgrades worth the money are Wide Heads ($40 for 8% more width), Rapid Transfer ($30) and Market Contracts ($120 for 6% higher launch payouts).

Moon Sweepers calculator price chart for brooms and vehicles
Tool and vehicle prices.

Moon Sweepers Calculator Worked Example

You want three Stone Presses. They need 30 kg of Moon Sand per minute, so the Moon Sweepers calculator asks for two Pressure Chambers. The line draws 74 kW, which is 25 Solar Posts, and eats 60 kg of Dust per minute. It costs $5,875 to build. At $1 per kg of raw Dust the line earns $420 per minute as Moonstone, against $60 raw, so it pays for itself in about 16 minutes.

Tips for a Better Moon Sweepers Factory

  • Build power first. A machine without enough kW stops, and Solar Posts lose output at night.
  • Keep the ratio at 2 Pressure Chambers for every 5 Stone Presses.
  • Robot Vacuum Mk II covers 37 hexes for $500, almost double the Mk I for double the price. Skip Mk I if you can wait.
  • Lunar Exchange costs $2,500 and needs Market Contracts level 3, so plan for it once the presses run.
  • Run the Moon Sweepers calculator again when your Dust income changes, because Dust supply is the usual bottleneck.

About Moon Sweepers

Moon Sweepers is a co-op incremental game about cleaning the Moon. You start with a toothbrush, sweep Moon Dust off hexagonal tiles, pack it into capsules and launch it for cash. It released on Steam in late October 2026 and sold more than 700,000 copies in its first weeks.

The game moves from hand tools to vehicles such as the Ride-on Sweeper and Mega Vacuum Rover, then to automation with Robot Vacuums, Conveyors, Splitters, Mergers and the JONAS robot. Upgrades are shared across the crew in multiplayer.

The Moon Sweepers calculator on this page is free to use, and we update it when the game changes its numbers.

Official page: Moon Sweepers on Steam.

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Frequently Asked Questions

Quick answers about Moon Sweepers and the Moon Sweepers calculator.

What is the Pressure Chamber to Stone Press ratio in Moon Sweepers?

One Pressure Chamber makes 25 kg of Moon Sand per minute and one Stone Press uses 10 kg, so 2 chambers feed 5 presses.

How much is Moonstone worth in Moon Sweepers?

Moonstone sells for 7 times the price of raw Moon Dust. Moon Sand sells for 3 times.

How much power does a Stone Press need?

A Stone Press uses 18 kW and a Pressure Chamber uses 10 kW. A Solar Post makes 3 kW.

Which broom should I skip in Moon Sweepers?

Many players skip the Nail Brush and Hand Brush and save for the $25 Household Broom, which is much wider and holds 3 kg.

Is the Moon Sweepers calculator free?

Yes. It is free, needs no sign-up and saves your inputs in your browser.

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